Chapter Six: Thermal Energy

Can you outsmart the average Fifth Grader? This was Friday�s Science Test.

Name:
Date:

Chapter Six Test

Multiple Choice Choose the answer that makes the most sense. Choose only one.

1. Ice floats because water
(a) contracts as it freezes
(b) evaporates
(c) is cold
(d) expands as it freezes

2. Which kind of matter can expand the most when heated?
(a) solid
(b) liquid
(c) gas
(d) ice

3. A material that is a good heat insulator is
(a) wood
(b) iron
(c) copper
(d) steel

4. Energy can move from warmer objects to cooler objects in
(a) one way
(b) two ways
(c) three ways
(d) four ways

5. The particles in matter are always
(a) large
(b) moving
(c) energy
(d) still

6. Conduction happens when energy moves from particle to
(a) atom
(b) energy
(c) convection
(d) particle

7. A furnace heats a room by
(a) radiation
(b) convection
(c) conduction
(d) matter

8. Sidewalks expand during
(a) cold weather
(b) rainy weather
(c) hot weather
(d) dry weather

Vocabulary

One word matches each phrase. Cross the word out when you use it so you don�t use it twice.

Conduction Insulator Contract Pyrometer Convection Radiation Expand Temperature Heat Thermal Energy

1. Because all matter is made up of moving particles, all matter has ___________________ ___________________.

2. A heat __________________ is a material that does not heat well.

3. A stove heats a pan by ______________.

4. Most kinds of matter _____________ when they lose heat.

5. Most kinds of matter ______________________ when they are heated.

6. A large amount of _______________ can cause an object to glow.

7. _____________ helps keep warm air moving through heated buildings during cold weather.

8. An object with more heat can have a lower _______________ than an object with less heat.

9. A ________________________ measures temperature by the color of an object�s glow.

10. The sun�s energy is a form of ____________________.

Short Answer
White a complete sentence to answer the question.

1. In what direction does heat move during conduction?

2. How do liquid crystals show changes in temperature?

3. Does heat affect all kinds of matter in the same way?

4. How can an object have less heat than another object at the same temperature?

5. How is heat usually transferred through a liquid?

6. How is heat different from temperature?