Thermal Energy

Which method of heat transfer occurs when two objects are in direct contact with each other?

• Conduction

• Convection

• Radiation

• Reflection

What is the process called when heat moves through liquids and gases?

• Conduction

• Convection

• Radiation

• Absorption

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is an example of radiation?

• The Sun warming your face

• Boiling water in a pot

• Touching a hot pan

• Melting ice in your hand

Which of the following is NOT a method of thermal energy transfer?

• Conduction

• Convection

• Radiation

• Vibrations

When you feel the warmth from a campfire without touching it, which type of heat transfer is happening?

• Conduction

• Convection

• Radiation

• Insulation

Why does warm air rise above a heater in a room?

• Warm air is heavier than cold air

• Warm air is lighter than cold air

• Warm air is attracted to the ceiling

• Warm air is pushed by cold air

Tags

NGSS.MS-ESS2-6

Which scenario best demonstrates convection?

• A metal rod heating up at one end

• Water boiling in a pot, with bubbles rising

• Feeling heat from a light bulb

• Ice melting in your hand

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A metal bench in the park feels hot on a sunny day, even though the air is cool. Explain which type of heat transfer is responsible

• Radiation from the sun heats the bench.

• Convection from the air heats the bench.

• The bench generates heat on its own.

• The bench reflects heat away.

A student notices that the upstairs rooms in their house are warmer than the downstairs rooms during winter. Using your knowledge of heat transfer, explain why this happens.

• Warm air rises due to convection, making upstairs rooms warmer.

• Cold air rises, making downstairs rooms cooler.

• Heat is transferred by conduction only.

• Radiation only affects the downstairs rooms.

Label the following types of heat transfer.

a

b

c

Radiation

Convection

Conduction