1. Learning Goal #2 Test Review!
Created by Educational Technology Network

2. 10 20 30 40 50 Topic 2 Situations Topic 4
Conduction, Convection and Radiation
Topic 2
Situations
Topic 3
Thermal Energy Random
Topic 4
The Law of Conservation of energy
Topic 5
Picture This/ Name That 10 20 30 40 50

3. Give an example of something heating by radiation
Topic
Give an example of something heating by radiation

4. Heating from a light, the sun, or a fire
Answer 1 – 10
Heating from a light, the sun, or a fire

5. Topic
Give an example of something heating by conduction

6. Answer 1 – 20
A pan getting hot from a stovetop, the can getting hot from the heating pad, cheese melting on a burger, etc.

7. Topic
How is heat transferred through conduction?

8. Answer 1 – 30
Through directs contact (solids)

9. Topic
How is heat transferred through radiation?

10. Answer 1 – 40
Through waves (empty space)

11. Topic
Give an example of heat being transferred through convection.

12. Answer 1 – 50
A heater heats a room, boiling water in a pot, etc.

13. Topic
A falling watermelon has kinetic energy. Where does that energy go when it hits the ground and stops?
a: It disappears
b: It is transformed into potential energy again
c: It is transformed into heat
d: It is transformed into matter

14. Answer 2 – 10
C- The watermelon energy is transformed into heat

15. Topic
What evidence demonstrates that convection currents are at work?
A: food coloring spreads through a glass of water being stirred
B: Smoke rises from a lighted candle wick
C: The handle of a pan on the stove gets hot
D: Your face feels warm sitting beside a fire

16. Answer 2 – 20
B: Smoke rises from a lighted candle wick

17. Topic
A person holds a nail in the flame of a candle and eventually drops the nail because it has gotten too hot to hold. Explain the heat transfer that took place and how you know.

18. Answer 2 – 30
Conduction- Direct contact, the molecules in a solid vibrate all the way down the object until the whole thing is hot. Metal is also a good conductor of heat.

19. Topic
What does an insulator do?

20. Answer 2 – 40
Minimizes the flow of thermal energy/ Stops or slows thermal energy from moving

21. Give an example of a poor insulator
Topic
Give an example of a poor insulator

22. Metal, other conductors
Answer 2 – 50
Metal, other conductors

23. Name 3 materials that are good insulators
Topic 3 – 10
Name 3 materials that are good insulators

24. Answer 3 – 10 Cotton Styrofoam Paper Wool Rubber Wood Silica gel
Fiberglass

25. Topic 3 - 20 A winter coat is an example of _______. A: a conductor
B: an insulator
C: a generator
D: a refractor

26. Answer 3 – 20
B: an insulator

27. Topic
Which of the materials below is the best conductor of heat?
A: air
B: plastic
C: copper
D: wood

28. Answer 3 – 30
C: copper

29. Topic 3 - 40 Heat always travels _______. A: from low to high places
B: from high to low places
C: from warm to cool places
D: from cool to warm places

30. Answer 3 – 40
C: from warm to cool places

31. Topic
Stepping from a carpet onto a tile floor, your bare feet suddenly feel cold because ___________.
A: the tile is colder than the carpet
B: the tile is a better conductor than the carpet
C: the carpet is a better conductor than the tile
D: the carpet radiates more heat than the tile

32. Answer 3 – 50
B: the tile is a better conductor than the carpet

33. Topic
The law of conservation of energy: What is it? (Think about the money transfer we did in class)

34. Answer 4 – 10
Energy cannot be created or destroyed, but it can be transferred and change forms.

35. Topic
List 5 Forms of energy (Think about your graphic organizer)

36. Answer 4 – 20
Heat
Chemical
Mechanical
Nuclear
Light
Sound
GPE
EPE

37. Topic
A battery has what kind of energy?

38. Answer 4 – 30
Chemical Energy

39. Topic
What type of energy does friction produce?

40. Answer 4 – 40
Heat (Remember rubbing your hands together)

41. Topic
What form of energy is given when you kick a football?

42. Answer 4 – 50
Mechanical Energy (motion energy)

43. Topic 5 - 10 Name That Energy Transfer (2 steps) Start: Food
End: Your muscles allow you to run
(Be specific)

44. Answer 5 – 10 Start: Food= Chemical Energy
End: Muscles= Mechanical Energy

45. Topic
What heat transfer is happening at each object?

46. Answer 5 – 20 Campfire- Radiation Pot- Convection
Frying Pan- Conduction

47. Topic 5 - 30 Name That Energy Transfer (At least 3 steps)
Skier (name as many transfers as possible)
Start: Top of a mountain
End: Stopped at the bottom of the mountain
(Be specific)

48. Answer 5 – 30 Start: Potential energy at the top
During: Kinetic energy as the skier goes down
During: Chemical energy from food to mechanical as muscles move.
End: Kinetic/ mechanical is changed into thermal/heat once the skier has stopped at the bottom.

49. Topic
Your hot chocolate was too hot so you let it sit on the table for 3o minutes. When you came back it was much cooler. What happened to the heat?

50. Answer 5 – 40
Heat moves from warmer things to cooler things so the heat moved from the hot chocolate by convection in steam up into the air and also by conduction from the cup to the table.

51. Topic 5 - 50 Name the energy transfers taking place in these items
Start: Battery- End: Flashlight
Start: Taco- End: Playing Soccer
Start: Charger- End: Charging phone

52. Answer 5 – 50 Battery – Flashlight Taco- Playing Soccer
Chemical- Light/Heat
Taco- Playing Soccer
Chemical- Mechanical
Charger- Charging phone
Electrical- light/heat