VEL A Distance & Displacement & VEL B Speed and Velocity 1. You run from your house to a friend's house that is 3 miles away. You then walk home.
|
|
- Tobias Fowler
- 5 years ago
- Views:
Transcription
1 VEL A Distance & Displacement & VEL B Speed and Velocity 1. You run from your house to a friend's house that is 3 miles away. You then walk home. a. What distance did you travel? b. What was the displacement for the entire trip? 2. Observe the diagram below. A person starts at A, walks along the bold path and finishes at B. Each square is 1 km along its edge. Use the diagram in answering the next two questions. 3. This person walks a distance of km. 4. This person has a displacement of. a. 0 km b. 3 km c. 3 km, E d. 3 km, W e. 5 km f. 5 km, N g. 5 km, S h. 6 km i. 6 km, E j. 6 km, W k. 31 km l. 31 km, E m. 31 km, W n. None of these. 5. A child crawls 12 m South and then 14 m West. Determine their total displacement. (Include a vector diagram) 6 A student goes for a hike and travels 2.4 km North and then 5.2 km West. Determine their total displacement. (Include a vector diagram) Answer to Vel A Dist & Dipl
2 Vel B Speed and Velocity 1. A polar bear walks a distance of 160 meters in 60 seconds. What was its speed? 2. A train travels 120 seconds at a speed of 50 m/s. How far did it go? 3. How long will it take a runner to travel a distance of 1000 m at a speed of 12 m/s? 4. A car travels a distance of 1600 km in 24 hours. What was its speed? 5. A sailboat travels a distance of 600 m in 40 seconds. What speed is it going? 6. What distance will a car traveling at a speed of 50 km/hr cover in 0.25 hr? 7. How long will it take a ball to roll 10 meters along the floor at a speed of 0.5 m/s? Answers to VEL B - Speed and Velocity 1) 2.67 m/s 2) 6000 m 3) 83.3 s 4) 66.7 km/h 5) 15 m/s 6) 12.5 km 7) 20 s ACC D Projectile Motion A ball is launched horizontally from the top of a cliff with an initial velocity of 20 m/s. The trajectory of the ball is shown below. Express your understanding by filling in the blanks.
3 VEL C Motion Graphs 1. The slope of the line on a position vs. time graph reveals information about an object's velocity. The magnitude (numerical value) of the slope is equal to the object's speed and the direction of the slope (upward/+ or downward/- ) is the same as the direction of the velocity vector. Apply this understanding to answer the following questions. a. A horizontal line means. b. A straight diagonal line means. c. A curved line means. d. A gradually sloped line means. e. A steeply sloped line means. 2. The motion of several objects is depicted on the position vs. time graph. Answer the following questions. Each question may have less than one, one, or more than one answer. a. Which object(s) is(are) at rest? b. Which object(s) is(are) accelerating? c. Which object(s) is(are) not moving? d. Which object(s) change(s) its direction? e. Which object is traveling fastest? f. Which moving object is traveling slowest? g. Which object(s) is(are) moving in the same direction as object B? 3. On the graphs below, DRAW TWO LINES to represent the given verbal descriptions; label the lines/curves as A or B. A B Remaining at rest Moving A B Moving slow Moving fast A B Moving in + direction Moving in - direction 4. Use the position-time graphs below to determine the velocity.
4 Answers - VEL C Motion Graphs 1. a. A horizontal line means the velocity is 0 m/s (object is at rest). b. A straight diagonal line means the velocity is constant. c. A curved line means the velocity is changing (acceleration). d. A gradually sloped line means the velocity is small (slow). e. A steeply sloped line means the velocity is large (fast). 2. AE a. Which object(s) is(are) at rest? D b. Which object(s) is(are) accelerating? AE c. Which object(s) is(are) not moving? none d. Which object(s) change(s) its direction? B e. Which object is traveling fastest? D (on average) f. Which moving object is traveling slowest? D g. Which object(s) is(are) moving in the same direction as object B? 3. A Remaining at rest B Moving A (horizontal) A B Moving slow Moving fast B B (more sloped) A A B Moving in + direction Moving in - direction B A 4. Use the position-time graphs below to determine the velocity. v = slope = rise/run = (20 m)/(5.0 s) v = 4 m/s v = slope = rise/run = (20 m)/(5.0 s) v = 4 m/s v = slope = rise/run = (-25 m)/(5.0 s) v = -5 m/s v = slope = rise/run = (-20 m)/(5.0 s) v = -4 m/s
5 ACC A Acceleration and Free-fall The Concept of Acceleration 1. Accelerating objects are objects that are changing their velocity. Name the three controls on an automobile that cause it to accelerate. 2. An object is accelerating if it is moving. Circle all that apply. a. with changing speed b. extremely fast c. with constant velocity d. in a circle e. downward f. none of these 3. If an object is NOT accelerating, then one knows for sure that it is. a. at rest b. moving with a constant speed c. slowing down d. maintaining a constant velocity Acceleration as a Rate Quantity Acceleration is the rate at which an object's velocity changes. The velocity of an object refers to how fast it moves and in what direction. The acceleration of an object refers to how fast an object changes its speed or its direction. Objects with a high acceleration are rapidly changing their speed or their direction. As a rate quantity, acceleration is expressed by the equation: acceleration = Velocity time = v final - voriginal time 4. An object with an acceleration of 10 m/s 2 will. Circle all that apply. a. move 10 meters in 1 second b. change its velocity by 10 m/s in 1 s c. move 100 meters in 10 seconds d. have a velocity of 100 m/s after 10 s 5. Ima Speedin puts the pedal to the metal and increases her speed as follows: 0 mi/hr at 0 seconds; 10 mi/hr at 1 second; 20 mi/hr at 2 seconds; 30 mi/hr at 3 seconds; and 40 mi/hr at 4 seconds. What is the acceleration of Ima's car? 6. Mr. Henderson's (imaginary) Porsche accelerates from 0 to 60 mi/hr in 4 seconds. Its acceleration is. a. 60 mi/hr b. 15 m/s/s c. 15 mi/hr/s d. -15 mi/hr/s e. none of these 7. A car speeds up from rest to +16 m/s in 4 s. Calculate the acceleration. 8. A car slows down from +32 m/s to +8 m/s in 4 s. Calculate the acceleration. 9. In the absence of air friction all objects accelerate. A. at different rates bigger objects have more acceleration B. the same rate all objects have the same acceleration C. at different rates smaller objects have more acceleration 10. Acceleration due to gravity near the surface of Earth is meaning that. A. Every second you fall, you travel 9.8 meters. B. Every meter you fall takes 9.8 seconds C. Every 9.8 meters takes a second squared D. Every second you fall your velocity increases by 9.8 m/s
6 Answers ACC A - Acceleration and Free fall The Concept of Acceleration 1. Acceleration is a change in velocity - either in the speed or in the direction. The brake pedal and gas pedal cause speed changes. The steering wheel causes direction changes. 2. An object is accelerating if it is moving. Circle all that apply. a. with changing speed b. extremely fast c. with constant velocity d. in a circle e. downward f. none of these Accelerating objects are changing their velocity. A velocity is a speed with a direction. An object with a changing velocity can be changing its speed (choice a) and/or changing its direction (choice d). 3. If an object is NOT accelerating, then one knows for sure that it is. a. at rest b. moving with a constant speed c. slowing down d. maintaining a constant velocity If an object is not accelerating, then it is not changing its velocity. The velocity is constant. A velocity is a speed with a direction; so if it has a constant velocity, then it also has a constant speed and direction. Acceleration as a Rate Quantity 4. An object with an acceleration of 10 m/s 2 will. Circle all that apply. a. move 10 meters in 1 second b. change its velocity by 10 m/s in 1 s c. move 100 meters in 10 seconds d. have a velocity of 100 m/s after 10 s 5. Ima Speedin puts the pedal to the metal and increases her speed as follows: 0 mi/hr at 0 seconds; 10 mi/hr at 1 second; 20 mi/hr at 2 seconds; 30 mi/hr at 3 seconds; and 40 mi/hr at 4 seconds. What is the acceleration of Ima's car? Ima's acceleration is 10 mi/hr/s because her speed changes by 10 mi/hr each second. 6. Mr. Henderson's (imaginary) Porsche accelerates from 0 to 60 mi/hr in 4 seconds. Its acceleration is 15 mi/hr/s. a. 60 mi/hr b. 15 m/s/s c. 15 mi/hr/s d. -15 mi/hr/s e. none of these 7. A car speeds up from rest to +16 m/s in 4 s. Calculate the acceleration. a = velocity / time = (16 m/s - 0 m/s)/(4 s) = (16 m/s) / (4 s) = 4 m/s 2 8. A car slows down from +32 m/s to +8 m/s in 4 s. Calculate the acceleration. a = velocity / time = (8 m/s - 32 m/s)/(4 s) = (-24 m/s) / (4 s) = - 6 m/s 2 9. In the absence of air friction all objects accelerate. A. at different rates bigger objects have more acceleration B. the same rate all objects have the same acceleration C. at different rates smaller objects have more acceleration 10. Acceleration due to gravity near the surface of Earth is meaning that. A. Every second you fall, you travel 9.8 meters. B. Every meter you fall takes 9.8 seconds C. Every 9.8 meters takes a second squared D. Every second you fall your velocity increases by 9.8 m/s
7 ACC B Motion Graphs Review: Categorize the following motions as being either examples of + or - acceleration. a. Moving in the + direction and speeding up (getting faster) b. Moving in the + direction and slowing down (getting slower) c. Moving in the - direction and speeding up (getting faster) d. Moving in the - direction and slowing down (getting slower) 1. Consider the following graph of a car in motion. Use the graph to answer the questions. a. Describe the motion of the car during each of the two parts of its motion. 0-5 s: 5-15 s: b. Determine the acceleration of the car during each of the two parts of its motion. 0-5 s 5-15 s 2. Consider the following graph of a car in motion. Use the graph to answer the questions. a. Describe the motion of the car during each of the four parts of its motion s: s: s: s: b. Determine the acceleration of the car during each of the four parts of its motion s s s s 3. The slope of the line on a velocity vs. time graph reveals information about an object's acceleration. Furthermore, the area under the line is equal to the object's displacement. Apply this understanding to answer the following questions. a. A horizontal line means. b. A straight diagonal line means. c. A gradually sloped line means. d. A steeply sloped line means. 4. The motion of several objects is depicted by a velocity vs. time graph. Answer the following questions. Each question may have less than one, one, or more than one answer. a. Which object(s) is(are) at rest? b. Which object(s) is(are) accelerating? c. Which object(s) is(are) not moving? d. Which object(s) change(s) its direction? e. Which accelerating object has the smallest acceleration? f. Which object has the greatest acceleration? g. Which object(s) is(are) moving in the same direction as object E?
8 5. On the graphs below, draw two lines/curves to represent the given verbal descriptions; label the lines/curves as A or B. A Moving at constant speed A Move in + dirn; speed up A Move in - dirn; speed up B Accelerating B Move in + dirn; slow dn B Move in - dirn; slow dn 6. For each type of accelerated motion, construct the appropriate shape of a position-time graph. Moving with a + velocity and a + acceleration Moving with a + velocity and a - acceleration Moving with a - velocity and a + acceleration Moving with a - velocity and a - acceleration 7. Use the velocity-time graphs below to determine the acceleration. Graphing Summary Answers ACC B Motion Graphs
9 Review: Categorize the following motions as being either examples of + or - acceleration. a. Moving in the + direction and speeding up (getting faster) positive b. Moving in the + direction and slowing down (getting slower) negative c. Moving in the - direction and speeding up (getting faster) negative d. Moving in the - direction and slowing down (getting slower) positive 1. Consider the following graph of a car in motion. Use the graph to answer the questions. a. Describe the motion of the car during each of the two parts of its motion. 0-5 s: The car is moving in the positive direction and speeding up (accelerating) s: The car is moving in the positive direction at a constant velocity (a=0 m/s/s). b. 0-5 s 5-15 s a = slope = rise/run a = slope = rise/run a = (20 m/s)/(5 s) a = (0 m/s)/(10 s) a = 4 m/s/s a = 0 m/s/s 2. Consider the following graph of a car in motion. Use the graph to answer the questions. Describe the motion of the car during each of the four parts of its motion s: The car is moving in the positive direction at a constant velocity (a=0 m/s/s) s: The car is moving in the positive direction and speeding up (accelerating) s: The car is moving in the positive direction at a constant velocity (a=0 m/s/s) s: The car is moving in the positive direction and slowing down. b s s s s a= slope=rise/run a= slope=rise/run a= slope=rise/run a= slope=rise/run a=(0 m/s)/(10 s) a=(5 m/s)/(10 s) a=(0 m/s)/(10 s) a=(-15 m/s)/(5 s) a=0 m/s/s a=0.5 m/s/s a=0 m/s/s a=-3 m/s 3. a. A horizontal line means constant velocity (a = 0 m/s/s). b. A straight diagonal line means accelerating object. c. A gradually sloped line means small acceleration. d. A steeply sloped line means large acceleration a. Which object(s) is(are) at rest? BCD b. Which object(s) is(are) accelerating? --- c. Which object(s) is(are) not moving? BC d. Which object(s) change(s) its direction? B e. Which accelerating object has the smallest acceler'n? C f. Which object has the greatest acceleration? D (sort of BC) g. Which object(s) is(are) moving in the same direction as object E?
10 5. A Moving at constant speed B Accelerating A B Move in + dirn; speed up Move in + dirn; slow dn A B Move in - dirn; speed up Move in - dirn; slow dn B A B A B A 6. Moving with a + velocity and a + acceleration Moving with a + velocity and a - acceleration positive slope (getting steeper) Moving with a - velocity and a + acceleration positive slope Moving with a - velocity and a - acceleration Negative slope (getting flatter) 7. Use the velocity-time graphs below to determine the acceleration. PSYW Negative slope (getting steeper) a = v/t = (32 m/s - 4 m/s)/(8.0 s) a = 3.5 m/s/s a = v/t = (8 m/s - 32 m/s)/(12.0 s) a = -2.0 m/s/s Graphing Summary
11 ACC C Kinematic Equations 1. An airplane accelerates down a run-way at 3.20 m/s 2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before take-off. 2. A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distance traveled. 3. A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s 2. Determine the time for the feather to fall to the surface of the moon. 4. A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of m. Determine the acceleration of the bullet (assume a uniform acceleration). 5. An engineer is designing a runway for an airport. Several planes will use the runway and the engineer must design it so that it is long enough for the largest planes to become airborne before the runway ends. If the largest plane accelerates at 3.30 m/s 2 and has a takeoff speed of 88.0 m/s, then what is the minimum allowed length for the runway? DYN A Inertia 2. The amount of inertia possessed by an object is dependent solely upon its. 6. Inertia can best be described as. a. the force that keeps moving objects moving and stationary objects at rest. b. the willingness of an object to eventually lose its motion c. the force that causes all objects to stop d. the tendency of any object to resist change and keep doing whatever it's doing 7. Mass and velocity values for a variety of objects are listed below. Rank the objects from smallest to greatest inertia. < < <
12 Answer to ACC C Kinematic Equations 1. An airplane accelerates down a run-way at 3.20 m/s 2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before take-off. Given: a = 3.20 m/s 2 t = 32.8 s v o = 0 m/s Unknown: d =??? Relevant Equation: d = v o t + ½ a t 2 Solution: d= (0 m/s) (32.8 s) + ½ (3.20 m/s 2 ) (32.8 s) 2 d= 0 m m Answer: 1721 m = 1720 m (3 sig figs) 2. A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car. Given: v o=18.5 m/s v f=46.1 m/s t=2.47 s Unknown: a =??? Relevant Equation: d = ½ (v o + v f) t Solution: d = ½ (18.5 m/s m/s) (2.47 s) d = ½ (64.6 m/s) (2.47 s) Answer: 79.8 m 3. A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s 2. Determine the time for the feather to fall to the surface of the moon. Given: v o=0 m/s d=1.40 m a=1.67 m/s 2 Unknown: t=??? Relevant Equation: d = v o t + ½ a t 2 Solution: 1.40 m = (0 m/s) (t) + ½ (1.67 m/s 2 ) t m = (0.835 m/s 2 ) t 2 t 2 = (1.40 m) / (0.835 m/s 2 ) t = SQRT( s 2 ) (SQRT = square root) Answer: 1.29 s 4. A bullet leaves a rifle with a muzzle velocity of 521 m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of m. Determine the acceleration of the bullet (assume a uniform acceleration). Given: v o=0 m/s v f=521 m/s d=0.840 m Unknown: a=??? Relevant Equation: v 2 f = v 2 o + 2 a d Solution: (521 m/s) 2 = (0 m/s) a (0.840 m) m 2 /s 2 = (1.680 m) a a = ( m 2 /s 2 ) / (1.680 m) Answer: 1.62 x 10 5 m/s 2 (3 sig figs) 5. An engineer is designing a runway for an airport. Several planes will use the runway and the engineer must design it so that it is long enough for the largest planes to become airborne before the runway ends. If the largest plane accelerates at 3.30 m/s 2 and has a takeoff speed of 88.0 m/s, then what is the minimum allowed length for the runway? Given: v o=0 m/s a=3.30 m/s 2 v f=88.0 m/s Unknown: DDD=??? Relevant Equation: v f 2 = v o a d Solution: (88.0 m/s) 2 = (0 m/s) (3.30 m/s 2 ) d d = (7744 m 2 /s 2 ) / (6.60 m/s 2 ) Answer: 1173 m = 1170 m (3 sig figs) Answers DYN A Inertia 2. The amount of inertia possessed by an object is dependent solely upon its mass. 6. Inertia can best be described as D. a. the force that keeps moving objects moving and stationary objects at rest. b. the willingness of an object to eventually lose its motion c. the force that causes all objects to stop d. the tendency of any object to resist change and keep doing whatever it's doing 7. Mass and velocity values for a variety of objects are listed below. Rank the objects from smallest to greatest inertia. C < D < A < B Objects with the least mass have the least amount of inertia; objects with the most mass have the greatest amount of inertia. The velocity or speed of the object has nothing to do with inertia.
13 DYN C Newton s 2 nd Law 5. A 2.0-N force is applied to a 1.0 kg book in order to move it across a desk with an acceleration of 0.5 m/sec 2. Consider frictional forces. Neglect air resistance. Diagram the forces acting on the book. FBD: Fx = Fy = ax = ay = 6. A 1.5-N force is applied to a 1.0 kg book in order to move it across a desk at constant velocity. Consider frictional forces. Neglect air resistance. Diagram the forces acting on the book. FBD: Fx = Fy = ax = ay = 7. A 70.0-kg skydiver is descending with a constant velocity. Consider air resistance. Diagram the forces acting upon the skydiver. FBD: Fx = Fy = ax = ay = 8. A 30-N force is applied to drag a 20-kg sled across loosely packed snow with an acceleration of 1.0 m/s 2. Diagram the forces acting upon the sled. FBD: Fx = Fy = ax = ay = 9. An 800-kg car is coasting to the right with a leftward acceleration of 1 m/s 2. Diagram the forces acting upon the car. FBD: Fx = Fy = ax = ay =
14 Answers DYNC Newton s 2 nd Law 5. A 2.0-N force is applied to a 1.0 kg book in order to move it across a desk with an acceleration of 0.5 m/sec 2. Consider frictional forces. Neglect air resistance. Diagram the forces acting on the book. F frict = 1.5 N FBD: F norm = 9.8 N F grav = 9.8 N F app = 2.0 N Fx = 0.50 N, right ax = 0.5 m/s 2, right Fy = 0 N ay = 0 m/s 2 6. A 1.5-N force is applied to a 1.0 kg book in order to move it across a desk at constant velocity. Consider frictional forces. Neglect air resistance. Diagram the forces acting on the book. FBD: Fx = 0 N Fy = 0 N F frict = 2.0 N F norm = 9.8 N F app = 2.0 N ax = 0 m/s 2 ay = 0 m/s 2 F grav = 9.8 N 7. A 70.0-kg skydiver is descending with a constant velocity. Consider air resistance. Diagram the forces acting upon the skydiver. FBD: F air = 686 N Fx = 0 N ax = 0 m/s 2 Fy = 0 N ay = 0 m/s 2 F grav = 686 N 8. A 30-N force is applied to drag a 20-kg sled across loosely packed snow with an acceleration of 1.0 m/s 2. Diagram the forces acting upon the sled. FBD: Fx = 20.0 N, right Fy = 0 N F frict = 20.0 N F norm = 196 N F app = 30.0 N ax = 1.0 m/s 2 ay = 0 m/s 2 F grav = 196 N 9. An 800-kg car is coasting to the right with a leftward acceleration of 1 m/s 2. Diagram the forces acting upon the car. FBD: Fx = 800 N, left Fy = 0 N F air = 800 N F norm = 7840 N ax = 1.0 m/s 2, left ay = 0 m/s 2 F grav = 7840 N
15 DYN D Newtons 3 rd Law 3. TRUE or FALSE: As you sit in your seat in the physics classroom, the Earth pulls down upon your body with a gravitational force; the reaction force is the chair pushing upwards on your body with an equal magnitude. If False, correct the answer. 4. Shirley Bored sits in her seat in the English classroom. The Earth pulls down on Shirley's body with a gravitational force of 600 N. Describe the reaction force of the force of gravity acting upon Shirley. 5. Use Newton's third law (law of action-reaction) and Newton's second law (law of acceleration: a = Fnet/m) to complete the following statements by filling in the blanks. a. A bullet is loaded in a rifle and the trigger is pulled. The force experienced by the bullet is (less than, equal to, greater than) the force experienced by the rifle. The resulting acceleration of the bullet is (less than, equal to, greater than) the resulting acceleration of the rifle. b. A bug crashes into a high-speed bus. The force experienced by the bug is (less than, equal to, greater than) the force experienced by the bus. The resulting acceleration of the bug is (less than, equal to, greater than) the resulting acceleration of the bus. c. A massive linebacker collides with a smaller halfback at midfield. The force experienced by the linebacker is (less than, equal to, greater than) the force experienced by the halfback. The resulting acceleration of the linebacker is (less than, equal to, greater than) the resulting acceleration of the halfback. d. The 10-ball collides with the 14-ball on the billiards table (assume equal mass balls). The force experienced by the 10-ball is (less than, equal to, greater than) the force experienced by the 14-ball. The resulting acceleration of the 10-ball is (less than, equal to, greater than) the resulting acceleration of the 14- ball.
16 Answers DYN D Newton s 3 rd Law 3. TRUE or FALSE: As you sit in your seat in the physics classroom, the Earth pulls down upon your body with a gravitational force; the reaction force is the chair pushing upwards on your body with an equal magnitude. If False, correct the answer. The reaction force to the Earth pulling down on your body is the force of your body pulling up on the Earth. 4. Shirley Bored sits in her seat in the English classroom. The Earth pulls down on Shirley's body with a gravitational force of 600 N. Describe the reaction force of the force of gravity acting upon Shirley. Shirley's body pulls upward on the Earth with 600 N of force. Gravitational force, like all forces, results from a mutual interaction. In the case of gravity, it is the mutual attraction of two objects for one another. Not only does the Earth attract Shirley's mass, Shirley attracts the Earth's mass. 5. Use Newton's third law (law of action-reaction) and Newton's second law (law of acceleration: a = Fnet/m) to complete the following statements by filling in the blanks. a. A bullet is loaded in a rifle and the trigger is pulled. The force experienced by the bullet is equal to (less than, equal to, greater than) the force experienced by the rifle. The resulting acceleration of the bullet is greater than (less than, equal to, greater than) the resulting acceleration of the rifle. b. A bug crashes into a high-speed bus. The force experienced by the bug is equal to (less than, equal to, greater than) the force experienced by the bus. The resulting acceleration of the bug is greater than (less than, equal to, greater than) the resulting acceleration of the bus. c. A massive linebacker collides with a smaller halfback at midfield. The force experienced by the linebacker is equal to (less than, equal to, greater than) the force experienced by the halfback. The resulting acceleration of the linebacker is less than (less than, equal to, greater than) the resulting acceleration of the halfback. d. The 10-ball collides with the 14-ball on the billiards table (assume equal mass balls). The force experienced by the 10-ball is equal to (less than, equal to, greater than) the force experienced by the 14-ball. The resulting acceleration of the 10-ball is equal to (less than, equal to, greater than) the resulting acceleration of the 14-ball.
17 DYN F Friction Review 1. What is the formula for calculating the force of gravity? 2. What is a normal force? What does normal force mean? 3. A textbook is at rest on a table. There are only two forces acting on the book; the force of gravity and the normal force. Draw a free-body diagram of the textbook at rest on the table with the two forces present. 4. True or False? Explain why The force of gravity on the textbook is equal to the normal force. 5. True or False? Explain why Weight and force of gravity are the same thing. Conceptual 1. True or False? Explain why Friction is a force opposing motion; therefore friction is always in the opposite direction of the motion. 2. True or False? Explain why Kinetic Friction and Static Friction is the same thing. 3. True or False? Explain why Kinetic Friction is greater than Static Friction because objects create more friction when they are moving. 4. True or False? Explain why The greater the coefficient of friction, the greater the force of friction a surface can create therefore resulting in more friction being present as an object moves across the surface. Computational 1. The coefficient of kinetic friction between an object and the surface upon which it is sliding is The mass of the object is 16kg. What is the force of friction? 2. The coefficient of kinetic friction between an object and the surface upon which it is sliding is The mass of the object is 8.0 kg. What is the force of friction? 3. The force of friction between an object and the surface upon which it is sliding is 46N and the coefficient of friction between them is What is the weight of the object? 4. The force of friction between an object and the surface upon which it is sliding is 360N. The mass of the object is 95kg. What is the coefficient of kinetic friction? 5. The force of friction between an object and the surface upon which it is sliding is 126 N and the coefficient of friction between them is What is the mass of the object?
18 DYN F Friction Answers 1. What is the formula for calculating the force of gravity? The formula for the force of gravity is : where g, or acceleration due to gravity equals 9.8 m/s 2 2. What is a normal force? What does normal force mean? Normal force is a force a surface pushing on an object. Most commonly, normal force is used to describe the force a table or a desk pushed up on an object at rest on the table or desk. Normal force is not always straigt up. It is sometimes at an angle when the surface is slanted or sloped. 3. A textbook is at rest on a table. There are only two forces acting on the book; the force of gravity and the normal force. Draw a free-body diagram of the textbook at rest on the table with the two forces present. Normal Force Force of gravity 4. True or False? Explain why The force of gravity on the textbook is equal to the normal force. TRUE! The force of gravity going down is equal to the normal force going up because the textbook is not moving up or down and there are no other forces acting on the book in the up or down direction. Therefore the forces going up and going down must be balanced or equal. 5. True or False? Explain why Weight and force of gravity are the same thing. TRUE! The force of gravity is called your weight textbook Conceptual 1. True or False? Explain why Friction is a force opposing motion; therefore friction is always in the opposite direction of the motion. TRUE! Friction opposes motion therefore friction is in the opposite direction of motion. If an object is moving to the right, then friction is to the left. If a car is moving to the left, and slowing down, it is still moving to the left and in this case, friction is to the right. 2. True or False? Explain why Kinetic Friction and Static Friction is the same thing. FALSE! Kinetic friction is the friction that exists between an object and a surface when the object is moving. Static friction is the friction that exists between an object and a surface when the object is not moving, or at rest. 3. True or False? Explain why Kinetic Friction is greater than Static Friction because objects create more friction when they are moving. FALSE! Kinetic friction is less than Static Friction. Think of it in terms of Newton s 1 st Law. An object at rest, wants to stay at rest. Therefore an object at rest requires more force to begin motion. The object is at rest and wants to stay at rest; therefore it has more friction than on object in motion. Again, think about in terms of Newton s 1st Law. An object in motion wants to stay in motion, therefore it requires less force to keep it moving, it has less opposition to a force that wants to keep it moving, and therefore it creates less friction. 4. True or False? Explain why The greater the coefficient of friction, the greater the force of friction a surface can create therefore resulting in more friction being present as an object moves across the surface. TRUE! The formula is: or where the symbol stands for coefficient of friction. Therefore, the greater that number for, the greater the force of friction will be. For example, a piece of steel on top of another piece of steel has a coefficient of friction of about 0.7. The coefficient of friction between two pieces of ice is Also, the coefficient of STATIC friction between two materials is greater than the coefficient of KINETIC friction between the same two materials. or Answers Computational 1)23.52 N 2)7.84 N 3) N 4) ) 64.3 kg
19 UCM A Velocity
20 Computational UCM A Velocity Answers
21 UCM B Acceleration Computational UCM B Accelerations
22 Answers to UCM B Acceleration Computational 1 2,500 m/s/s m/s/s m/s/s m/s/s 9. TOP: 12 m/s/s, down BOTTOM: 32 m/s/s 10.
23 Conceptual UCM C Force Computational
24 Conceptual Answer to UCM- C Force Computational 10) 21, N
Inertia and Mass. 7. Mass and velocity values for a variety of objects are listed below. Rank the objects from smallest to greatest inertia.
Name: Inertia and Mass Read from Lesson 1 of the Newton's Laws chapter at The Physics Classroom: http://www.physicsclassroom.com/class/newtlaws/u2l1a.html http://www.physicsclassroom.com/class/newtlaws/u2l1b.html
More informationInertia and Mass. 7. Mass and velocity values for a variety of objects are listed below. Rank the objects from smallest to greatest inertia.
Inertia and Mass Read from Lesson 1 of the Newton's Laws chapter at The Physics Classroom: http://www.physicsclassroom.com/class/newtlaws/u2l1a.html http://www.physicsclassroom.com/class/newtlaws/u2l1b.html
More informationFinal Exam Review Answers
Weight (Pounds) Final Exam Review Answers Questions 1-8 are based on the following information: A student sets out to lose some weight. He made a graph of his weight loss over a ten week period. 180 Weight
More informationInertia and Mass. Newton's Laws
Inertia and Mass Read from Lesson 1 of the Newton's Laws chapter at The hysics Classroom: http://www.physicsclassroom.com/class/newtlaws/u2l1a.cfm http://www.physicsclassroom.com/class/newtlaws/u2l1b.cfm
More informationWhat does the lab partner observe during the instant the student pushes off?
Motion Unit Review State Test Questions 1. To create real-time graphs of an object s displacement versus time and velocity versus time, a student would need to use a A motion sensor.b low- g accelerometer.
More informationUnit 6: Forces II PRACTICE PROBLEMS
Regents Physics Mrs. Long Unit 6: Forces II PRACTICE PROBLEMS Essential Understanding for the Unit: The net force can be determined by using force diagrams in order to show all forces acting, and thereby
More informationDescribing Motion Verbally with Distance and Displacement
Name: Describing Motion Verbally with Distance and Displacement Read from Lesson 1 of the 1-D Kinematics chapter at The Physics Classroom: http://www.physicsclassroom.com/class/1dkin/u1l1a.html http://www.physicsclassroom.com/class/1dkin/u1l1b.html
More informationSemester 1 Final Exam Review Answers
Position (m) Mass (g) Semester 1 Final Exam Review Answers A physics student was interested in finding the mass of a penny. To do so she grabbed a bunch of pennies and placed them on a scale. She gathered
More informationSemester 1 Final Exam Review Answers
Position (m) Mass (g) Semester 1 Final Exam Review Answers A physics student was interested in finding the mass of a penny. To do so she grabbed a bunch of pennies and placed them on a scale. She gathered
More information7. Two forces are applied to a 2.0-kilogram block on a frictionless horizontal surface, as shown in the diagram below.
1. Which statement about the movement of an object with zero acceleration is true? The object must be at rest. The object must be slowing down. The object may be speeding up. The object may be in motion.
More informationIsaac Newton. What is the acceleration of the car? "If I have seen further it is by standing on the shoulders of giants" Isaac Newton to Robert Hooke
Aim: What did Isaac Newton teach us about motion? Do Now: 1. A 2009 Ford Mustang convertible is travelling at constant velocity on Interstate 95 south from Philadelphia to Wilmington Delaware. It passes
More informationMotion and Forces study Guide
Motion and Forces study Guide Completion Complete each statement. 1. The motion of an object looks different to observers in different. 2. The SI unit for measuring is the meter. 3. The direction and length
More informationForce Test Review. 1. Give two ways to increase acceleration. You can increase acceleration by decreasing mass or increasing force.
Force Test Review 1. Give two ways to increase acceleration. You can increase acceleration by decreasing mass or increasing force. 2. Define weight. The force of gravity on an object at the surface of
More informationIf there is nothing pushing on an object, it will not move. If there is nothing pushing on an object, it will not stop. The List:
If there is nothing pushing on an object, it will not move. If there is nothing pushing on an object, it will not stop. The List: No Push No Go No Push No Stop No Push No Speed Up No Push No Slow Down
More informationMOTION & FORCES. Observing Motion. Speed and Velocity. Distance vs. Displacement CHAPTERS 11 & 12
Observing Motion CHAPTERS 11 & 12 MOTION & FORCES Everything surrounding us is in motion, but it is relative to other object that remain in place. Motion is observed using a frame of reference. Motion
More informationMotion *All matter in the universe is constantly at motion Motion an object is in motion if its position is changing
Aim: What is motion? Do Now: Have you ever seen a race? Describe what occurred during it. Homework: Vocabulary Define: Motion Point of reference distance displacement speed velocity force Textbook: Read
More informationChapter: Newton s Laws of Motion
Table of Contents Chapter: Newton s Laws of Motion Section 1: Motion Section 2: Newton s First Law Section 3: Newton s Second Law Section 4: Newton s Third Law 1 Motion What is motion? Distance and Displacement
More informationPYP 001 FIRST MAJOR EXAM CODE: TERM: 151 SATURDAY, OCTOBER 17, 2015 PAGE: 1
TERM: 151 SATURDAY, OCTOBER 17, 2015 PAGE: 1 *Read the following (20) questions and choose the right answer: 1 The figure below represents the speed-time graph for the motion of a vehicle during a 7.0-minute
More informationA. true. 6. An object is in motion when
1. The SI unit for speed is A. Miles per hour B. meters per second 5. Frictional forces are greatest when both surfaces are rough. A. true B. false 2. The combination of all of the forces acting on an
More informationThe diagram below shows a block on a horizontal frictionless surface. A 100.-newton force acts on the block at an angle of 30. above the horizontal.
Name: 1) 2) 3) Two students are pushing a car. What should be the angle of each student's arms with respect to the flat ground to maximize the horizontal component of the force? A) 90 B) 0 C) 30 D) 45
More informationLecture Presentation. Chapter 4 Forces and Newton s Laws of Motion. Chapter 4 Forces and Newton s Laws of Motion. Reading Question 4.
Chapter 4 Forces and Newton s Laws of Motion Lecture Presentation Chapter 4 Forces and Newton s Laws of Motion Chapter Goal: To establish a connection between force and motion. Slide 4-2 Chapter 4 Preview
More informationChapter: Motion, Acceleration, and Forces
Chapter 3 Table of Contents Chapter: Motion, Acceleration, and Forces Section 1: Describing Motion Section 2: Acceleration Section 3: Motion and Forces 1 Motion Describing Motion Distance and time are
More informationCHAPTER 2: NEWTON S 1 ST LAW OF MOTION-INERTIA 01/02/18
CHAPTER 2: NEWTON S 1 ST LAW OF MOTION-INERTIA 01/02/18 HISTORY OF IDEAS ABOUT MOTION Aristotle (384-322 BC) o Natural Motion An object will strive to get to its proper place determined by its nature or
More information9/27/12. Chapter: Motion, Acceleration, and Forces. Motion and Position. Motion. Distance. Relative Motion
9/7/ Table of Contents Chapter: Motion,, and Forces Section : Chapter Section : Section : Motion Distance and time are important. In order to win a race, you must cover the distance in the shortest amount
More informationFree Body Diagram Practice
Name: Free Body Diagram Practice Per: Read each scenario and draw a diagram of the forces acting upon the object(s). 1. A book is at rest on a table top. Diagram the forces acting on the book. 2. A girl
More informationUnit 4 Review. inertia interaction pair net force Newton s first law Newton s second law Newton s third law position-time graph
Unit 4 Review Vocabulary Review Each term may be used once. acceleration constant acceleration constant velocity displacement force force of gravity friction force inertia interaction pair net force Newton
More informationIsaac Newton. What is a force? Newton s Three Laws of Motion. What is the acceleration of the car?
Aim: What did Isaac Newton teach us about motion? Do Now: 1. A 2009 Ford Mustang convertible is travelling at constant velocity on Interstate 95 south from Philadelphia to Wilmington Delaware. It passes
More informationKEY NNHS Introductory Physics: MCAS Review Packet #1 Introductory Physics, High School Learning Standards for a Full First-Year Course
Introductory Physics, High School Learning Standards for a Full First-Year Course I. C ONTENT S TANDARDS Central Concept: Newton s laws of motion and gravitation describe and predict the motion of 1.1
More informationPhysics Midterm Review Sheet
Practice Problems Physics Midterm Review Sheet 2012 2013 Aswers 1 Speed is: a a measure of how fast something is moving b the distance covered per unit time c always measured in units of distance divided
More informationGalileo & Friction 2000 yrs prior to inertia idea, the popular belief was that all objects want to come to a rest. BUT 1600's: Galileo reasoned that
Galileo & Friction 2000 yrs prior to inertia idea, the popular belief was that all objects want to come to a rest. BUT 1600's: Galileo reasoned that moving objects eventually stop only because of a force
More informationSPS8. STUDENTS WILL DETERMINE RELATIONSHIPS AMONG FORCE, MASS, AND MOTION.
MOTION & FORCES SPS8. STUDENTS WILL DETERMINE RELATIONSHIPS AMONG FORCE, MASS, AND MOTION. A. CALCULATE VELOCITY AND ACCELERATION. B. APPLY NEWTON S THREE LAWS TO EVERYDAY SITUATIONS BY EXPLAINING THE
More information3.3 Acceleration An example of acceleration Definition of acceleration Acceleration Figure 3.16: Steeper hills
3.3 Acceleration Constant speed is easy to understand. However, almost nothing moves with constant speed for long. When the driver steps on the gas pedal, the speed of the car increases. When the driver
More information1. (P2.1A) The picture below shows a ball rolling along a table at 1 second time intervals. What is the object s average velocity after 6 seconds?
PHYSICS FINAL EXAM REVIEW FIRST SEMESTER (01/2017) UNIT 1 Motion P2.1 A Calculate the average speed of an object using the change of position and elapsed time. P2.1B Represent the velocities for linear
More informationAP Physics B Summer Assignment Packet 3
AP Physics B Summer Assignment Packet 3 The assignments included here are to be brought to the first day of class to be submitted. They are: Problems from Conceptual Physics Find the Mistake Straightening
More informationPre Comp Review Questions 7 th Grade
Pre Comp Review Questions 7 th Grade Section 1 Units 1. Fill in the missing SI and English Units Measurement SI Unit SI Symbol English Unit English Symbol Time second s second s. Temperature Kelvin K Fahrenheit
More informationAccording to Newton s 2 nd Law
According to Newton s 2 nd Law If the force is held constant the relationship between mass and acceleration is direct/inverse. If the mass is held constant the relationship between force and acceleration
More informationChapter Introduction. Motion. Motion. Chapter Wrap-Up
Chapter Introduction Lesson 1 Lesson 2 Lesson 3 Describing Motion Graphing Motion Forces Chapter Wrap-Up What is the relationship between motion and forces? What do you think? Before you begin, decide
More information3. The diagram shows two bowling balls, A and B, each having a mass of 7.00 kilograms, placed 2.00 meters apart.
1. Which statement describes the gravitational force and the electrostatic force between two charged particles? A) The gravitational force may be either attractive or repulsive, whereas the electrostatic
More informationDynamics: Forces and Newton s Laws of Motion
Lecture 7 Chapter 5 Physics I Dynamics: Forces and Newton s Laws of Motion Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsi Today we are going to discuss: Chapter 5: Force, Mass:
More informationNewton s First Law. Newton s Second Law 9/29/11
Newton s First Law Any object remains at constant velocity unless acted upon by a net force. AND In order for an object to accelerate, there must be a net force acting on it. Constant velocity could mean
More informationPhysics 2A Chapter 4: Forces and Newton s Laws of Motion
Physics 2A Chapter 4: Forces and Newton s Laws of Motion There is nothing either good or bad, but thinking makes it so. William Shakespeare It s not what happens to you that determines how far you will
More informationUnit I: Motion Subunit B: Constant Acceleration Chapter 2 Sections 2 and 3 Texas Physics p
Name: Period: Unit I: Motion Subunit B: Constant Acceleration Chapter 2 Sections 2 and 3 Texas Physics p. 47-63 Equations (figure 2.6 p.56) Variables, Units (ch 2 Summary p.72) Method for problem solving
More informationChapter 4 Newton s Laws
Chapter 4 Newton s Laws Isaac Newton 1642-1727 Some inventions and discoveries: 3 laws of motion Universal law of gravity Calculus Ideas on: Sound Light Thermodynamics Reflecting telescope In this chapter,
More informationIntroductory Physics, High School Learning Standards for a Full First-Year Course
Introductory Physics, High School Learning Standards for a Full First-Year Course I. C O N T E N T S T A N D A R D S Central Concept: Newton s laws of motion and gravitation describe and predict the motion
More informationAP Physics I Summer Work
AP Physics I Summer Work 2018 (20 points) Please complete the following set of questions and word problems. Answers will be reviewed in depth during the first week of class followed by an assessment based
More informationPhysics Revision Guide Volume 1
Physics Revision Guide Volume 1 "Many people do not plan to fail, they just fail to plan!" Develop a customized success plan Create necessity in you to take action now Boost your confidence in your revision
More informationBEFORE YOU READ. Forces and Motion Gravity and Motion STUDY TIP. After you read this section, you should be able to answer these questions:
CHAPTER 2 1 SECTION Forces and Motion Gravity and Motion BEFORE YOU READ After you read this section, you should be able to answer these questions: How does gravity affect objects? How does air resistance
More informationPre-Comp Review Questions- 8 th Grade
Pre-Comp Review Questions- 8 th Grade Section 1- Units 1. Fill in the missing SI and English Units Measurement SI Unit SI Symbol English Unit English Symbol Time second s. Temperature K Fahrenheit Length
More informationPS113 Chapter 4 Forces and Newton s laws of motion
PS113 Chapter 4 Forces and Newton s laws of motion 1 The concepts of force and mass A force is described as the push or pull between two objects There are two kinds of forces 1. Contact forces where two
More informationUnit 2: Newton s Laws Note 1 : Forces
Unit 2: Newton s Laws Note 1 : Forces Force: The units of force are: There are four fundamental forces that make up all of the forces in the universe: 1) 2) 3) 4) Force of Gravity Force of Gravity: The
More informationPhysics Semester 1 Review
Physics Semester 1 Review Name: 1. Define: Speed Velocity Acceleration Use the graph to the right to answer questions 2-4. 2. How far did the object travel in 3 seconds? 3. How long did it take for the
More informationPage 1. Name:
Name: 3834-1 - Page 1 1) If a woman runs 100 meters north and then 70 meters south, her total displacement is A) 170 m south B) 170 m north C) 30 m south D) 30 m north 2) The graph below represents the
More informationPhysics 100 Reminder: for on-line lectures
Physics 100 Reminder: http://www.hunter.cuny.edu/physics/courses/physics100/fall-2016 for on-line lectures Today: Finish Chapter 3 Chap 4 - Newton s Second Law In Chapter 4, we establish a relationship
More informationIntroductory Physics, High School Learning Standards for a Full First-Year Course
Introductory Physics, High School Learning Standards for a Full First-Year Course I. C ONTENT S TANDARDS Central Concept: Newton s laws of motion and gravitation describe and predict the motion of 1.1
More informationConcepTest PowerPoints
ConcepTest PowerPoints Chapter 4 Physics: Principles with Applications, 6 th edition Giancoli 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for
More informationQuestion: Are distance and time important when describing motion? DESCRIBING MOTION. Motion occurs when an object changes position relative to a.
Question: Are distance and time important when describing motion? DESCRIBING MOTION Motion occurs when an object changes position relative to a. DISTANCE VS. DISPLACEMENT Distance Displacement distance
More informationFour naturally occuring forces
Forces System vs Environment: system the object the force is applied to environment the world around the object that exerts the force Type Forces: Contact is applied by touching Long range exerted without
More informationPhysics Final Practice Exam Part 1
Physics Final Practice Exam Part 1 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which one of the following problems would NOT be a part of physics?
More informationChapter Introduction. Motion. Motion. Chapter Wrap-Up
Chapter Introduction Lesson 1 Lesson 2 Lesson 3 Describing Motion Graphing Motion Forces Chapter Wrap-Up What is the relationship between motion and forces? What do you think? Before you begin, decide
More informationIs there a net force?
Is there a net force? A net force (i.e., an unbalanced force) causes acceleration. In the motion unit, several means of representing accelerated motion were discussed. Combine your prior understanding
More informationReview Session 1. Page 1
Review Session 1 1. Which combination of fundamental units can be used to express the amount of work done on an object? 2. The height of a typical kitchen table is approximately A) 10-2 m B) 10 0 m C)
More informationact concurrently on point P, as shown in the diagram. The equilibrant of F 1
Page 1 of 10 force-friction-vectors review Name 12-NOV-04 1. A 150.-newton force, F1, and a 200.-newton force, F 2, are applied simultaneously to the same point on a large crate resting on a frictionless,
More informationSection Distance and displacment
Chapter 11 Motion Section 11.1 Distance and displacment Choosing a Frame of Reference What is needed to describe motion completely? A frame of reference is a system of objects that are not moving with
More informationNewton s Laws of Motion. Chapter 4
Newton s Laws of Motion Chapter 4 Newton s First Law of Motion Force A force is a push or pull. An object at rest needs a force to get it moving; a moving object needs a force to change its velocity. Force
More informationPhysics 4A Chapter 5: Force and Motion and Chapter 6: Dynamics I: Motion Along a Line
Physics 4A Chapter 5: Force and Motion and Chapter 6: Dynamics I: Motion Along a Line Conceptual Questions and Example Problems from Chapters 5 and 6 Conceptual Question 5.7 An object experiencing a constant
More informationAn object moves back and forth, as shown in the position-time graph. At which points is the velocity positive?
1 The slope of the tangent on a position-time graph equals the instantaneous velocity 2 The area under the curve on a velocity-time graph equals the: displacement from the original position to its position
More informationDynamics; Newton s Laws of Motion
Dynamics; Newton s Laws of Motion Force A force is any kind of push or pull on an object. An object at rest needs a force to get it moving; a moving object needs a force to change its velocity. The magnitude
More informationUnit 2 Forces. Fundamental Forces
Lesson14.notebook July 10, 2013 Unit 2 Forces Fundamental Forces Today's goal: I can identify/name applied forces and draw appropriate free body diagrams (FBD's). There are 4 fundamental forces Gravity
More information1D Motion: Review Packet Problem 1: Consider the following eight velocity vs. time graphs. Positive velocity is forward velocity.
Name: 1D Motion: Review Packet Problem 1: Consider the following eight velocity vs. time graphs. Positive velocity is forward velocity. Graph A Graph B Graph C Graph D Graph E Graph F Graph G Graph H (a)
More information3/10/2019. What Is a Force? What Is a Force? Tactics: Drawing Force Vectors
What Is a Force? A force acts on an object. A force requires an agent, something that acts on the object. If you throw a ball, your hand is the agent or cause of the force exerted on the ball. A force
More informationDynamics: Forces and Newton s Laws of Motion
Lecture 7 Chapter 5 Dynamics: Forces and Newton s Laws of Motion Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsi Today we are going to discuss: Chapter 5: Force, Mass: Section 5.1
More informationPhysics 11 Comprehensive Exam Preparation
Physics 11 Comprehensive Exam Preparation Kinematics 1. A bike first accelerates from 0.0 m/s to 5.0 m/s in 4.5 s, then continues at this constant speed for another 4.5 s. What is the total distance traveled
More informationChapter 4. Forces in One Dimension
Chapter 4 Forces in One Dimension Chapter 4 Forces in One Dimension In this chapter you will: *VD Note Use Newton s laws to solve problems. Determine the magnitude and direction of the net force that causes
More informationPage 1. Name: Section This assignment is due at the first class in 2019 Part I Show all work!
Name: Section This assignment is due at the first class in 2019 Part I Show all work! 7164-1 - Page 1 1) A car travels at constant speed around a section of horizontal, circular track. On the diagram provided
More informationNewton s first law. Objectives. Assessment. Assessment. Assessment. Assessment 5/20/14. State Newton s first law and explain its meaning.
Newton s first law Objectives State Newton s first law and explain its meaning. Calculate the effect of forces on objects using the law of inertia. Explain conceptually why moving objects do not always
More informationName Date Hour Table
Name Date Hour Table Chapter 3 Pre-AP Directions: Use the clues to create your word bank for the word search. Put the answer to each question with its number in the word bank box. Then find each word in
More informationNewton s Laws of Motion. I. Law of Inertia II. F=ma III. Action-Reaction
Newton s Laws of Motion I. Law of Inertia II. F=ma III. Action-Reaction While most people know what Newton's laws say, many people do not know what they mean (or simply do not believe what they mean).
More information1. A sphere with a radius of 1.7 cm has a volume of: A) m 3 B) m 3 C) m 3 D) 0.11 m 3 E) 21 m 3
1. A sphere with a radius of 1.7 cm has a volume of: A) 2.1 10 5 m 3 B) 9.1 10 4 m 3 C) 3.6 10 3 m 3 D) 0.11 m 3 E) 21 m 3 2. A 25-N crate slides down a frictionless incline that is 25 above the horizontal.
More informationWelcome to Forces an anticipation guide A force is defined as a push or a pull When answering the following true or false statements, offer a
Welcome to Forces an anticipation guide A force is defined as a push or a pull When answering the following true or false statements, offer a real-life example that justifies your answer. You haven t answered
More informationForces. Dynamics FORCEMAN
1 Forces Dynamics FORCEMAN 2 What causes things to move? Forces What is a force? A push or a pull that one body exerts on another. 3 Balanced No change in motion 4 5 Unbalanced If the forces acting on
More informationWhat Is a Force? Slide Pearson Education, Inc.
What Is a Force? A force acts on an object. A force requires an agent, something that acts on the object. If you throw a ball, your hand is the agent or cause of the force exerted on the ball. A force
More informationPhysics Test Review: Mechanics Session: Name:
Directions: For each statement or question, write in the answer box, the number of the word or expression that, of those given, best completes the statement or answers the question. 1. The diagram below
More informationMotion, Forces, and Energy
Motion, Forces, and Energy What is motion? Motion - when an object changes position Types of Motion There are 2 ways of describing motion: Distance Displacement Distance Distance is the total path traveled.
More information1. is the force that opposes motion between two objects in contact.
Name: Vocabulary: Write the correct word in each space. Word Bank: force acceleration friction velocity gravity speed net force motion 1. is the force that opposes motion between two objects in contact.
More informationGo on to the next page.
Chapter 10: The Nature of Force Force a push or a pull Force is a vector (it has direction) just like velocity and acceleration Newton the SI unit for force = kg m/s 2 Net force the combination of all
More information1. Type your first name. * 2. Type your last name. * 3. Choose the block I teach you for science. * Mark only one oval. Block 1.
Hippenmeyer Physics Assessment 1 Your email address (khippenmeyer@ncmcs.net) will be recorded when you submit this form. Not khippenmeyer? Sign out * Required 1. Type your first name. * 2. Type your last
More informationShow all workings for questions that involve calculations. No marks will be given for correct answers that are not supported by calculations.
Assignment 8 Unit 2 Newton s Laws (Outcomes 325-5, 325-8) Name: Multiple Choice: Show all workings for questions that involve calculations. No marks will be given for correct answers that are not supported
More informationTwentieth SLAPT Physics Contest Southern Illinois University Edwardsville April 30, Mechanics Test
Twentieth SLAPT Physics Contest Southern Illinois University Edwardsville April 30, 2005 Mechanics Test Please answer the following questions on the supplied answer sheet. You may write on this test booklet,
More informationPart D: Kinematic Graphing - ANSWERS
Part D: Kinematic Graphing - ANSWERS 31. On the position-time graph below, sketch a plot representing the motion of an object which is.... Label each line with the corresponding letter (e.g., "a", "b",
More informationCalculating Acceleration
Calculating Acceleration Textbook pages 392 405 Before You Read Section 9. 2 Summary How do you think a velocity-time graph might differ from the position-time graph you learned about in the previous chapter?
More informationForce and Motion Easy to read Version. Junior Science
Force and Motion Easy to read Version Junior Science 1 1a The different types of motion Objects that move from one point of space to another over time are said to have motion. Examples include a tortoise
More informationMotion and Forces. Forces
CHAPTER 8 Motion and LESSON 3 What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before column if you agree with the statement or a D
More information8 th Science Force, Motion, and Energy
8 th Science Force, Motion, and Energy #1 What is speed plus direction? Example: Geese fly about 64 km/hr when they migrate south. A: Force B: Weight C: Acceleration D: Velocity D. Velocity #2 A push or
More informationForces and Newton s Laws Reading Notes. Give an example of a force you have experienced continuously all your life.
Forces and Newton s Laws Reading Notes Name: Section 4-1: Force What is force? Give an example of a force you have experienced continuously all your life. Give an example of a situation where an object
More information2. If a net horizontal force of 175 N is applied to a bike whose mass is 43 kg what acceleration is produced?
Chapter Problems Newton s 2nd Law: Class Work 1. A 0.40 kg toy car moves at constant acceleration of 2.3 m/s 2. Determine the net applied force that is responsible for that acceleration. 2. If a net horizontal
More informationChapter 5 Matter in Motion Focus Notes
Chapter 5 Matter in Motion Focus Notes Section 1 Define the following terms: Motion, Speed, Velocity, and Acceleration Motion: an object s change in position relative to a reference point. Speed: the distance
More informationCHAPTER 6 TEST REVIEW -- MARKSCHEME
Force (N) AP PHYSICS Name: Period: Date: 50 Multiple Choice 45 Single Response 5 Multi-Response Free Response 3 Short Free Response 2 Long Free Response DEVIL PHYSICS BADDEST CLASS ON CAMPUS AP EXAM CHAPTER
More informationPHYSICS. Chapter 5 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT Pearson Education, Inc.
PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 5 Lecture RANDALL D. KNIGHT Chapter 5 Force and Motion IN THIS CHAPTER, you will learn about the connection between force and motion.
More informationChapter: Motion, Acceleration, and Forces
Table of Contents Chapter: Motion, Acceleration, and Forces Section 1: Describing Motion Section 2: Acceleration Section 3: Motion and Forces 1 Motion Are distance and time important in describing running
More information(numerical value) In calculating, you will find the total distance traveled. Displacement problems will find the distance from the starting point to the ending point. *Calculate the total amount traveled
More information