1. M602 Review Questions

2. Unit 2

3. 1. What do we call the energy that arises from the forces which bind the atoms together in a molecule?

4. Chemical energy.

5. 2. What do we call a machine which consists of many related parts.

6. A complex machine.

7. 3. What do we call the action to push or squeeze something together or make something more compact?

8. Compress.

9. 4. What do we call a reduction in size?

10. Contraction.

11. 5. What do we call it when we twist something out of shape by applying torque?

12. To distort.

13. 6. What do we call material that can change shape and size and return to its original shape and size?

14. Elastic.

15. 7. What do we call it to put force on or against an object?

16. To exert.

17. 8. What do we call it to increase in size, scope, or volume due to molecular expansion?

18. To expand.

19. 9. What do we call any substance that can flow?

20. A fluid.

21. 10. What do we call a substance with an indefinite shape and indefinite volume?

22. A gas.

23. 11. What do we call the kinetic energy that results from molecular motion which can be transferred from on material to another?

24. Heat.

25. 12. What law is it that states that the distortion of any elastic body is directly proportional to the distorting force applied to it?

26. Hooke’s Law.

27. 13. What do we call a substance that has an indefinite shape but a definite volume?

28. A liquid.

29. 14. What do we call the energy that expresses itself in mechanical movement or the physical production of work and is a combination of kinetic and potential energy?

30. Mechanical energy.

31. 15. What word pertains to the smallest particle of an element or compound that can exist in the free state and still retain the characteristics of the substance?

32. Molecular.

33. 16. What do we call the standard of measurement for the work equivalent to foot- pounds?

34. Newton-meters.

35. 17. What do we call the standard of measurement of force?

36. Pounds.

37. 18. What do we call a device which transmits the application of force into useful work?

38. A simple machine.

39. 19. What do we call a substance having a definite shape and definite volume?

40. A solid.

41. 20. What do we call the energy that is actually contained within an object? It is also called stored energy?

42. Potential energy.

43. 21. What do we call the total energy of an object or the sum of its kinetic and potential energies?

44. Thermal energy.

45. 22. What do we call the change of energy from one form to another?

46. The transformation of energy.