Thermal Energy Transfer 1
The Sun warms your face on a cold day. What kind of heat transfer is this?
Radiation
Which of these materials is the best conductor of heat?
A. Metal
B. Plastic
C. Wood
D. Rubber
Metal
What happens when two objects rub together?
They create heat.
When you touch a metal pot on the stove and it feels hot, what type of heat transfer is happening?
Conduction
Which material would keep your drink cold the longest?
A. Metal cup
B. Plastic cup
C. Wooden cup
D. Foam cup
Foam cup
Which example shows friction being used to produce heat?
A. Ice melting in the sun
B. Rubbing your hands together
C. A fan blowing air
D. A candle burning
Rubbing your hands together.
Warm air rising and cool air sinking in a room is an example of—
Convection
Which of the following best describes a conductor?
A. Something that blocks heat
B. Something that allows heat to pass through easily
C. Something that stores heat
D. Something that reflects heat
Something that allows heat to pass through easily.
A child slides down a slide and notices the slide feels warm. What caused this?
Friction between the slide and the child’s clothes.
Which type of heat transfer happens without any touching?
Radiation
Which of these is an insulator?
A. Copper
B. Iron
C. Glass
D. Aluminum
Glass
Why does rubbing two sticks together make them warm?
Friction between the sticks produces heat.
You warm your hands by holding them close to a campfire, but not touching the flames. What type of energy transfer is this?
Radiation
A student wraps her sandwich in aluminum foil. What will most likely happen to the sandwich?
It will stay the same temperature longer.
A student rolls a toy car on carpet and then on a smooth floor. The car rolls farther on the smooth floor because—
There is less friction on the smooth floor.