Heat Transfer

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm air rises while cool air sinks, creating a cycle.

Front

What happens to kinetic energy as temperature increases?

Back

The higher the temperature, the higher the kinetic energy of the particles.

Front

In which direction does heat flow when touching ice with your hand?

Back

Heat flows from the hand to the ice.

Front

How does heat transfer occur when holding hands with a warm friend?

Back

The heat energy from your friend's hand transfers to your hand through conduction.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat through waves, such as infrared radiation from the sun.

Front

What is conduction?

Back

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

Front

What is convection current?

Back

A convection current is a continuous cycle of rising warm fluid and sinking cool fluid, often seen in liquids and gases.

Front

What is thermal equilibrium?

Back

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

Front

What is an example of conduction?

Back

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

Front

What is an example of convection?

Back

An example of convection is warm air rising from a heater and circulating in a room.