1. Review Slides

2. Matching Heat Kinetic energy + potential energy Average kinetic energy
Temperature
Thermal energy
Transfer of thermal energy by direct contact
Transfer of thermal energy
Transfer of thermal energy through electromagnetic waves
Transfer of thermal energy by movement of particles in a fluid
Heat
Kinetic energy + potential energy
Average kinetic energy
Conduction
Convection
Radiation

3. 7.
Rank the states of matter from weakest to strongest intermolecular forces:
Gas, solid, liquid
Gas, liquid, solid
Solid, liquid, gas
Solid, gas, liquid

4. 8.
Rank the particles of the states of matter in terms of average kinetic energy from slowest to fastest.
Gas, solid, liquid
Gas, liquid, solid
Solid, liquid, gas
Solid, gas, liquid

5. Object A 75° C 50 g Object B 30°C 50 g
9) Object __ has more thermal energy. 10) Object ___has a higher average kinetic energy. 11) Heat will transfer from object __to object ___.

6. Matching 12. 100° C Temperature Thermal energy Radiation Heat
Convection
° C

7. Matching 13. The sun transfers energy to earth by the process of ____.
Temperature
Thermal energy
conduction
Heat
Radiation
Convection
13. The sun transfers energy to earth by the process of ____.

8. Matching 14. The circular arrows in the picture are showing____.
Temperature
Thermal energy
conduction
Heat
Radiation
Convection
14. The circular arrows in the picture are showing____.

9. Matching 15. The circular arrows in the picture are showing____.
Temperature
Thermal energy
conduction
Heat
Radiation
Convection
15. The circular arrows in the picture are showing____.

10. Matching 16. The arrow in picture is showing____. Temperature
Thermal energy
conduction
Heat
Radiation
Convection
16. The arrow in picture is showing____.

11. 17. Temperature 18. Heat 19. Thermal energy
Examples include convection, radiation, and conduction
Average kinetic energy
Potential energy + kinetic energy

12. Radiation B. convection C. conduction 20. Does not require particles
21. Uses direct contact between particles
22. Particles at the bottom of the pot of boiling water move to the top, taking their thermal energy with them

13. Object A Object B 75° C 75°C 70 g 50 g
23) Object ___ has more thermal energy. 24) Object ___has a higher average kinetic energy. 25) Heat will transfer from object __to object ___.

14. T or F 26) A dead fly, a blanket, and a dog all have thermal energy.
27) Solids, liquids, and gases have all have thermal energy.
28) A casserole is placed in the refrigerator. Then it is placed in the freezer. The casserole has thermal energy in both locations.

15. 29) Look at the pictures below
29) Look at the pictures below. The picture in which the LARGEST transfer of thermal energy will occur is _____. Why? A B
Mouth at 98.6°F
Cookies at 300°F
Mouth at 98.6°F
Cookies at 150°F

16. 30) Look at the pictures below
30) Look at the pictures below. The picture in which the LARGEST transfer of thermal energy will occur is _____. Why? A B
Mouth at 98°F
Sno Cone 28°F
Mouth at 98°F
Cookies at 158°F

17. T/F If false, correct the underlined word

18. T or F The intermolecular forces of a liquid are stronger than a gas.
Condensation involves adding thermal energy to a gas.
On a phase change graph, horizontal lines represent phase changes.
During melting, thermal energy is breaking bonds of the solid.
During vaporization, thermal energy is strengthening the bonds of a liquid.

19. #36

20. #37

21. #38

22. #39

23. #40

24. #41

25. #42

26. Graphic Organizers/Diagrams

27. Thermal Energy and Phase Changes
Thermal Energy
150
100 50
Temperature (°C)
Thermal Energy and Phase Changes 2 1 3 4 5 6 7

29. Student-Created Questions Additional Challenge

30. Ex. Predict what would happen if sublimation occurred on an ice cube A
Ex. Predict what would happen if sublimation occurred on an ice cube A. The ice would turn to water B. The ice would not go through phase change C. The partials in the ice would increase in intermolecular force D. The partials would decrease in inter molecular force and change to steam

31. Identify the phase change in picture above.

32. Identify the melting point on the graph.

33. Which is the best description of radiation?
A) Travel through electromagnetic waves.
B) Heat travels through a gas or a liquid.
C) Heat travels through a solid.
D) It is very good for you.

34. What qualities are different between a solid and a liquid
What qualities are different between a solid and a liquid? A) They are the same. B) Solid has faster moving particles than a liquid. C) Liquid has faster moving particles than a solid. D) Solid has more particles

35. What is the best example of a Liquid forming into a Gas
What is the best example of a Liquid forming into a Gas? _______________ A) Liquid, Gas, Solid B) Liquid, Boiling Point, Gas C) Solid, Liquid, Solid D) Liquid, Melting Point, Liquid

36. If Thermal Energy transfers by movement of molecules what is this called? _______________ A) Boiling Point B) Radiation C) Freezing D) Convection E) Conduction

37. From the picture shown you can conclude that the water is at its ________________. HINT: The circles represent bubbles. A) Boiling Point B) Gas C) Heat D) Radiation

38. What are the differences and similarities between water freezing and melting? A: They both can involve water, yet are different processes B: One turns water to ice, and the other turns ice to water, yet they both deal with liquids and solids relationship only C: A&B D: There are none

39. Predict what would happen if a cube of ice was put into a cup of coffee.
It would stay the same, because the mass was not changing
It would melt, because the coffee is transferring heat to the ice.
It would melt, because the ice is transferring energy to the coffee
It would become colder because the particles are moving faster.

41. Predict what would happen if an extreme amount of thermal energy was added to a metal table
The table would expand
The table would get smaller
The table would stay the same
The table would explode

42. Predict what would happen if lava spilled into the ocean
Predict what would happen if lava spilled into the ocean? What would happen to the particles?
a. Particles speed up.
b. Ms. Nicholas comes in to save them.
c. They turn into a solid.
d. Lava is too slow so it evaporates

43. On the phase change line graph, find where the substance would go through condensation.
*Insert Line graph here with numbers 1-7 showing the steps*
a. 2
b. 3
c. 5
d. 6

44. Arrange the steps of melting in order.
Molecules slow down, changes from liquid to solid
Molecules speed up, then they changes from a solid to liquid
Molecules speed up and the solid changes to a gas

45. Water was frozen, and then it was found as a gas
Water was frozen, and then it was found as a gas. What happened to the ice?
Convection.
Sublimation.
Radiation.
Evaporation.

46. Look at the example and answer the question Melting>>Evaporation>>Deposition>>Sublimation
What phase does it start in, and what phase does it end in?
Gas>Solid
Solid>Gas
Liquid>Gas
Solid> Solid

47. Which set of phase changes start in a gas form?
Deposition, melting
Freezing, sublimation
Condensation, deposition
Melting, evaporation

48. When condensation occurs, what happens to the particles?
The particles spread apart
The particles get larger
The particles get closer together
The particles don’t change

49. Predict what would happen to the molecules if you take a class of cold milk and let it sit out in the sun.
The molecules would increase in speed and expand.
The molecules would increase in speed, but not expand.
The molecules would not increase in speed, but expand.
The molecules would stay the same.

50. What word does NOT belong?
Sublimation
Melting
Freezing
Convection
Vaporization

51. What statement best describes FREEZING?
When the molecules spread apart and vibrate.
When the molecules come together and vibrate against each other.
When the molecules spread apart and move freely.
When the molecules do not move.