Conduction, Convection, 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.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a circulation pattern.

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, meaning it can occur in a vacuum.

Front

Example of conduction in everyday life?

Back

Burning your hand on a hot stove is an example of conduction.

Front

Example of convection in everyday life?

Back

In a swimming pool, the warm water at the surface rises while cooler water sinks, demonstrating convection.

Front

Example of radiation in everyday life?

Back

Feeling warmth from the sun is an example of radiation.

Front

What happens to hot air in convection?

Back

Hot air expands, becomes less dense, and rises.

Front

What happens to cold air in convection?

Back

Cold air is denser and sinks, creating a cycle of movement.

Front

How does conduction occur in metals?

Back

In metals, conduction occurs as free electrons move and transfer energy between atoms.

Front

How does convection affect weather patterns?

Back

Convection currents in the atmosphere can lead to the formation of clouds and storms.