Conduction, Convection, Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is radiation?

Back

Radiation is the transfer of heat through the form of rays, waves, or particles, without the need for a medium.

Front

Give an example of conduction.

Back

An example of conduction is a metal spoon getting hot when placed in a pot of boiling water.

Front

Give an example of convection.

Back

An example of convection is warm air rising and cool air sinking in a room, creating a circulation of air.

Front

Give an example of radiation.

Back

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

Front

What happens to air when it is heated?

Back

When air is heated, it expands, becomes less dense, and rises.

Front

What is the role of density in convection?

Back

In convection, warmer, less dense fluids rise while cooler, denser fluids sink, creating a circulation pattern.

Front

How does the Gulf Stream demonstrate convection?

Back

The Gulf Stream is a current that moves warm ocean water from the south to the north, illustrating convection in water.

Front

What is the difference between conduction and convection?

Back

Conduction transfers heat through direct contact in solids, while convection transfers heat through the movement of fluids.