Convection, Conduction, Radiation Practice

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one through physical touch.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense areas of a fluid rise and cooler, denser areas sink.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, allowing heat to be transferred through empty space.

Front

How does heat transfer from the sun to the Earth?

Back

Heat from the sun reaches the Earth through radiation.

Front

What happens to heat when it moves from a hot object to a cold object?

Back

Heat transfers from an area of high temperature to an area of low temperature.

Front

What is an example of conduction?

Back

Touching a hot stove and feeling the heat transfer to your hand.

Front

What is an example of convection?

Back

The warm air rising in a room, causing the upper part to be warmer than the lower part.

Front

What is an example of radiation?

Back

Feeling the warmth of the sun on your skin.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

Front

What is the role of density in convection?

Back

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