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

How does heat transfer occur when holding hands with someone?

Back

Heat energy from your friend's hand transfers to your hand through conduction, making your hand warmer.

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 an example of convection?

Back

An example of convection is the way warm air rises and cool air sinks in a room, creating air currents.

Front

What is an example of conduction?

Back

An example of conduction is when you touch a hot stove and heat transfers from the stove to your hand.

Front

What is 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 becomes less dense and rises.

Front

What happens to air when it is cooled?

Back

When air is cooled, it becomes denser and sinks.

Front

What is the role of a heat source in convection?

Back

A heat source warms the fluid, causing it to rise and create a convection current.