Download Unit 8 Heat Study Guide A change of state is a ___ Process by

Unit 8 Heat Study Guide
1. A change of state is a ___
a. Process by which two states of matter co-exist
b. Chemical change
c. Physical change that converts a substance from one physical form to another
2. Particles in a __________ move slower than particles in a __________.
3. Particles in a ___ vibrate in place.
a. Solid
b. Liquid
c. Gas
4. Your bare feet cool on a cement floor due to ____
a. Convection
b. Radiation
c. Conduction
5. ____________ is the transfer of energy through space.
6. ____________ is the transfer of energy by the movement of a liquid or a gas from one
place to another.
7. The total kinetic energy of the particles that make up a substance is ____
a. Thermal energy
b. Temperature
c. Radiation
d. Thermal expansion
8. Particles in motion have _________ energy.
9. ___________ ________ allow concrete segments on a bridge to expand to avoid
cracking on hot days.
10. Absolute zero is ___.
a. 0⁰F
b. -273⁰C
c. 0K
d. B and C
11. An example of thermal expansion is ____.
a. Warm air rising
b. Sun warming your face
c. Alcohol in a thermometer rising
d. None of the above
12. ____________ is the official SI temperature scale.
13. Which of the following is not a physical change? ____
a. Melting
b. Freezing
c. Boiling
d. Changing color
14. Answer the following question based on the graph below.
What is the boiling point of this substance? _____
a. 100⁰C
b. 0⁰F
c. 273K
15. Examine the graph below and answer the question that follows.
Based on the above graph at what two temperatures are phase changes occurring? ____
a. 32⁰F and 212⁰F
b. 0⁰C and 100⁰C
c. -20⁰C and 0⁰C
16. Why does average kinetic energy remain the same during a phase change of a
substance? ____
a. Thermal energy is used to overcome attraction between particles.
b. Average kinetic energy does not stay the same
c. Thermal energy is used to make a chemical change
17. Water rises and falls in a boiling pot of water due to ____.
a. Conduction
b. Convection
c. Radiation
d. Evaporation
18. The sun warming your face is an example of ____.
a. Radiation
b. Conduction
c. Convection
d. Condensation
19. Burning your hand while touching a hot stove is an example of ____.
a. Insulation
b. Conduction
c. Convection
d. Radiation
20. Heat is the __________ of __________ between objects of __________ temperatures.
21. If two different substances have the same temperature, then ____
a. They have the same total kinetic energy
b. They have the same state of matter
c. Their specific heat is the same
d. None of the above
22. In which state does water have the highest average kinetic energy ____?
a. Solid
b. Liquid
c. Gas
23. Gloves warm your hands because they are a (n) ____.
a. Insulator
b. Conductor
c. UV ray absorber
d. They radiate heat
24. The lowest possible temperature is ___K or _____⁰C.
25. The Atlantic Ocean has _________ thermal energy and ______ average kinetic energy
than a cup of hot chocolate.