* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Document
Survey
Document related concepts
Brownian motion wikipedia , lookup
Fictitious force wikipedia , lookup
N-body problem wikipedia , lookup
Modified Newtonian dynamics wikipedia , lookup
Centrifugal force wikipedia , lookup
Hunting oscillation wikipedia , lookup
Electromagnetic mass wikipedia , lookup
Newton's theorem of revolving orbits wikipedia , lookup
Center of mass wikipedia , lookup
Centripetal force wikipedia , lookup
Rigid body dynamics wikipedia , lookup
Work (physics) wikipedia , lookup
Relativistic angular momentum wikipedia , lookup
Classical mechanics wikipedia , lookup
Seismometer wikipedia , lookup
Relativistic mechanics wikipedia , lookup
Classical central-force problem wikipedia , lookup
Transcript
Name ______________________________ Class __________________ Date __________________ Chapter Review USING KEY TERMS Complete each of the following sentences by choosing the correct term from the word bank. mass friction Law of conservation of momentum inertia momentum 1. An object in motion has______________________, so it tends to stay in motion. 2. The _____________________________ ______ says that when objects contact each other, momentum is exchanged but never lost. 3. ______________________ is the force that opposes motion. 4. ______________________ is a property of moving objects that depends on mass and velocity. 5. ______________________ is a measure of inertia. Multiple Choice _____ 6. When a soccer ball is kicked, the action and reaction forces do not cancel each other out because a. the forces are not equal in size. b. the forces act on different objects. c. the forces act at different times. d. All of the above ______ 7. .Newton’s first law of motion applies to a. moving objects. b. objects that are not moving. c. objects that are accelerating. d. Both (a) and (b) _____ 8. To accelerate two objects at the same rate, the force used to push the object that has more mass should be a. smaller than the force used to push the object that has less mass. b. larger than the force used to push the object that has less mass. c. the same as the force used to push the object that has less mass. d. equal to the object’s weight. _____ 9. A golf ball and a bowling ball are moving at the same velocity. Which of the two has more momentum? a. The golf ball has more momentum because it has less mass. b. The bowling ball has more momentum because it has more mass. c. They have the same momentum because they have the same velocity. d. There is not enough information to determine the answer. 10. Why can friction make observing Newton’s first law of motion difficult? _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 30 Forces and Motion Name ______________________________ Class __________________ Date __________________ 11 Which law explains why you get pressed against the right side of the car when the driver makes a left turn? ____________________________________________ Explain why this happens _______________________________________________________________________________ _____________________________________________________________________________ _________________________________________________________________________ 12. Which law predicts why a baseball will go further than a bowling ball if you throw it with the same force? ___________________________________________ Explain why this happens _______________________________________________________________________________ _____________________________________________________________________________ _______________________________________________________________________ 13. Applying Concepts Suppose you are standing on a skateboard or on in-line skates and you toss a backpack full of heavy books toward your friend. What do you think will happen to you? Explain your answer in terms of Newton’s third law of motion. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ INTERPRETING GRAPHICS 14. The picture below shows a toy called Newton’s Cradle. If you pull one sphere up and release it, it hits the spheres at the bottom and comes to a stop. In the same instant, the sphere on the other side swings up and repeats the cycle. How does conservation of momentum explain how this toy works? _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 31 Forces and Motion Name ______________________________ Class __________________ Date __________________ _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 32 Forces and Motion