Chapter 5 Matter in Motion Focus Notes
|
|
- Lucas Maurice Greene
- 6 years ago
- Views:
Transcription
1 Chapter 5 Matter in Motion Focus Notes
2 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 traveled divided by the time interval during which the motion occurred (S=D/T). For example: 25 mph (miles per hour) or 10 m/s (meters per second) Velocity: the speed of an object in a particular direction. For example: 25 mph NORTH or 10 m/s SOUTH Acceleration: The rate at which velocity changes over time; an object accelerates if its speed, direction, or both change.
3 Section 1 What is a reference point? An object that appears to stay in place in relation to motion. Describe the motion of an object by position of the object in relation to a reference point. If you are riding in a car, how do you know you are moving? What stays still while you move? Trees, Buildings, etc. Identify the 2 factors that determine speed. Distance and Time What is the SI unit for speed? Meters per second (written m/s); Can also be km/h
4 Section 1 What formula do you use to calculate average speed? Average Speed = TOTAL distance/ TOTAL time. Calculate the average speed in the 3 questions below: Kira jogs to a store 72 m away in a time of 36 s. What is Kira s average speed? 72/36 = 2 m/s If you travel 7.5 km and walk for 1.5 h, what is your average speed? 7.5/1.5 = 5 km/h An airplane traveling from San Francisco to Chicago travels 1,260 km in 3.5 h. What is the airplane s average speed? 1,260/3.5 = 360 km/h
5 Section 1 What are the 2 ways velocity can change? When speed or direction change. What is resultant velocity? How is it calculated if velocities are moving in the same direction? In opposite directions? Resultant velocities occur when velocities are combined. Velocities in the SAME direction are ADDED together. With Velocities traveling in OPPOSITE directions you TAKE THE DIFFERENCE and keep the directionality of the HIGHER velocity! Explain the difference between speed and velocity. Speed is calculated by dividing DISTANCE by TIME; Velocity IS speed, but with a DIRECTION on the end.
6 Section 1 What is an increase in velocity typically called? How about a decrease in velocity? Increase in velocity is called POSITIVE acceleration. Decrease in velocity is called NEGATIVE acceleration (or deceleration). Complete the statement: The faster the velocity changes, the greater the ACCELERATION is. Analyze the relationship between velocity and acceleration. As an objects VELOCITY changes (either by changing direction or speed) an object ACCELERATES! VELOCITY CAUSES ACCELERATION!
7 Section 1 What is the formula for calculating average acceleration? Average Acceleration = Final Velocity-Starting Velocity/Time it takes to change velocity. What is the average acceleration of a subway train that speeds up from 9.6 m/s to 12 m/s in 0.8 s on a straight section of track? 12 m/s 9.6 m/s / 0.8 s = 3 m/s 2 (Since Velocity is expressed in m/s and Time is expressed in seconds, the Acceleration unit is m/s 2 or meters per second per second!) Why is it more helpful to know a tornado s velocity rather than its speed? Velocity includes direction. In the case of a tornado, you need to know the speed, but the direction is more important so people can evacuate out of the path.
8 Section 1 Draw a graph showing speed. Draw a graph showing acceleration.
9 Section 1 Explain centripetal acceleration. Acceleration in a circular motion; it is CONSTANTLY accelerating WHY?? It is CONSTANTLY changing direction!
10 Section 2 Define the following terms: Force, Newton, and Net Force Force: any push or pull exerted on an object in order to change the motion of the object; it has size and direction Newton: the SI unit for force, symbol N Net Force: the combination of all of the forces acting on an object. What unit is used to express force? Newton 1 Newton = 100 grams?
11 Section 2 Describe forces, and explain how forces act on objects. Forces act on ALL objects! For any push to occur, something has to receive the push. You can t push nothing! However, not all forces cause motion to occur (gravity). How do you calculate Net Force when forces are acting in the same direction? In opposite directions? Net forces acting in the SAME direction are ADDED together. While Net Forces acting in OPPOSITE directions - take the difference and keep the DIRECTION of the HIGHER force (just like Resultant Velocities).
12 Section 2 Create a table comparing the characteristics of balanced and unbalanced forces. Balanced Forces Net Force = ZERO Newtons Does not cause a change in motion to a moving object Does not cause a nonmoving object to start moving. Unbalanced Forces Net Force does NOT = ZERO Newtons Cause a change in motion, like speed or direction cause acceleration! Necessary for an object to change motion or move.
13 Section 2 The force of your desk pushing up on your book is balanced by what other force pushing down? GRAVITY! Describe 2 ways that unbalanced forces cause changes in motion. Causing the direction or speed to change causing Acceleration to occur! A boy pulls a wagon with a force of 6 N east as another boy pushes it with a force of 4 N east. What is the net force? 6 N east + 4 N east = 10 N east
14 Section 3 Define the following term: Friction Friction: A force that opposes motion between 2 surfaces that are in contact. Explain why friction occurs. Friction occurs because the surface of any object is rough.
15 Section 3 Draw a picture showing friction between 2 objects.
16 Section 3 Why is friction greater between surfaces that are rough? Rough surfaces have more microscopic hills and valleys. What is the relationship between force and friction? The greater the force, the greater the friction. What are the 2 types of friction? Kinetic and Static Friction
17 Section 3 Sliding Friction Rolling Friction
18 Section 3 Explain how static friction works on a book sitting on a table. There is no friction between the book and table when no force is being applied. When a small force is applied, the book doesn t move because it has not overcome the frictional force. When a large force is applied, the book moves since the force applied has overcome the frictional force. List 2 ways that friction can be helpful. Brakes on a car; Allows you to write on your paper! List 2 ways that friction can be harmful. Engine parts experiencing friction will ruin your car; Friction by wind or water causes erosion.
19 Section 3 How can friction be reduced? By adding a lubricant; changing from sliding to rolling friction. How can friction be increased? Make surfaces rougher (sand paper); increase the force applied.
20 Section 4 Define the following terms: Gravity, Weight, and Mass Gravity: a force of attraction between objects that is due to their masses Weight: measure of gravitational force exerted on an object; varies by location (unit is Newton) Mass: amount of matter in an object (unit is Gram/Kilogram); does NOT change based on location
21 Section 4 Describe gravity and its effects on matter. All matter has mass. Gravity is a result of mass. So, all matter is affected by gravity. ALL objects have a gravitational attraction to each other YES, ALL OBJECTS! We don t notice this attraction because it is so small that it appears insignificant. Why must you exert a force to pick up an object? What must you overcome? You must overcome GRAVITY to lift any object. Who is known as the father of gravity? What is the story as to how gravity was discovered? Isaac Newton. The Falling Apple story Newton sat under a tree and saw an apple fall and thought there had to be forces at work he called the force gravity.
22 Section 4 What are the 2 parts of the Universal Law of Gravitation? Part 1: Gravitational force Increases as MASS Increases. Part 2: Gravitational force Decreases as DISTANCE Increases. Why is the Universal Law of Gravitation universal? It is valid EVERYWHERE in the UNIVERSE!
23 Section 4 Draw a picture explaining the 2 parts of the Universal Law of Gravitation. DISTANCE MASS
24 Section 4 How does mass effect gravitational force? Larger mass = Larger Gravitational force; Smaller mass = Smaller Gravitational force Create a table comparing weight and mass. Weight Mass Changes based on location Always stays the same Measured in Newtons Measured in Grams
25 Section 4 How does the mass of an object relate to the gravitational force that the object exerts on other objects? The larger the mass, the larger the force and vice versa. The gravitational force on Jupiter is approximately 2.3 times the gravitational force on Earth. If an object has a mass of 70 kg and a weight of 686 N on Earth, what would the object s mass and weight on Jupiter be? Mass = 70 kg (stays the same) ; Weight = 2.3 X 686 N = N How do you explain to someone who has no knowledge of gravity that gravity exists in space? Gravity holds the planets in orbit around the sun. Why does your weight change if you landed on Mars, but your mass does not? Weight is a measure of gravitational force, while mass is constant.
26 Wrapping Up Explain why it is important for airplane pilots to know wind velocity and not just wind speed during a flight. Pilots need to know the directionality of the wind as well to be able to adjust during a flight. How is it possible to be accelerating and traveling at a constant speed? A change in direction (change in velocity) causes acceleration.
27 Wrapping Up You observe the effects of gravity every day. What 2 quantities does gravitational force depend on? How do those quantities affect the size of the gravitational force between 2 objects? Gravitational Force depends on the mass of objects and the distance between the objects. Gravitational force increases as the mass of one or both of the objects increases. Gravitational force decreases as the distance between the objects increases.
28 Wrapping Up A downhill skier has her skis sharpened and waxed before every race. What effect would this have on her performance? Reduces the friction. How will the motion of a ball rolling on the ground change if the ball encounters a frictional force that opposes its motion? The ball will slow down.
2. What is the force weight of a 45 kg desk? 3. Give a scenario example for each of Newton s Laws.
Catalyst 1.What is the unit for force? Newton (N) 2. What is the force weight of a 45 kg desk? 3. Give a scenario example for each of Newton s Laws. HANDS UP!! 441 N 4. What is net force? Give an example.
More informationChapter 5. Preview. Section 1 Measuring Motion. Section 2 What Is a Force? Section 3 Friction: A Force That Opposes Motion
Matter in Motion Preview Section 1 Measuring Motion Section 2 What Is a Force? Section 3 Friction: A Force That Opposes Motion Section 4 Gravity: A Force of Attraction Concept Mapping Section 1 Measuring
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 informationForces. Net force is the combination all of the forces acting on an object. All forces have both size and direction.
Objectives Forces Describe forces, and explain how forces act on objects. Determine the net force when more than one force is acting on an object. Compare balanced and unbalanced forces. Describe ways
More informationChapter 2. Forces & Newton s Laws
Chapter 2 Forces & Newton s Laws 1st thing you need to know Everything from chapter 1 Speed formula Acceleration formula All their units There is only 1 main formula, but some equations will utilize previous
More informationDirected Reading A. Section: Gravity: A Force of Attraction. force of. THE EFFECTS OF GRAVITY ON MATTER. of.
Skills Worksheet Directed Reading A Section: Gravity: A Force of Attraction 1. The force of attraction between two objects that is due to their masses is the force of. 2. Why do astronauts on the moon
More informationDirected Reading A. Section: Friction: A Force That Opposes Motion THE SOURCE OF FRICTION. Skills Worksheet
Skills Worksheet Directed Reading A Section: Friction: A Force That Opposes Motion Write the letter of the correct answer in the space provided. (pp. 350 355) 1. Which of the following is a force that
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 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 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 informationForces and Motion Study Guide
Forces and Motion Study Guide Name 8 th Grade PSI 1. A snail travels 10 m in 3000 seconds. What is the snail s average speed? a. 60000 m/s b. 0.02 m/s c. 600 m/s d. 0.003 m/s 2. A blimp travels at 3 m/s
More informationVocabulary and Section Summary A
Skills Worksheet Vocabulary and Section Summary A Measuring Motion VOCABULARY In your own words, write a definition of the following terms in the space provided. 1. motion 2. average speed 3. velocity
More informationA 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
More informationPhysical Science Forces and Motion Study Guide ** YOU MUST ALSO USE THE NOTES PROVIDED IN CLASS TO PREPARE FOR THE TEST **
Physical Science Forces and Motion Study Guide ** YOU MUST ALSO USE THE NOTES PROVIDED IN CLASS TO PREPARE FOR THE TEST ** 1. What is a force? A push or a pull on an object. Forces have size and direction.
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 informationIsaac Newton was a British scientist whose accomplishments
E8 Newton s Laws of Motion R EA D I N G Isaac Newton was a British scientist whose accomplishments included important discoveries about light, motion, and gravity. You may have heard the legend about how
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 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 informationIsaac Newton was a British scientist whose accomplishments
E8 Newton s Laws of Motion R EA D I N G Isaac Newton was a British scientist whose accomplishments included important discoveries about light, motion, and gravity. You may have heard the legend about how
More informationSection 1: Measuring Motion. Preview Key Ideas Bellringer Observing Motion Speed and Velocity Calculating Speed Math Skills Graphing Motion
Section 1 Section 1: Measuring Motion Preview Key Ideas Bellringer Observing Motion Speed and Velocity Calculating Speed Math Skills Graphing Motion Section 1 Key Ideas How is a frame of reference used
More information3 Friction: A Force That Opposes Motion
CHAPTER 1 SECTION Matter in Motion 3 Friction: A Force That Opposes Motion BEFORE YOU READ After you read this section, you should be able to answer these questions: What is friction? How does friction
More informationForce - a push or a pull A force described by its strength and by the direction in which it acts The SI unit for force is the newton (N)
Forces Force - a push or a pull A force described by its strength and by the direction in which it acts The SI unit for force is the newton (N) The direction and strength of forces can be represented by
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 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 information8. The graph below shows a beetle s movement along a plant stem.
Name: Block: Date: Introductory Physics: Midyear Review 1. Motion and Forces Central Concept: Newton s laws of motion and gravitation describe and predict the motion of most objects. 1.1 Compare and contrast
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 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 information5 th Grade Force and Motion Study Guide
Name: Date of Test: Vocabulary 5 th Grade Force and Motion Study Guide Motion- a change in position relative to a point of reference, a change in speed, or a change in distance. Point of Reference (Reference
More informationTest Corrections Use these concepts to explain corrected answers. Make sure you apply the concepts to the specific situation in each problem.
Test Corrections Use these concepts to explain corrected answers. Make sure you apply the concepts to the specific situation in each problem. Circular Motion Concepts When an object moves in a circle,
More informationFORCE. The 4 Fundamental Forces of Nature
FORCE - Force a push or pull. Results only from interaction with another object. Without interaction, forces cannot be present. - Measured in Newtons (N) 1 Newton is the amount of force required to give
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 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 informationGravity and Orbits. Objectives. Clarify a number of basic concepts. Gravity
Gravity and Orbits Objectives Clarify a number of basic concepts Speed vs. velocity Acceleration, and its relation to force Momentum and angular momentum Gravity Understand its basic workings Understand
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 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 informationDynamics-Friction. 1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface?
1. Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface? Base your answers to questions 2 and 3 on the information A student and the waxed skis she
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 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 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 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 informationChapter Review USING KEY TERMS UNDERSTANDING KEY IDEAS. Skills Worksheet. Multiple Choice
Skills Worksheet Chapter Review USING KEY TERMS Complete each of the following sentences by choosing the correct term from the word bank. mass gravity friction weight speed velocity net force newton 1.
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 informationChapter 6 Dynamics I: Motion Along a Line
Chapter 6 Dynamics I: Motion Along a Line Chapter Goal: To learn how to solve linear force-and-motion problems. Slide 6-2 Chapter 6 Preview Slide 6-3 Chapter 6 Preview Slide 6-4 Chapter 6 Preview Slide
More informationCh. 2 The Laws of Motion
Ch. 2 The Laws of Motion Lesson 1 Gravity and Friction Force - A push or pull we pull on a locker handle push a soccer ball or on the computer keys Contact force - push or pull on one object by another
More informationForce - a push or a pull The SI unit for force is the newton (N)
Forces Force - a push or a pull The SI unit for force is the newton (N) Arrows are used to show the strength of a force and the direction in which it acts; the longer the arrow, the stronger the force
More information1. Two forces are applied to a wooden box as shown below. Which statement best describes the effect these forces have on the box?
1. Two forces are applied to a wooden box as shown below. Which statement best describes the effect these forces have on the box? A. The box does not move. B. The box moves to the right. C. The box moves
More informationChapter 5 The Force Vector
Conceptual Physics/ PEP Name: Date: Chapter 5 The Force Vector Section Review 5.1 1. Indicate whether each of the following units of measurement are scalar or vector units: Speed _scalar time scalar mass
More informationPhysics B Newton s Laws AP Review Packet
Force A force is a push or pull on an object. Forces cause an object to accelerate To speed up To slow down To change direction Unit: Newton (SI system) Newton s First Law The Law of Inertia. A body in
More informationPeriod: 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
More information6. Which graph best represents the motion of an object that is not in equilibrium as it travels along a straight line? A) B)
1. The data table below lists the mass and speed of four different objects. 6. Which graph best represents the motion of an object that is not in equilibrium as it travels along a straight line? Which
More information3. What type of force is the woman applying to cart in the illustration below?
Name: Forces and Motion STUDY GUIDE Directions: Answer the following questions. 1. What is a force? a. A type of energy b. The rate at which an object performs work c. A push or a pull d. An object that
More informationFORCES AND MOTION UNIT TEST. Multiple Choice: Draw a Circle Completely around the ONE BEST answer.
Name: Date: Period: FORCES AND MOTION UNIT TEST Multiple Choice: Draw a Circle Completely around the ONE BEST answer. 1. A force acting on an object does no work if a. a machine is used to move the object.
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 informationLesson 14: Friction. a) Fill in the table that follows by constructing a force diagram for the block (the system) for these five situations.
Lesson 14: Friction 14.1 Observe and Find a Pattern Perform the following experiment: Rest a wooden block (or some other object, like your shoe) on a table. Attach a large spring scale to a string attached
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 information1. A train moves at a constant velocity of 90 km/h. How far will it move in 0.25 h? A. 10 km B km C. 25 km D. 45 km E. 50 km
Name: Physics I Mid Term Exam Review Multiple Choice Questions Date: Mr. Tiesler 1. A train moves at a constant velocity of 90 km/h. How far will it move in 0.25 h? A. 10 km B. 22.5 km C. 25 km D. 45 km
More information5. 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
More informationThe Laws of Motion. Newton s Second Law
The Laws of Motion Newton s Second Law Key Concepts What is Newton s second law of motion? How does centripetal force affect circular motion? What do you think? Read the two statements below and decide
More informationDifferent Forces Act on Objects
Have you heard the story about Isaac Newton sitting under an apple tree? According to the story, an apple fell from a tree and hit him on the head. From that event, it is said that Newton discovered the
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 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 informationForce, Friction & Gravity Notes
Force, Friction & Gravity Notes Key Terms to Know Speed: The distance traveled by an object within a certain amount of time. Speed = distance/time Velocity: Speed in a given direction Acceleration: The
More informationName 09-MAR-04. Work Power and Energy
Page 1 of 16 Work Power and Energy Name 09-MAR-04 1. A spring has a spring constant of 120 newtons/meter. How much potential energy is stored in the spring as it is stretched 0.20 meter? 1. 2.4 J 3. 12
More informationName: Class: Date: GRAVITY. 1. Gravity is the force of between all objects. It increases when items are or together.
Name: Class: Date: GRAVITY 1. Gravity is the force of between all objects. It increases when items are or together. 2. The moon has the gravity of Earth. Jupiter has the gravity of Earth. 3. List these
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 informationPhysics 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
More informationChapter 3, Section 3
Chapter 3, Section 3 3 What is force? Motion and Forces A force is a push or pull. Sometimes it is obvious that a force has been applied. But other forces aren t as noticeable. What Is a Force? A force......
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 informationDescribing Motion. Motion. Are distance and time important in describing running events at the track-and-field meets in the Olympics?
Describing Motion Section 1 Motion Are distance and time important in describing running events at the track-and-field meets in the Olympics? Comstock/JupiterImages Describing Motion Section 1 Motion Distance
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 informationForces. A force is a push or a pull on an object
Forces Forces A force is a push or a pull on an object Arrows are used to represent forces. The direction of the arrow represent the direction the force that exist or being applied. Forces A net force
More informationUnit 6 Forces and Pressure
Unit 6 Forces and Pressure Lesson Objectives: Mass and weight Gravitational field and field strength describe the effect of balanced and unbalanced forces on a body describe the ways in which a force may
More informationLaws of Force and Motion
Does anything happen without a cause? Many people would say yes, because that often seems to be our experience. A cup near the edge of a table suddenly crashes to the floor. An apple falls from a tree
More informationFriction Can Be Rough
10.1 Observe and Find a Pattern Friction Can Be Rough Observe the following experiment: Rest a brick on a rough surface. Tie a string around the brick and attach a large spring scale to it. Pull the scale
More informationMake sure you know the three laws inside and out! You must know the vocabulary too!
Newton's Laws Study Guide Test March 9 th The best plan is to study every night for 15 to 20 minutes. Make sure you know the three laws inside and out! You must know the vocabulary too! Newton s First
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 informationForce, Motion, and Sound
Force, Motion, and Sound Physics 160, Spring 2006 Galileo (1564-1642) 1642) Isaac Newton (1643-1727) 1727) Uniform Motion x = 1cm 2cm 3cm 4cm 5cm 6cm 7cm 8cm O t = 1s 2s 3s 4s 5s 6s 7s 8s This picture
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 information5. The graph represents the net force acting on an object as a function of time. During which time interval is the velocity of the object constant?
1. A 0.50-kilogram cart is rolling at a speed of 0.40 meter per second. If the speed of the cart is doubled, the inertia of the cart is A) halved B) doubled C) quadrupled D) unchanged 2. A force of 25
More informationBroughton High School of Wake County
Name: Section: 1 Section 1: Which picture describes Newton s Laws of Motion? 5. Newton s Law 1. Newton s Law 2. Newton s Law 6. Newton s Law 3. Newton s Law 7. Newton s Law 4. Newton s Law 8. Newton s
More information1 1. A spring has a spring constant of 120 newtons/meter. How much potential energy is stored in the spring as it is stretched 0.20 meter?
Page of 3 Work Power And Energy TEACHER ANSWER KEY March 09, 200. A spring has a spring constant of 20 newtons/meter. How much potential energy is stored in the spring as it is stretched 0.20 meter?. 2.
More informationMore examples: Summary of previous lecture
More examples: 3 N Individual Forces Net Force 5 N 37 o 4 N Summary of previous lecture 1 st Law A net non zero force is required to change the velocity of an object. nd Law What happens when there is
More informationReview 3: Forces. 1. Which graph best represents the motion of an object in equilibrium? A) B) C) D)
1. Which graph best represents the motion of an object in equilibrium? A) B) C) D) 2. A rock is thrown straight up into the air. At the highest point of the rock's path, the magnitude of the net force
More informationForces and Newton s Laws
chapter 3 section 1 Forces Forces and Newton s Laws What You ll Learn how force and motion are related what friction is between objects the difference between mass and weight Before You Read When you hit
More information10-2: Friction, Gravity, and Elastic Forces. 8 th Grade Physical Sciences
8 th Grade Physical Sciences Purpose Students will be able to: 1. Identify factors that determine the friction force between two objects. 2. Identify the factors that affect the gravitational force between
More informationForces. Unit 2. Why are forces important? In this Unit, you will learn: Key words. Previously PHYSICS 219
Previously Remember From Page 218 Forces are pushes and pulls that can move or squash objects. An object s speed is the distance it travels every second; if its speed increases, it is accelerating. Unit
More informationForces and Motion Forces Gravity Net Forces Free Body Diagrams
Forces and Motion Forces Gravity Net Forces Free Body Diagrams Misc. 200 200 200 200 200 400 400 400 400 400 600 600 600 600 600 800 800 800 800 800 1000 1000 1000 1000 1000 FINAL JEOPARDY Go To Score
More informationMass the amount of matter in an object. Mass of an object is constant throughout the universe
Mass the amount of matter in an object. Mass of an object is constant throughout the universe Weight is a force, it is the measure of how strong gravity pulls on that matter. A force that produces no change
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 informationUnit 4 Forces (Newton s Laws)
Name: Pd: Date: Unit Forces (Newton s Laws) The Nature of Forces force A push or pull exerted on an object. newton A unit of measure that equals the force required to accelerate kilogram of mass at meter
More information12.1 Forces and Motion Notes
12.1 Forces and Motion Notes What Is a Force? A is a push or a pull that acts on an object. A force can cause a object to, or it can a object by changing the object s speed or direction. Force can be measured
More informationMidterm α, Physics 1P21/1P91
Midterm α, Physics 1P21/1P91 Prof. D. Crandles March 1, 2013 Last Name First Name Student ID Circle your course number above No examination aids other than those specified on this examination script are
More informationHow Do Objects Move? Describing Motion. Different Kinds of Motion
How Do Objects Move? Describing Motion Different Kinds of Motion Motion is everywhere. The planets are in motion around the Sun. Cars are in motion as they are driven down the street. There s even motion
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 informationProgressive Science Initiative. Click to go to website:
Slide 1 / 129 New Jersey Center for Teaching and Learning Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and
More information7.2. Assessment in Diploma Program Physics 281
7.2. Assessment in Diploma Program Physics 281 figures in 100 kmh 1, we round the answer to two significant figures. Note that we have to use at least one significant figure more than the final result
More informationChapter: The Laws of Motion
Table of Contents Chapter: The Laws of Motion Section 1: Newton s Second Law Section 2: Gravity Section 3: The Third Law of Motion 1 Newton s Second Law Force, Mass, and Acceleration Newton s first law
More informationChapter 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
More informationForces 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
More informationMotion. Definition a change of position
Potential energy Definition stored energy an object has because of its position Characteristics the higher up an object is, the greater its potential energy Example book sitting on the desk Kinetic energy
More information