FA3 Obj 3 Heat Transfer

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What type of heat transfer is demonstrated by heat lamps warming baby chickens?

Back

Radiation is the type of heat transfer demonstrated by heat lamps warming baby chickens.

Front

Define conduction in terms of heat transfer.

Back

Conduction is the process where heat transfers from objects that are touching.

Front

What is convection?

Back

Convection is the transfer of heat in a fluid (liquid or gas) where hot fluid expands, becomes less dense, and rises, while cooler fluid sinks.

Front

How does heat move away from hot coffee?

Back

Heat moves away from hot coffee through convection.

Front

What happens to a hot liquid or air during convection?

Back

A hot liquid or air expands, becomes less dense, and rises.

Front

What is the role of density in convection?

Back

In convection, less dense (hotter) fluids rise, while more dense (cooler) fluids sink.

Front

What is an example of conduction in everyday life?

Back

An example of conduction is touching a hot stove and feeling the heat transfer to your hand.

Front

What is an example of radiation in everyday life?

Back

An example of radiation is feeling the warmth of the sun on your skin.

Front

What is the difference between conduction and convection?

Back

Conduction is heat transfer through direct contact, while convection is heat transfer through the movement of fluids.