1. Chapter 9/10 Review

2. What is thermal expansion? When molecules in a substance move faster and further apart. Substances expand when heated and contract when cooled.

3. What law states that no system can reach absolute zero? Third law of thermodynamics

4. What temperature is the same as absolute zero on the Celsius scale? -273 Celsius

5. What substance has the highest specific heat capacity? Water

6. What is thermal energy transferred from one object to another? Heat

7. Which type of heat transfer is through direct contact? Conduction

8. The phase of matter that has very compact particles. Solids

9. The change of a liquid to a gas. Evaporation

10. What is responsible for Islands staying warmer year round than inland areas? Specific Heat Capacity (Thermal Inertia) of Water Being High so it does not change temperature easily.

11. What is the temperature of water at the bottom of a frozen lake? 4 degrees Celsius

12. At what temperature does water boil (Celsius)? 100 degrees Celsius

13. What is the formula for a temperature change? Q = mc (change in temp)

14. What are two examples of thermal expansion? Bimetallic strip, telephone wires, expansion joints in bridges

15. This type of heat transfer plays a role in plate tectonics. Convection

16. Water demonstrates what behaviors when it is heated to melt and cooled to freeze? It expands when cooled to freezing and contracts when heated to melt

17. Compared to an ice sculpture, does a match have more total thermal energy? No, the match has a tremendous burst of energy, but the ice sculptures size gives it a large total energy. No, the match has a tremendous burst of energy, but the ice sculptures size gives it a large total energy.

18. The zeroth law of thermodynamics discusses what topic? Thermal equilibrium

19. What is used to take the density of an object? Graduated cylinder, ruler, triple beam balance

20. What is the unit of mass? Gram

21. Something that gives off thermal energy is said to _______ that energy. emit

22. Why does ice float? It has a lower density

23. What substance(s) expand when cooled? Only water!!!

24. When equilibrium is established, energy will flow in which direction when you touch a piece of ice? Both into the ice and into your finger

25. This phase of matter is made of very free particles. Gas

26. Evaporation is what type of process? (Heating or cooling) A cooling process

27. Our planet loses heat by which method of heat transfer? Radiation

28. Does a spark from a sparkler burn your skin? Why? No, there is a lot of thermal energy in the spark, but compared to your body it is very small and doesn’t effect you.

29. If two 10 mL beakers of water were combined. One was originally 30 degrees and the other was originally 50, what would their final temperature be? 40 degrees

30. Materials that absorb heat really well are good: conductors

31. When a solid becomes a gas it is called: Sublimation

32. A substance that transfers heat efficiently is a good: Conductor

33. This is a measure of how well a substance holds heat Specific heat capacity

34. The total energy of all atoms and molecules in a substance? Thermal energy

35. What is used to measure mass? A triple beam balance