# The net force on a moving object is suddenly reduced to zero. As a consequence, the object

Size: px
Start display at page:

Download "The net force on a moving object is suddenly reduced to zero. As a consequence, the object"

Transcription

1 The net force on a moving object is suddenly reduced to zero. As a consequence, the object (A) stops abruptly (B) stops during a short time interval (C) changes direction (D) continues at a constant velocity (E) changes velocity in an unknown manner 5 m m A 5 m uniform plank of mass 00 kg rests on the top of a building with m extended over the edge as shown above. How far can a 50-kg person venture past the edge of the building on the plank before the plank just begins to tip? (A) 0.5 m (B).0 m (C).5 m (D).0 m (E) It is impossible to make the plank tip since the person would have to be more than meters from the edge of the building. An astronomer estimates the mass of galaxy to be 0 solar masses. Galaxy has a mass one-third that of galaxy. Which of the following is the best order of magnitude estimate for the mass of the galaxy? (A) 0 3 solar masses (B) 0 5 solar masses (C) 0 8 solar masses (D) 0 solar masses (E) 0 4 solar masses

2 5 N N kg A block of mass kg slides along a horizontal tabletop. A horizontal applied force of N and a vertical applied force of 5 N act on the block, as shown above. If the coefficient of kinetic friction between the block and the table is 0., the frictional force exerted on the block is most nearly (A) N (B) 3 N (C) 4 N (D) 5 N (E) 7 N X Y Consider the figure above which shows a ball that is projected and follows a parabolic path. Point Y is the highest point on the path, and air resistance is negligible. Which of the following best shows the direction of the acceleration of the ball at point X? (A) (D) (B) (E) (C)

3 x A B C D E The motion of a particle along a straight line is represented by the position, x, versus time, t, graph above. At which of the labeled points on the graph is the magnitude of the acceleration of the particle greatest? (A) A (B) B (C) C (D) D (E) E t v = C x In the above equation, the distance x is measured in meters, the time t is in seconds, and the velocity v is in meters per second. What are the SI units of the constant C? (A) m (B) m s (C) m/s (D) m (E) m A massless rigid rod of length 3d is pivoted at a fixed point W, and two forces each of magnitude F are applied vertically upward as shown above. A third vertical force of magnitude F may be applied, either upward or downward, at one of the labeled points. With the proper choice of direction at each point, the rod can be in equilibrium if the third force of magnitude F is applied at point (A) W only (B) Y only (C) V or X only (D) V or Y only (E) V, W, or X

4 An airplane heads due east at 600 km/hr. The wind blows from the north at 50 km/hr. The cardinal directions (N, S, E, W) are represented as indicated below. With respect to the earth, the plane s velocity is best represented by which vector? Three forces act on an object. If the object is in translational equilibrium, which of the following must be true? I. The vector sum of the three forces must equal zero. II. The magnitudes of the three forces must be equal III. All three forces must be parallel (A) I only (B) II only (C) I and III only (D) II and III only (E) I, II, and III velocity (m/s) time (s) An object of mass kg moves according to the velocity-time graph pictured above. The net force on the object from 0 to 4 seconds is (A).7 N (B).0 N (C) 0 (D) +.0 N (E) +.7 N

5 5 m 3 m 37 o 4 m A kg block sits at rest on the incline shown above. The magnitude of the normal force exerted on the block by the plane is most nearly (A) 0 N (B) N (C) 6 N (D) 0 N (E) 33 N Questions - relate to five particles that start at position x = 0 at time t = 0 and move in one dimension independently of one another. Graphs of the velocity of each particle versus time are shown below. v (m/s) v (m/s) 0 time (s) 0 time (s) - Particle A - Particle B v (m/s) v (m/s) 0 time (s) 0 time (s) - Particle C - Particle D v (m/s) 0 time (s) - Particle E Which particle is farthest from the origin at t = seconds? (A) A (B) B (C) C (D) D (E) E Which particle moves with a constant nonzero acceleration? (A) A (B) B (C) C (D) D (E) E

6 The figure above shows a cart of mass M accelerating to the right with a block of mass m held to the front surface only by friction. The coefficient of friction between the surfaces is µ. What is the minimum acceleration a of the cart such that the block will not fall? A stone of mass kg and weight 0 N falls through the air. The air resistance acting on the stone is N. What is the acceleration of the stone? (A) m/s (B) 9.8 m/s (C) 8 m/s (D) 5 m/s (E) m/s A massless rod is supported at point P as shown above. A block weighing 40 N is attached to the rod 0. m from P. How far from point P must a block weighing 80 N be attached in order to balance the rod? (A) 0. m (B) 0. m (C) 0.4 m (D) 0.5 m (E) 0.8 m

7 A horizontal force F is used to pull a 5-kg block across a floor at a constant speed of 3 m/s. The frictional force between the block and the floor is 0 N. What is the value of the coefficient of kinetic friction, µ k? (A) 0.0 (B) 0.5 (C) 0.0 (D) 0.5 (E) 0.50 The one of the following that is not a vector is (A) acceleration (B) force (C) speed (D) velocity (E) momentum If an object experiences no net force, which of the following must be true about its motion? I. The object has an average velocity of zero. II. The object's velocity does not change. III. The object cannot move. (A) I only (B) II only (C) III only (D) I and II only (E) I and III only A car rounds a curve at a steady 40 m/s. Which of the following is happening to the car s velocity vector? (A) It is increasing in magnitude. (B) It is decreasing in magnitude. (C) It does not change. (D) Its magnitude remains constant but its direction changes. (E) Its magnitude is zero. Position X Y T t Two trains, X and Y, begin moving on parallel tracks from the same starting position at a train station. The graph above shows their respective distances from the starting point as functions of time. At time T, which of the following is true? (A) Train X is moving faster than train Y. (B) Train Y is moving faster than train X. (C) Trains X and Y are moving at the same speed. (D) Train X is ahead of train Y. (E) Train Y is ahead of train X.

8 Consider a system consisting only of the earth and a bowling ball, which moves upward in a parabola 0 m above earth s surface. The downward force of earth s gravity on the ball, and the upward force of the ball s gravity on the earth, form a Newton s third law force pair. Which of the following statements about the ball is correct? (A) The ball must be in equilibrium since the upward forces must cancel downward forces. (B) The ball accelerates toward the earth because the force of gravity on the ball is greater than the force of the ball on the earth. (C) The ball accelerates toward the earth because the force of gravity on the ball is the only force acting on the ball. (D) The ball accelerates away from earth because the force causing the ball to move upward is greater than the force of gravity on the ball. (E) The ball accelerates away from earth because the force causing the ball to move upward plus the force of the ball on the earth are together greater than the force of gravity on the ball. A cart is initially moving at 0.5 m/s along a track. The cart comes to rest after traveling m. The experiment is repeated on the same track, but now the cart is initially moving at m/s. How far does the cart travel before coming to rest? (A) m (B) m (C) 3 m (D) 4 m (E) 8 m A wheel of radius R and negligible mass is mounted on a horizontal frictionless axle so that the wheel is in a vertical plane. Three small objects having masses m, M, and M, respectively, are mounted on the rim of the wheel, as shown above. If the system is in static equilibrium, what is the value of m in terms of M? (A) (B) (C) (D) (E) M M 3M M 5m

9 A rubber ball bounces on the ground as shown. After each bounce, the ball reaches one-half the height of the bounce before it. If the time the ball was in the air between the first and second bounce was second, what would be the time between the second and third bounce? (A) 0.50 s (B) 0.7 s (C).0 s (D).4 s (E).0 s A rock of mass m is thrown horizontally off a building from a height h, as shown above. The speed of the rock as it leaves the thrower's hand at the edge of the building is υ 0. How much time does it take the rock to travel from the edge of the building to the ground? (A) hυ 0 (B) h υ 0 (C) hυ 0 g (D) (E) h g h g 4. A 0 kg boulder rests on the surface of the Earth, which has a mass of 5.98 x 0 4 kg. What is the magnitude of the gravitational force that the boulder exerts on Earth? (A) 5.98 x 0 5 N (B) 5.98 x 0 4 N (C) 00 N (D) 0 N (E) The boulder exerts no force on the earth.

10 Which of the above graphs could correctly represent the motion of an object moving with a constant speed in a straight line? (F) graph I only (G) graph II only (H) graphs I and IV only (I) graphs II and V only (J) All of the above graphs represent constant speed in a straight line. Three stones of different mass (m, m, and 3m) are thrown vertically upward with different velocities (v, v, and 3v, respectively). The diagram indicates the mass and velocity of each stone. Rank from high to low the maximum height of each stone. Assume air resistance is negligible. (K) [high] I, II, III [low] (L) [high] II, I, III [low] (M) [high] III, II, I [low] (N) [high] I, III, II [low] (O) All reach the same height. Is it possible for an object s velocity to increase while its acceleration decreases? (P) No, this is impossible because of the way in which acceleration is defined. (Q) No, because if acceleration is decreasing the object will be slowing down. (R) No, because velocity and acceleration must always be in the same direction. (S) Yes, an example would be an object falling near the surface of the moon. (T) Yes, an example would be an object falling in the presence of air resistance.

11 Above is velocity-time graph representing a duck flying south for the winter. At what point did the duck stop its forward motion? (A) A (B) B (C) C (D) D (E) Between A and B A block rests on an incline that makes an angle θ with the horizontal. The block remains at rest as θ is slowly increased. What happens to the magnitudes of the normal force and the static friction force of the incline on the block? a. Both increase b. Both decrease c. Both remain the same d. The normal force increases while the friction force decreases. e. The friction force increases while the normal force decreases. Two boxes are accelerated to the right on a frictionless horizontal surface as shown above. The larger box has a mass of 9 kg, and the smaller box has a mass of 3 kg. If a 4 N horizontal force pulls on the larger box, with what force does the larger box pull on the smaller box? (A) 3 N (B) 6 N (C) 8 N (D) 8 N (E) 4 N

12 A toy car moves along the x-axis according to the velocity-time graph shown above. When does the car have zero acceleration? f. At.0 and 4.0 seconds g. At 3.0 seconds h. At 3.3 and 5. seconds i. The acceleration is always zero. j. The acceleration is never zero. A ball of mass m is thrown horizontally at a vertical wall with a speed v and bounces off elastically and horizontally. What is the magnitude of the change in momentum of the ball? (A) mv (B) mv (C) zero mv (D) 4 mv (E) A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen m, they both have the same (A) inertia (B) speed (C) momentum (D) kinetic energy (E) change in potential energy If a ball is thrown directly upwards with twice the initial speed of another, how much higher will it be at its apex? (A) 8 times (B) 4 times (C) times (D) times (E) times

13 . Which one of the following quantities can have its unit expressed as kg m s (A) force (B) power (C) kinetic energy (D) pressure (E) linear momentum? 5. The free fall trajectory of an object thrown from the top of a building is shown as the dashed line in the figure above. Which sets of arrows best correspond to the directions of the velocity and of the acceleration for the object at the point labeled P on the diagram?. Consider the motion of an object described by the position-time graph above. For what time(s) is the speed of the object the greatest? (A) At all times from t = 0 s to t =.0 s (B) At time t = 3.0 s (C) At time 4.0 s (D) At all times from t = 5.0 s to 7.0 s (E) At time t = 8.5 s 3. A car with mass M initially travels to the east with speed 4v. A truck initially travels to the west with speed 3v. After the vehicles collide, they move together to the west with common speed v. What is the mass of the truck? (A) M (B) 3M (C) 4M (D) 5M (E) 6M 4. A 5.0 kg solid sphere falls at more than its terminal velocity near the surface of the earth. The mass of the earth is 6.0 x 0 4 kg. What is the magnitude of the gravitational force exerted by the solid sphere on the earth? 6. In the velocity-time graph above, the positive direction is east. Which of the following is correct? (A) The object moves to the west the entire time. (B) The object moves to the east the entire time. (C) The object moves to the west, and then to the east. (D) The object moves to the east, and then to the west. (E) The object changes its direction of motion more than once. (A) 0 N (B) 5 N (C) 50 N (D) 6 x 0 5 N (E) It is immeasurably small, but not zero.

14 7. A 0 kg box remains at rest while a person pushes directly to the right on the box with a force of 60 N. The coefficient of kinetic friction between the box and the surface is µ k = 0.0. The coefficient of static friction between the box and the surface is µ s = What is the magnitude of the force of friction acting on the box during the push? (A) 00 N (B) 0 N (C) 60 N (D) 40 N (E) 0 N 8. A point object is connected to the end of a long string of negligible mass and the system swings as a simple pendulum with period T. What is the period of the pendulum if the string is made to have onequarter of its original length? (A) 4T (B) T (C) T (D) T / (E) T / 4 9. A mass m is pulled outward until the string of length L to which it is attached makes a 90 o angle with the vertical. The mass is released from rest and swings through a circular arc. What is the tension in the string when the mass swings through the bottom of the arc? (A) 0 (B) ½mg (C) mg (D) mg (E) 3mg 0. Two boxes of different masses in an orbiting space station appear to float at rest one above the other with respect to the station. An astronaut applies the same force to both boxes. Can the boxes have the same acceleration with respect to the space station? (A) No, because the boxes are moving in orbits of different radius. (B) No, because the box of greater mass requires more force to reach the same acceleration. (C) Yes, because both boxes appear weightless. (D) Yes, because both boxes are accelerating toward earth at the same rate. (E) It cannot be determined without knowing whether the boxes are being pushed parallel or perpendicular to earth s gravity.. An object is dropped from rest from a certain height. Air resistance is negligible. After falling a distance d, the object s kinetic energy is proportional to which of the following? (A) (B) (C) (D) d (E) d d d d. An object is projected vertically upward from ground level. It rises to a maximum height H. If air resistance is negligible, which of the following must be true for the object when it is at height H/? (A) Its speed is half of its initial speed. (B) Its kinetic energy is half of its initial kinetic energy. (C) Its potential energy is half of its initial potential energy. (D) Its total mechanical energy is half of its initial value. (E) Its total mechanical energy is half of its value at the highest point.

15 3. A boy of mass m and a girl of mass m are initially at rest at the center of a frozen pond. They push each other so that she slides to the left at speed v across the frictionless ice surface and he slides to the right as shown above. What is the total work done by the children? (A) Zero (B) mv (C) mv (D) mv (E) 3mv 6. A kg object initially moving with a constant velocity is subjected to a force of magnitude F in the direction of motion. A graph of F as a function of time t is shown above. What is the increase, if any, in the velocity of the object during the time the force is applied? (A) 0 m/s (B).0 m/s (C) 3.0 m/s (D) 4.0 m/s (E) 6.0 m/s 4. An object of mass M travels along a horizontal air track at a constant speed v and collides elastically with an object of identical mass that is initially at rest on the track. Which of the following statements is true for the two objects after the impact? (A) The total momentum is Mv and the total kinetic energy is ½Mv. (B) The total momentum is Mv and the total kinetic energy is less than ½Mv. (C) The total momentum is less than Mv and the total kinetic energy is ½Mv. (D) The momentum of each object is ½Mv. (E) The kinetic energy of each object is ¼Mv. 5. A spherical planet has mass greater than that of earth, but its density is unknown. The weight of an object on that planet compared with its weight on earth is which of the following? 7. A particle P moves around the circle of radius R shown above under the influence of a radial force of magnitude F. What is the work done by the radial force as the particle moves from position to position halfway around the circle? (A) Zero (B) RF (C) RF (D) πrf (E) πrf (A) Larger (B) The same (C) Smaller (D) It cannot be determined without information about the planet s size. (E) It cannot be determined without information about the planet s atmosphere.

16 Questions 8 and 9 Two blocks of wood, each of mass kg, are suspended from the ceiling by strings of negligible mass, as shown above.. Three students were arguing about the height of a parking garage. One student suggested that to determine the height of the garage, they simply had to drop tennis balls from the top and time the fall of the tennis balls. If the time for the ball to fall was.4 seconds, approximately how tall is the parking garage? (A) 5 m (B) 7 m (C) 0 m (D) 4 m (E) 0 m 8. What is the tension in the upper string? (A) 0 N (B) 0 N (C) 40 N (D) 50 N (E) 60 N 9. What is the force exerted on the upper block by the lower string? (A) Zero (B) 0 N upward (C) 0 N downward (D) 0 N upward (E) 0 N downward 0. The period of a mass-spring system undergoing simple harmonic oscillation is T. If the amplitude of the mass-spring s motion is doubled, what will be the new period? (A) ¼T (B) ½T (C) T (D) T (E) 4T. A deliveryman moves 0 cartons from the sidewalk, along a 0-meter ramp to a loading dock, which is.5 meters above the sidewalk. If each carton has a mass of 5 kg, what is the total work done by the deliveryman on the cartons to move them to the loading dock? (A) 500 J (B) 3750 J (C) J (D) J (E) J 3. An astronaut on the Moon simultaneously drops a feather and a hammer. The fact that they reach the surface at the same instant shows that (A) No gravity forces act on a body in a vacuum. (B) The acceleration due to gravity on the Moon is less than the acceleration due to gravity on the Earth. (C) The gravitational force from the Moon on heavier objects (the hammer) is equal to the gravitational force on lighter objects (the feather). (D) A hammer and feather have less mass on the Moon than on Earth. (E) In the absence of air resistance all bodies at a given location fall with the same acceleration.

### PHYS 101 Previous Exam Problems. Force & Motion I

PHYS 101 Previous Exam Problems CHAPTER 5 Force & Motion I Newton s Laws Vertical motion Horizontal motion Mixed forces Contact forces Inclines General problems 1. A 5.0-kg block is lowered with a downward

### 5. A car moves with a constant speed in a clockwise direction around a circular path of radius r, as represented in the diagram above.

1. The magnitude of the gravitational force between two objects is 20. Newtons. If the mass of each object were doubled, the magnitude of the gravitational force between the objects would be A) 5.0 N B)

### - 1 -APPH_MidTerm. Mid - Term Exam. Part 1: Write your answers to all multiple choice questions in this space. A B C D E A B C D E

Name - 1 -APPH_MidTerm AP Physics Date Mid - Term Exam Part 1: Write your answers to all multiple choice questions in this space. 1) 2) 3) 10) 11) 19) 20) 4) 12) 21) 5) 13) 22) 6) 7) 14) 15) 23) 24) 8)

### Page 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

### 3. How long must a 100 N net force act to produce a change in momentum of 200 kg m/s? (A) 0.25 s (B) 0.50 s (C) 1.0 s (D) 2.0 s (E) 4.

AP Physics Multiple Choice Practice Momentum and Impulse 1. A car of mass m, traveling at speed v, stops in time t when maximum braking force is applied. Assuming the braking force is independent of mass,

### Twentieth 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,

### Potential Energy & Conservation of Energy

PHYS 101 Previous Exam Problems CHAPTER 8 Potential Energy & Conservation of Energy Potential energy Conservation of energy conservative forces Conservation of energy friction Conservation of energy external

### Pre-AP Physics Review Problems

Pre-AP Physics Review Problems SECTION ONE: MULTIPLE-CHOICE QUESTIONS (50x2=100 points) 1. The graph above shows the velocity versus time for an object moving in a straight line. At what time after t =

### AP Physics 1 Multiple Choice Questions - Chapter 4

1 Which of ewton's Three Laws of Motion is best expressed by the equation F=ma? a ewton's First Law b ewton's Second Law c ewton's Third Law d one of the above 4.1 2 A person is running on a track. Which

### s_3x03 Page 1 Physics Samples

Physics Samples KE, PE, Springs 1. A 1.0-kilogram rubber ball traveling east at 4.0 meters per second hits a wall and bounces back toward the west at 2.0 meters per second. Compared to the kinetic energy

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) You are standing in a moving bus, facing forward, and you suddenly fall forward as the

### 66 Chapter 6: FORCE AND MOTION II

Chapter 6: FORCE AND MOTION II 1 A brick slides on a horizontal surface Which of the following will increase the magnitude of the frictional force on it? A Putting a second brick on top B Decreasing the

### PHYSICS 1. Section I 40 Questions Time 90 minutes. g = 10 m s in all problems.

Note: To simplify calculations, you may use PHYSICS 1 Section I 40 Questions Time 90 minutes 2 g = 10 m s in all problems. Directions: Each of the questions or incomplete statements below is followed by

### Practice Test for Midterm Exam

A.P. Physics Practice Test for Midterm Exam Kinematics 1. Which of the following statements are about uniformly accelerated motion? Select two answers. a) If an object s acceleration is constant then it

### C) D) 2. The diagram below shows a worker using a rope to pull a cart.

1. Which graph best represents the relationship between the acceleration of an object falling freely near the surface of Earth and the time that it falls? 2. The diagram below shows a worker using a rope

### An 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

### PRACTICE TEST for Midterm Exam

South Pasadena AP Physics PRACTICE TEST for Midterm Exam FORMULAS Name Period Date / / d = vt d = v o t + ½ at 2 d = v o + v 2 t v = v o + at v 2 = v 2 o + 2ad v = v x 2 + v y 2 = tan 1 v y v v x = v cos

### 5. Use the graph below to determine the displacement of the object at the end of the first seven seconds.

Name: Hour: 1. The slope of the tangent on a position-time graph equals the: Sem 1 Exam Review Advanced Physics 2015-2016 2. The area under the curve on a velocity-time graph equals the: 3. The graph below

### Concept Question: Normal Force

Concept Question: Normal Force Consider a person standing in an elevator that is accelerating upward. The upward normal force N exerted by the elevator floor on the person is 1. larger than 2. identical

### Topic 2 Revision questions Paper

Topic 2 Revision questions Paper 1 3.1.2018 1. [1 mark] The graph shows the variation of the acceleration a of an object with time t. What is the change in speed of the object shown by the graph? A. 0.5

### (A) I only (B) III only (C) I and II only (D) II and III only (E) I, II, and III

1. A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen 1m, they both have the same (A) inertia (B) speed (C)

### Forces Review. A. less than the magnitude of the rock s weight, but greater than zero A. 0 B. 45 C. 90. D. 180.

Name: ate: 1. Two 20.-newton forces act concurrently on an object. What angle between these forces will produce a resultant force with the greatest magnitude?. 0 B. 45 C. 90.. 180. 5. rock is thrown straight

### 1. 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.

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Common Quiz Mistakes / Practice for Final Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A ball is thrown directly upward and experiences

### The 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

### PHYSICS 221, FALL 2011 EXAM #2 SOLUTIONS WEDNESDAY, NOVEMBER 2, 2011

PHYSICS 1, FALL 011 EXAM SOLUTIONS WEDNESDAY, NOVEMBER, 011 Note: The unit vectors in the +x, +y, and +z directions of a right-handed Cartesian coordinate system are î, ĵ, and ˆk, respectively. In this

### Regents Physics. Physics Midterm Review - Multiple Choice Problems

Name Physics Midterm Review - Multiple Choice Problems Regents Physics 1. A car traveling on a straight road at 15.0 meters per second accelerates uniformly to a speed of 21.0 meters per second in 12.0

### PSI AP Physics B Dynamics

PSI AP Physics B Dynamics Multiple-Choice questions 1. After firing a cannon ball, the cannon moves in the opposite direction from the ball. This an example of: A. Newton s First Law B. Newton s Second

### Name Lesson 7. Homework Work and Energy Problem Solving Outcomes

Physics 1 Name Lesson 7. Homework Work and Energy Problem Solving Outcomes Date 1. Define work. 2. Define energy. 3. Determine the work done by a constant force. Period 4. Determine the work done by a

### 1. (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

### AP Physics First Nine Weeks Review

AP Physics First Nine Weeks Review 1. If F1 is the magnitude of the force exerted by the Earth on a satellite in orbit about the Earth and F2 is the magnitude of the force exerted by the satellite on the

### AP 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

### Chapter 4 Force and Motion

Chapter 4 Force and Motion Units of Chapter 4 The Concepts of Force and Net Force Inertia and Newton s First Law of Motion Newton s Second Law of Motion Newton s Third Law of Motion More on Newton s Laws:

### Q1. Which of the following is the correct combination of dimensions for energy?

Tuesday, June 15, 2010 Page: 1 Q1. Which of the following is the correct combination of dimensions for energy? A) ML 2 /T 2 B) LT 2 /M C) MLT D) M 2 L 3 T E) ML/T 2 Q2. Two cars are initially 150 kilometers

### Base your answers to questions 5 and 6 on the information below.

1. A car travels 90. meters due north in 15 seconds. Then the car turns around and travels 40. meters due south in 5.0 seconds. What is the magnitude of the average velocity of the car during this 20.-second

### UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics

UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 111.6 MIDTERM TEST #2 November 15, 2001 Time: 90 minutes NAME: STUDENT NO.: (Last) Please Print (Given) LECTURE SECTION

### Name: Class: Date: so sliding friction is better so sliding friction is better d. µ k

Name: Class: Date: Exam 2--PHYS 101-F08 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. You put your book on the seat next to you. When the bus stops,

### A force is could described by its magnitude and by the direction in which it acts.

8.2.a Forces Students know a force has both direction and magnitude. P13 A force is could described by its magnitude and by the direction in which it acts. 1. Which of the following could describe the

### 1. Which one of the following situations is an example of an object with a non-zero kinetic energy?

Name: Date: 1. Which one of the following situations is an example of an object with a non-zero kinetic energy? A) a drum of diesel fuel on a parked truck B) a stationary pendulum C) a satellite in geosynchronous

### Physics Midterm Review KEY

Name: Date: 1. Which quantities are scalar? A. speed and work B. velocity and force C. distance and acceleration D. momentum and power 2. A 160.-kilogram space vehicle is traveling along a straight line

### AP Physics Multiple Choice Practice Torque

AP Physics Multiple Choice Practice Torque 1. A uniform meterstick of mass 0.20 kg is pivoted at the 40 cm mark. Where should one hang a mass of 0.50 kg to balance the stick? (A) 16 cm (B) 36 cm (C) 44

### Sample Physics Placement Exam

Sample Physics 130-1 Placement Exam A. Multiple Choice Questions: 1. A cable is used to take construction equipment from the ground to the top of a tall building. During the trip up, when (if ever) is

### PY205N Spring The vectors a, b, and c. are related by c = a b. The diagram below that best illustrates this relationship is (a) I

PY205N Spring 2013 Final exam, practice version MODIFIED This practice exam is to help students prepare for the final exam to be given at the end of the semester. Please note that while problems on this

### 11. (7 points: Choose up to 3 answers) What is the tension,!, in the string? a.! = 0.10 N b.! = 0.21 N c.! = 0.29 N d.! = N e.! = 0.

A harmonic wave propagates horizontally along a taut string of length! = 8.0 m and mass! = 0.23 kg. The vertical displacement of the string along its length is given by!!,! = 0.1!m cos 1.5!!! +!0.8!!,

### The graph shows how an external force applied to an object of mass 2.0 kg varies with time. The object is initially at rest.

T2-2 [195 marks] 1. The graph shows how an external force applied to an object of mass 2.0 kg varies with time. The object is initially at rest. What is the speed of the object after 0.60 s? A. 7.0 ms

### A) more mass and more inertia C) the same as the magnitude of the rock's weight C) a man standing still on a bathroom scale

1. A 15-kilogram cart is at rest on a horizontal surface. A 5-kilogram box is placed in the cart. Compared to the mass and inertia of the cart, the cart-box system has A) more mass and more inertia B)

### 4) Vector = and vector = What is vector = +? A) B) C) D) E)

1) Suppose that an object is moving with constant nonzero acceleration. Which of the following is an accurate statement concerning its motion? A) In equal times its speed changes by equal amounts. B) In

### NAME. (2) Choose the graph below that represents the velocity vs. time for constant, nonzero acceleration in one dimension.

(1) The figure shows a lever (which is a uniform bar, length d and mass M), hinged at the bottom and supported steadily by a rope. The rope is attached a distance d/4 from the hinge. The two angles are

### Center of Mass & Linear Momentum

PHYS 101 Previous Exam Problems CHAPTER 9 Center of Mass & Linear Momentum Center of mass Momentum of a particle Momentum of a system Impulse Conservation of momentum Elastic collisions Inelastic collisions

### Use a BLOCK letter to answer each question: A, B, C, or D (not lower case such a b or script such as D)

Physics 23 Spring 212 Answer Sheet Print LAST Name: Rec Sec Letter EM Mini-Test First Name: Recitation Instructor & Final Exam Student ID: Gently remove this page from your exam when you begin. Write clearly

### Physics 12 Final Exam Review Booklet # 1

Physics 12 Final Exam Review Booklet # 1 1. Which is true of two vectors whose sum is zero? (C) 2. Which graph represents an object moving to the left at a constant speed? (C) 3. Which graph represents

### y(t) = y 0 t! 1 2 gt 2. With y(t final ) = 0, we can solve this for v 0 : v 0 A ĵ. With A! ĵ =!2 and A! = (2) 2 + (!

1. The angle between the vector! A = 3î! 2 ĵ! 5 ˆk and the positive y axis, in degrees, is closest to: A) 19 B) 71 C) 90 D) 109 E) 161 The dot product between the vector! A = 3î! 2 ĵ! 5 ˆk and the unit

### Chapter 5. A rock is twirled on a string at a constant speed. The direction of its acceleration at point P is A) B) P C) D)

A 1500 kg car travels at a constant speed of 22 m/s around a circular track which has a radius of 80 m. Which statement is true concerning this car? A) The velocity of the car is changing. B) The car is

### Physics 121, Sections 1 and 2, Winter 2011 Instructor: Scott Bergeson Exam #3 April 16 April 21, 2011 RULES FOR THIS TEST:

Physics 121, Sections 1 and 2, Winter 2011 Instructor: Scott Bergeson Exam #3 April 16 April 21, 2011 RULES FOR THIS TEST: This test is closed book. You may use a dictionary. You may use your own calculator

### PSI AP Physics I Work and Energy

PSI AP Physics I Work and Energy Multiple-Choice questions 1. A driver in a 2000 kg Porsche wishes to pass a slow moving school bus on a 4 lane road. What is the average power in watts required to accelerate

### LAHS Physics Semester 1 Final Practice Multiple Choice

LAHS Physics Semester 1 Final Practice Multiple Choice The following Multiple Choice problems are practice MC for the final. Some or none of these problems may appear on the real exam. Answers are provided

### Chapter 6 Energy and Oscillations

Chapter 6 Energy and Oscillations Conservation of Energy In this chapter we will discuss one of the most important and fundamental principles in the universe. Energy is conserved. This means that in any

### 12/5/2016. A. 10 km B. 15 km C. 20 km D. 30 km E. 35 km

A marathon runner runs at a steady 15 km/hr. When the runner is 7.5 km from the finish, a bird begins flying from the runner to the finish at 30 km/hr. When the bird reaches the finish line, it turns around

### UCM-Circular Motion. Base your answers to questions 1 and 2 on the information and diagram below.

Base your answers to questions 1 and 2 on the information and diagram The diagram shows the top view of a 65-kilogram student at point A on an amusement park ride. The ride spins the student in a horizontal

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

PH 105 Exam 2 VERSION A Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Is it possible for a system to have negative potential energy? A)

### Period: Date: Review - UCM & Energy. Page 1. Base your answers to questions 1 and 2 on the information and diagram below.

Base your answers to questions 1 and 2 on the information and diagram below. The diagram shows the top view of a -kilogram student at point A on an amusement park ride. The ride spins the student in a

### 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

### ConcepTest 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

### (A) 10 m (B) 20 m (C) 25 m (D) 30 m (E) 40 m

PSI AP Physics C Work and Energy (Algebra Based) Multiple Choice Questions (use g = 10 m/s 2 ) 1. A student throws a ball upwards from the ground level where gravitational potential energy is zero. At

### RELEASED. Go to next page. 2. The graph shows the acceleration of a car over time.

1. n object is launched across a room. How can a student determine the average horizontal velocity of the object using a meter stick and a calculator? The student can calculate the object s initial potential

### Phys101 Second Major-162 Zero Version Coordinator: Dr. Kunwar S. Saturday, March 25, 2017 Page: 1

Coordinator: Dr. Kunwar S. Saturday, March 25, 2017 Page: 1 Q1. Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 20 N, acting due east, and the other

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

PH 105 Exam 2 VERSION B Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A boy throws a rock with an initial velocity of 2.15 m/s at 30.0 above

### Physics I (Navitas) FINAL EXAM Fall 2015

95.141 Physics I (Navitas) FINAL EXAM Fall 2015 Name, Last Name First Name Student Identification Number: Write your name at the top of each page in the space provided. Answer all questions, beginning

### PHYS 1303 Final Exam Example Questions

PHYS 1303 Final Exam Example Questions 1.Which quantity can be converted from the English system to the metric system by the conversion factor 5280 mi f 12 f in 2.54 cm 1 in 1 m 100 cm 1 3600 h? s a. feet

### Extra credit assignment #4 It can be handed in up until one class before Test 4 (check your course outline). It will NOT be accepted after that.

Extra credit assignment #4 It can be handed in up until one class before Test 4 (check your course outline). It will NOT be accepted after that. NAME: 4. Units of power include which of the following?

### v (m/s) 10 d. displacement from 0-4 s 28 m e. time interval during which the net force is zero 0-2 s f. average velocity from 0-4 s 7 m/s x (m) 20

Physics Final Exam Mechanics Review Answers 1. Use the velocity-time graph below to find the: a. velocity at 2 s 6 m/s v (m/s) 1 b. acceleration from -2 s 6 c. acceleration from 2-4 s 2 m/s 2 2 4 t (s)

### Summer Physics 41 Pretest. Shorty Shorts (2 pts ea): Circle the best answer. Show work if a calculation is required.

Summer Physics 41 Pretest Name: Shorty Shorts (2 pts ea): Circle the best answer. Show work if a calculation is required. 1. An object hangs in equilibrium suspended by two identical ropes. Which rope

### End-of-Chapter Exercises

End-of-Chapter Exercises Exercises 1 12 are conceptual questions that are designed to see if you have understood the main concepts of the chapter. 1. Figure 11.21 shows four different cases involving a

### PHYSICS 221 SPRING 2014

PHYSICS 221 SPRING 2014 EXAM 2: April 3, 2014 8:15-10:15pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,

### (A) 10 m (B) 20 m (C) 25 m (D) 30 m (E) 40 m

Work/nergy 1. student throws a ball upward where the initial potential energy is 0. t a height of 15 meters the ball has a potential energy of 60 joules and is moving upward with a kinetic energy of 40

### PHYS 101 Previous Exam Problems. Kinetic Energy and

PHYS 101 Previous Exam Problems CHAPTER 7 Kinetic Energy and Work Kinetic energy Work Work-energy theorem Gravitational work Work of spring forces Power 1. A single force acts on a 5.0-kg object in such

### Page 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

### Physics-MC Page 1 of 29 Inertia, Force and Motion 1.

Physics-MC 2006-7 Page 1 of 29 Inertia, Force and Motion 1. 3. 2. Three blocks of equal mass are placed on a smooth horizontal surface as shown in the figure above. A constant force F is applied to block

### AP Physics Multiple Choice Practice Gravitation

AP Physics Multiple Choice Practice Gravitation 1. Each of five satellites makes a circular orbit about an object that is much more massive than any of the satellites. The mass and orbital radius of each

### AP Physics II Summer Packet

Name: AP Physics II Summer Packet Date: Period: Complete this packet over the summer, it is to be turned it within the first week of school. Show all work were needed. Feel free to use additional scratch

### Physics 201 Lecture 16

Physics 01 Lecture 16 Agenda: l Review for exam Lecture 16 Newton s Laws Three blocks are connected on the table as shown. The table has a coefficient of kinetic friction of 0.350, the masses are m 1 =

### Midterm Prep. 1. Which combination correctly pairs a vector quantity with its corresponding unit?

Name: ate: 1. Which combination correctly pairs a vector quantity with its corresponding unit?. weight and kg. velocity and m/s. speed and m/s. acceleration and m 2 /s 2. 12.0-kilogram cart is moving at

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Diagram 1 A) B - A. B) A - B. C) A + B. D) A B.

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) In the diagram shown, the unknown vector is 1) Diagram 1 A) B - A. B) A - B. C) A + B.

### BEFORE 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

### P11 Dynamics 1 Forces and Laws of Motion Bundle.notebook October 14, 2013

Dynamics 1 Definition of Dynamics Dynamics is the study of why an object moves. In order to understand why objects move, we must first study forces. Forces A force is defined as a push or a pull. Forces

### St. Joseph s Anglo-Chinese School

Time allowed:.5 hours Take g = 0 ms - if necessary. St. Joseph s Anglo-Chinese School 008 009 First Term Examination Form 6 ASL Physics Section A (40%) Answer ALL questions in this section. Write your

### Chapter 6 Study Questions Name: Class:

Chapter 6 Study Questions Name: Class: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. A feather and a rock dropped at the same time from

### Physics for Scientists and Engineers 4th Edition, 2017

A Correlation of Physics for Scientists and Engineers 4th Edition, 2017 To the AP Physics C: Mechanics Course Descriptions AP is a trademark registered and/or owned by the College Board, which was not

### Q16.: A 5.0 kg block is lowered with a downward acceleration of 2.8 m/s 2 by means of a rope. The force of the block on the rope is:(35 N, down)

Old Exam Question Ch. 5 T072 Q13.Two blocks of mass m 1 = 24.0 kg and m 2, respectively, are connected by a light string that passes over a massless pulley as shown in Fig. 2. If the tension in the string

### Exam #2, Chapters 5-7 PHYS 101-4M MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam #2, Chapters 5-7 Name PHYS 101-4M MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The quantity 1/2 mv2 is A) the potential energy of the object.

### On my honor, I have neither given nor received unauthorized aid on this examination.

Instructor(s): Profs. D. Reitze, H. Chan PHYSICS DEPARTMENT PHY 2053 Exam 2 April 2, 2009 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination.

### 1. The diagram below shows the variation with time t of the velocity v of an object.

1. The diagram below shows the variation with time t of the velocity v of an object. The area between the line of the graph and the time-axis represents A. the average velocity of the object. B. the displacement

### AP Physics C: Mechanics Practice (Newton s Laws including friction, resistive forces, and centripetal force).

AP Physics C: Mechanics Practice (Newton s Laws including friction, resistive forces, and centripetal force). 1981M1. A block of mass m, acted on by a force of magnitude F directed horizontally to the

### AP Physics 1: MIDTERM REVIEW OVER UNITS 2-4: KINEMATICS, DYNAMICS, FORCE & MOTION, WORK & POWER

MIDTERM REVIEW AP Physics 1 McNutt Name: Date: Period: AP Physics 1: MIDTERM REVIEW OVER UNITS 2-4: KINEMATICS, DYNAMICS, FORCE & MOTION, WORK & POWER 1.) A car starts from rest and uniformly accelerates

### PRACTICE TEST for Midterm Exam

South Pasadena AP Physics PRACTICE TEST for Midterm Exam FORMULAS Name Period Date / / d = vt d = v ot + ½ at d = v o + v t v = v o + at v = v o + ad v = v x + v y = tan 1 v y v v x = v cos v y = v sin

### Physics Exam 2 October 11, 2007

INSTRUCTIONS: Write your NAME on the front of the blue exam booklet. The exam is closed book, and you may have only pens/pencils and a calculator (no stored equations or programs and no graphing). Show

### Physics 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

### Name: Class: 903 Active Physics Winter Break Regents Prep December 2014

In this section use the following equations for velocity and displacement to solve: 1. In a drill during basketball practice, a player runs the length of the 30.meter court and back. The player does this