Direction: Read the questions carefully and write it before the number provided.

1. Metals are the best

a. insulators of heat
b. conductors of heat
c. conductors of light
d. insulators of electricity

2. An example of conductor of heat is
a. paper
b. cloth
c. air
d. aluminum

3. If a substance is hot, its particle will

a. move fast than the cooler object
c. move as the cooler object
b. move slow than the cooler object
d. may move fast or slow than the cooler object

4. When you touch a cold piece of ice with your finger, energy flows

a. from the ice to your finger
b. from your finger to the ice
c. actually both ways

5. Pour a liter of water at 40°C into a liter at 20°C and the final temperature of the two becomes
a. more than 30°C
b. less than 30°C
c. at or about 30°C

6. The lowest temperature possible in nature is

a.-273°C. b. 0°C. C. 4K. d. -100°C

7. Astronomers can determine the temperature of a star by its
a. luminosity
b. mass
C. size
d. color

8. Heat transfer always goes from
a. cold to hot.
b. hot to cold.
c. heat doesn't transfer.
d. freezing to cold

9. The reason you can hold your fingers beside (but not above) a candle flame with hurt is that

a. hot air rises
b. air is a poor heat conductor
c. hot-air convection currents
d. all of the above

10. Energy transfer by convection is primarily restricted to

a. gases b. liquids. C. solids. d. solids and gases e. solid, liquid​