Convection, Conduction, Radiation

Front

What is Conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other.

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What is Convection?

Back

Convection is the transfer of heat by the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks.

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

Example of Conduction in everyday life?

Back

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

Front

Example of Convection in everyday life?

Back

An example of convection is the way hot air rises in a room, causing cooler air to move in and create a circulation.

Front

Example of Radiation in everyday life?

Back

An example of radiation is feeling the warmth of the sun on your skin, even when you are not in direct contact with it.

Front

What happens to the density of a fluid when it is heated?

Back

When a fluid is heated, it becomes less dense and tends to rise.

Front

What happens to the density of a fluid when it is cooled?

Back

When a fluid is cooled, it becomes more dense and tends to sink.

Front

How does a hot air balloon rise?

Back

A hot air balloon rises because the air inside the balloon is heated, becoming less dense than the cooler air outside.

Front

What is the primary method of heat transfer in liquids?

Back

The primary method of heat transfer in liquids is convection.