1. WARNING: THESE ARE NOT IN ORDER! THEY ARE ALSO NOT MULTIPLE CHOICE!
FINAL EXAM REVIEW
SAMPLE QUESTIONS!
WARNING: THESE ARE NOT IN ORDER! THEY ARE ALSO NOT MULTIPLE CHOICE!

2. SELF-SCORING
Ch 5: 6 Q
Ch 6: 6 Q
Ch 8: 8Q
Ch 9: 5 Q
Ch 10: 3Q
Ch 20: 5 Q
Ch 22: 7 Q
Ch 23: 4 Q
Ch 17: 6 Q
Keep track! The chapter(s) you don’t do well on should be your main area(s) to study!

3. What happens to the strength of an object’s gravity as its mass increases?
It also increases (Ch 6)

4. Holding an item over your head (Ch 8)
What would be an example of work not being done?
Holding an item over your head (Ch 8)

5. A 0. 5 kg book is sitting on a desk that is 0. 75 m high
A 0.5 kg book is sitting on a desk that is 0.75 m high. What is the GPE?
3.675 J (Ch 9)

6. Which type of circuit is found in houses (series or parallel)?
Parallel (Ch 20)

7. If red, orange, green, blue and violet are absorbed by a material, what color is it?
Yellow (Ch 22)

8. Where in a pendulum would the highest kinetic energy be?
At the bottom (Ch 9)

9. How does pitch change in the Doppler effect?
Higher pitch as it approaches you, lower pitch as it leaves you (Ch 17)

10. What type of circuit would this be?
Parallel (Ch 17)

11. How much heat is absorbed by a 70g sample of water when it goes from 20-30°C? Water has a specific heat of 4184 J/g°C.
J (Ch 10)

12. Curved/exponential/non-linear (Ch 5)
What would acceleration look like on a D-T graph?
Curved/exponential/non-linear (Ch 5)

13. Less Gravity…Weight = mass * gravity (Chapter 6)
Why do you weigh less on the moon?
Less Gravity…Weight = mass * gravity (Chapter 6)

14. They will all stop working (Ch 17)
If there is a break in a series circuit, what will happen to the items using the current?
They will all stop working (Ch 17)

15. What type of mirror allows light rays to converge?
Concave mirror (Ch 23)

16. You are able to see a rainbow because light is ____ when it hits water drops
Dispersion (Ch 22)

17. Toothless has a mass of 120,000 kilograms and is flying along at 5 m/s
Toothless has a mass of 120,000 kilograms and is flying along at 5 m/s. What is his momentum?
600,000 kg•m/s (Ch 6)

18. Constant speed OR constant velocity (Ch 5)
I am walking in a straight line and am not changing my pace. How could we describe my movement?
Constant speed OR constant velocity (Ch 5)

19. A second class lever (Ch 8)
What class of lever has an output force in the middle?
A second class lever (Ch 8)

20. The energy of a moving object is known as?
Kinetic energy (Ch 9)

21. Wood, wool, air, rubber, plastic ( Ch 17 if current)
What would be an example of an insulator?
Wood, wool, air, rubber, plastic ( Ch 17 if current)

22. Mechanical waves need media to travel; EM waves don’t (Ch 20)
What is the key difference between a mechanical wave and an EM wave?
Mechanical waves need media to travel; EM waves don’t (Ch 20)

23. Which wave has the lowest frequency ?
The third one…it also has the lowest energy and the longest wavelength (Ch 20)

24. What is a clear object that is thinner at the edges and thicker in the middle called?
Convex lens (Ch 23)

25. A horizontal line on a D-T graph means?
No movement (Ch 5)

26. Add if same direction, subtract if opposite direction (Ch 6)
How do you determine net force?
Add if same direction, subtract if opposite direction (Ch 6)

27. Opaque…followed by translucent and then transparent (Ch 22)
Which type of material lets the least light through?
Opaque…followed by translucent and then transparent (Ch 22)

28. Work is measured in ___, and Power is measured in ___
Joules, Watts (Ch 8)

29. I eat an ice pop. What energy is stored in the bonds of the molecules?
Chemical energy (Ch 9)

30. Which type of lens only makes a virtual image?
Concave lens (Ch 23)

31. Rises, sinks…This is convection used in heating systems (Ch 10)
Hot air _____ and cold air _____.
Rises, sinks…This is convection used in heating systems (Ch 10)

32. What type of simple machine is a screw?
Inclined plane (Ch 8)

33. What is the speed of light in a vacuum?
300,000 km/s OR 3,000,000 m/s (Ch 22)

34. What is the slope on a S-T graph?
Acceleration (Ch 5)

35. A type of wave between two media (such as water and air) is…
A surface wave (Ch 20)

36. If you exert a force of 10N to lift a puppy 1
If you exert a force of 10N to lift a puppy 1.25m high, how much work is done?
12.5J (Ch 8)

37. What force opposes gravity for a falling object?
Air resistance (Ch 6)

38. Can work output ever be greater than work input?
No—friction! (Ch 8)

39. A car drives for .75h at a speed of 50 km/h. How far did it go?
37.5km (Ch 5)

40. What does the law of conservation of energy say?
Energy cannot be created or destroyed; it can only be converted between forms (Ch 9)

41. What are the three primary colors of LIGHT?
Red, green, blue (Ch 22)

42. What type of mirror is this?
Concave (Ch 23)

43. How does thermal expansion allow a thermometer to work?
Hotter temp…increase speed, increase movement, expand, red part moves higher (Ch 10)

44. I apply 200N of force on a pulley to lift a small piano that weighs 1300N. What is the AMA?
6.5 (Ch 8)

45. How could an object accelerate without changing speed?
Change direction (Ch 5)

46. Which colors they reflect (Ch 22)
How is the color of an opaque object determined?
Which colors they reflect (Ch 22)

47. What is the efficiency of a can opener if it requires 7J of work to do 4J of can opening?
57% (Ch 8)

48. In the formula P = V x I, what does the I stand for?
Current (Ch 17)

49. 3rd law—Action and Reaction forces (Ch 6)
This would be which of Newton’s laws?
3rd law—Action and Reaction forces (Ch 6)

50. What is the length of a wave if it has a speed of 45 m/s and a frequency of 3 Hz?
15m (Ch 17)

51. Source, load, and wires (Ch 17)
What are the three basic parts of a circuit?
Source, load, and wires (Ch 17)

52. Gamma…also highest frequency and highest energy (Ch 22)
What part of the EM spectrum has the shortest wavelength?
Gamma…also highest frequency and highest energy (Ch 22)