1. 2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Vocabulary 1 Vocabulary 2 Light & Heat 1 Light & Heat 2 Potpourri

2. What is refraction?

3. Light bending when it changes speed

4. What is radiation?

5. The movement of heat without matter (no matter in space)

6. Define convection

7. The movement of heat in liquids and gases

8. Define light

9. A form of energy that can travel through space

10. What is waste heat?

11. Heat that can’t be used to do work

12. What is reflection?

13. Light bouncing off an object

14. What is energy transfer?

15. The change of energy from one form to another.

16. Define conduction

17. The way heat travels through materials that are touching.

18. Define opaque

19. Can not see through this object

20. What is transparent?

21. One can see through this object

22. If you pull down a window shade to block the sunlight, what would describe the window shade?

23. opaque

24. You place a pan onto a hot electric stove burner. How does the stove heat the pan?

25. conduction

26. What happens to light when it hits a mirror?

27. It reflects

28. Imagine having 3 coffee cups in front of you. The first is smaller, but very hot. The second is larger, and also very hot. The third is also large, but cooler in temperature. Which cup has the most energy? 1, 2, or 3

29. The 2 nd. It is large and very hot.

30. Which example of matter would carry heat by convection? a. cake b. soda c. dirt d. rocks

31. Soda, it travels through liquids and gases

32. When a thermometer is warmed, the liquid inside of it rises. What is happening to the particles of the liquid to make it rise?

33. They have a lot of energy

34. You are standing next to a hot oven. The oven door is closed, but you can feel its heat. How are you feeling the heat?

35. Through waste heat and conduction

36. What does temperature measure?

37. The average energy of particles in matter.

38. Imagine placing a piece of metal into a container of water. The temperature of the water rises (warms up). What can you infer (guess) about what the original temperature of the metal and the water?

39. When the metal was first placed into the water, it was warmer than the water. The water temperature rose as heat was transferred from the metal to the water.

40. You and your friend are standing outside by the fourth grade doors. You are standing in the shade by the door, but your friend is standing in the middle of the blacktop in the sun. Who can see the sun? Explain.

41. Your friend can see the sun since light travels in a straight line directly to their eyes, and nothing is blocking the sun from their eyes.

42. Image you have 2 solar cookers in front of you. One is clean and shiny. The other is dirty and dull. Everything else about the cookers is the same. 1.Which cooker do you think will reach a higher temperature? 2.Explain why the cooker you chose will reach a higher temperature.

43. 1.The clean, shiny cooker. 2. The shiny cooker reflects more light and heat, so there is more energy to raise the temperature.

44. How many degrees are in a right angle?

45. 90 degrees

46. Estimate to the nearest hundredth: 45.567

47. 45.57

48. What is the measure of the angles of a triangle?

49. 180 degrees

50. How many cm in 50 m?

51. 5,000