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### 43 True/False questions

1. law of conservation of momentumlaw that says that energy can be transformed from one kind to another but cannot be created or destroyed

2. momentumterm for the product of an object's mass and velocity

3. remains constantWhen the net force acting on a system is zero, the momentum of the whole system _____ _____.

4. nonconservative forceterm for a force whose energy change varies according to the length of its path

5. energyNewton's first law states that any material object has ____.

6. FalseTrue or False: Inertia conserves velocity in a system of objects.

7. law of conservation of mechanical energylaw that states that the total mechanical energy of a system is constant

8. potential energyterm for the energy an object acquires when it is exposed to a force

9. frictionIs momentum a vector quantity or a scalar quantity?

10. locations, pathIn a system where the motions of individual bodies are governed solely by a conservative force, the total kinetic and potential energy of the system is _____.

11. KE= 1/2mv^2_______ work is done when a force is applied in the direction opposite to motion.

12. elastic forceterm for a collision in which energy of motion may be transferred from one object to another, but remains energy of motion

13. PositiveA negative sign indicates that the force is ____ to motion.

14. oppositeA negative sign indicates that the force is ____ to motion.

15. work-energy theoremterm for energy of motion

16. impulseTrue or False: Inertia conserves velocity in a system of objects.

17. velocity changeA negative sign indicates that the force is ____ to motion.

18. positive, stop_______ work is done when a force is applied in the direction of motion.

19. momentumNewton's second law says that force is equal to the time rate of change in _____.

20. TrueTrue or False: Energy is conserved even where a nonconservative force like friction is operating.

21. kinetic energyterm for energy of motion

22. law of conservation of momentumlaw that says that energy can be transformed from one kind to another but cannot be created or destroyed

23. PEabbreviation for potential energy

24. massesIf two objects are to be accelerated to the same velocity in the same time, the required force depends on their ____.

25. F=-kxTrue or False: Inertia conserves velocity in a system of objects.

26. kinetic, potentialAs a ball is thrown up into the air, its ____ energy is converted to ____ energy.

27. mechanical energyterm for the energy an object acquires when it is exposed to a force

28. FalseTrue or False: There are a few known exceptions to the law of conservation of energy.

29. potential energyterm for energy of motion

30. elastic collisionterm for a collision in which energy of motion may be transferred from one object to another, but remains energy of motion

31. negative, stoppedKinetic energy is equal in magnitude to the _____ work required for one object to be _____ by another.

32. inertiaterm for the capacity to do work

33. frictionIs momentum a vector quantity or a scalar quantity?

34. Negative_______ work is done when a force is applied in the direction opposite to motion.

35. vectorIs momentum a vector quantity or a scalar quantity?

36. gravitational force and elastic forceAn object in the vicinity of the earth has ______ potential energy as a result of being under the influence of gravity.

37. Trueabbreviation for potential energy

38. gravitationalAn object in the vicinity of the earth has ______ potential energy as a result of being under the influence of gravity.

39. conservative forceterm for a force that undergoes the same energy change regardless of its path

40. dissipative forceterm for a force that undergoes the same energy change regardless of its path

41. isolated, uniformThe kinetic energy equation assumes that the object is ____ and has undergone _____ acceleration from rest.

42. constant_______ work is done when a force is applied in the direction of motion.

43. law of conservation of energylaw that says that energy can be transformed from one kind to another but cannot be created or destroyed