Conduction, Convection & Radiation

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the flow of liquids and gases. Warmer fluids rise while cooler fluids sink, creating a cycle.

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves. It does not require a medium, allowing heat to travel through space.

Front

Example of conduction in everyday life?

Back

An example of conduction is touching a hot stove and feeling the heat transfer to your hand.

Front

Example of convection in everyday life?

Back

An example of convection is boiling water, where hot water rises to the top and cooler water sinks.

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 fluids during convection?

Back

In convection, warmer fluids rise and cooler fluids sink, creating a continuous flow.

Front

How does conduction occur in solids?

Back

In solids, conduction occurs as vibrating particles transfer energy to neighboring particles through direct contact.

Front

What is the role of temperature in conduction?

Back

In conduction, heat flows from areas of higher temperature to areas of lower temperature until thermal equilibrium is reached.

Front

What is thermal equilibrium?

Back

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