Practice Test Chapter 2 Forces and Motion

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1 Practice Test Chapter 2 Forces and Motion Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What happens when a moving bumper car hits a bumper car at rest? a. The car at rest gains momentum. b. The ground under the cars gains momentum. c. The moving car gains momentum. d. Momentum is not transferred. 2. Why does a crumpled piece of paper land before a flat sheet of paper? a. Gravity exerts more force on the crumpled paper. b. There is more air resistance on the flat paper. c. The crumpled paper is heavier. d. The crumpled paper is lighter. 3. Why do astronauts in an orbiting spacecraft seem weightless? a. Nothing produces gravity in space. b. The astronauts and the ship are in free fall together. c. The astronauts have no mass in space. d. Air resistance balances the force of gravity. 4. Which is NOT an action/reaction force pair? a. the forces between a bat and ball b. the force of gravity between a falling ball and Earth c. the force of propulsion and the force of gravity on an airplane d. the forces between a rabbit and the ground 5. Why does a ball thrown level to the ground move downward? a. There is no force on the ball. b. A force pulls ball in the direction it is thrown. c. Gravity pulls ball toward the ground. d. Forces pull on the ball in both directions. 6. Air resistance causes the speed of a falling object to a. increase. c. remain unchanged. b. decrease. d. become zero. 7. A feather is in free fall when the force of gravity a. is greater than the force of air resistance. c. is equal to the force of air resistance. b. is less than the force of air resistance. d. is the only force acting on it. 8. A falling object s terminal velocity is reached when the force of gravity a. is greater than the force of air resistance. c. is equal to the force of air resistance. b. is less than the force of air resistance. d. is the only force acting on the object. 9. A pitched baseball gets its horizontal motion from a. the force of gravity. c. air resistance. b. the force of the hand throwing it. d. projectile motion. 10. A sled sliding on a flat, icy surface with a constant velocity is best described by

2 a. Newton s first law of motion for objects at rest. 11. A car stopped at a traffic light illustrates a. Newton s first law of motion for objects at rest. 12. A rocket under constant force, whose acceleration increases as its mass decreases, illustrates a. Newton s first law of motion for objects at rest. Matching a. terminal velocity d. centripetal force b. free fall e. air resistance c. projectile motion f. orbit 13. the path of one object around another in space 14. an unbalanced force that causes objects to move in a circular path 15. the motion of a body when only the force of gravity is acting on the body 16. the curved path of a thrown object near Earth s surface 17. the constant velocity of a falling object when the force of gravity is balanced by air resistance 18. the force that opposes the motion of objects through air a. Newton s first law of motion c. Newton s third law of motion b. Newton s second law of motion d. inertia 19. The tendency of all objects is to resist any change in motion. 20. An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force. 21. All forces act in pairs. 22. The acceleration of an object depends on its mass and the amount of force applied. a. the law of conservation of momentum d. Newton s third law of motion b. Newton s first law of motion e. terminal velocity c. Newton s second law of motion f. inertia 23. This is the constant velocity of a falling object when the force of gravity is balanced by the force of air resistance. 24. The acceleration of an object depends on the mass of the object and the amount of force applied.

3 25. An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force. 26. All objects tend to resist any change in motion. 27. All forces act in pairs. a. the law of conservation of momentum c. inertia b. terminal velocity d. projectile motion 28. the curved path something follows when it is thrown near Earth s surface 29. the velocity of a falling object when gravity is balanced by air resistance 30. the tendency of all objects to resist any change in motion 31. states that when objects collide, the total amount of momentum stays the same a. inertia c. unbalanced force b. equal and opposite force d. friction 32. This causes a change in the motion of an object. 33. This increases with an object s mass, making it harder to change the velocity of the object. 34. This force between a sliding object and a surface causes the sliding object to slow down. 35. This is the force exerted by a bat on a baseball, with respect to the baseball s force against the bat.

4 Practice Test Chapter 2 Forces and Motion Answer Section MULTIPLE CHOICE 1. ANS: A PTS: 1 DIF: 1 REF: 3 2. ANS: B PTS: 1 DIF: 1 REF: 1 3. ANS: B PTS: 1 DIF: 1 REF: 1 4. ANS: C PTS: 1 DIF: 1 REF: 2 5. ANS: C PTS: 1 DIF: 1 REF: 1 6. ANS: B PTS: 1 DIF: 1 REF: 1 7. ANS: D PTS: 1 DIF: 1 REF: 1 8. ANS: C PTS: 1 DIF: 1 REF: 1 9. ANS: B PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: 2 MATCHING 13. ANS: F PTS: 1 DIF: 1 REF: ANS: D PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: E PTS: 1 DIF: 1 REF: ANS: D PTS: 1 DIF: 1 REF: 2

5 20. ANS: A PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: E PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: F PTS: 1 DIF: 1 REF: ANS: D PTS: 1 DIF: 1 REF: ANS: D PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: D PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: 2

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