Conduction, Convection, & Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat energy moves from the hotter object to the cooler one.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, which can occur in a vacuum.

Front

Example of conduction in everyday life?

Back

When you touch a hot metal spoon, heat is transferred from the spoon to your hand through conduction.

Front

Example of convection in everyday life?

Back

When boiling water in a pot, the hot water rises to the top while cooler water sinks, creating a convection current.

Front

Example of radiation in everyday life?

Back

Feeling the warmth of the sun on your skin is an example of heat transfer through radiation.

Front

What is the worst absorber of infrared radiation?

Back

A shiny white surface is the worst absorber of infrared radiation.

Front

How does heat energy pass through solid materials?

Back

Heat energy passes through solid materials primarily by conduction.

Front

What happens to air when it is heated?

Back

When air is heated, it becomes less dense and rises, leading to convection currents.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.