Conduction, Convection, Radiation

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat by the movement of fluids (liquids or gases) where warmer parts rise and cooler parts sink.

Front

What is radiation?

Back

Radiation is the transfer of heat through electromagnetic waves, such as sunlight.

Front

Example of conduction in everyday life?

Back

Touching a hot stove and feeling the heat.

Front

Example of convection in everyday life?

Back

Boiling water where hot water rises and cooler water sinks.

Front

Example of radiation in everyday life?

Back

Feeling the warmth of the sun on your skin.

Front

What happens to air when it is heated?

Back

It expands, becomes less dense, and rises.

Front

What happens to air when it cools?

Back

It contracts, becomes denser, and sinks.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object due to their motion.

Front

How does heat transfer in a vacuum?

Back

Heat transfer in a vacuum occurs only through radiation, as there are no particles to conduct or convect heat.