Conduction, Convection, and Radiation Flashcard

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when faster-moving particles collide with slower-moving ones, transferring energy.

Front

Example of conduction in everyday life?

Back

Holding a hot cup of coffee warms your hands through conduction.

Front

What is convection?

Back

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

Front

Example of convection in nature?

Back

Ocean currents are caused by convection as warm water rises and cool water 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.

Front

Example of radiation in everyday life?

Back

Feeling warmth from the sun or a campfire without direct contact is an example of radiation.

Front

How does an electric blanket warm you?

Back

An electric blanket warms you through conduction, as it directly transfers heat to your body when you lie on it.

Front

What happens to air in a room when heated?

Back

When air is heated, it becomes less dense and rises, causing cooler air to move in to take its place, demonstrating convection.

Front

What is the role of radiation in heating?

Back

Radiation allows heat to travel through space, warming objects without needing to touch them.

Front

How does conduction differ from convection?

Back

Conduction requires direct contact for heat transfer, while convection involves the movement of fluids.