Heat Transfer

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What is conduction?

Back

Conduction is the process of heat transfer through direct contact between materials, where heat 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 sunlight, which can travel through a vacuum.

Front

Example of conduction in everyday life?

Back

A steak being heated when it touches a hot pan.

Front

Example of convection in everyday life?

Back

The air near the ceiling in a room being warmer than the air near the floor.

Front

Example of radiation in everyday life?

Back

Rocks getting warmed by the sun.

Front

What happens during convection?

Back

Warmer, less dense fluid rises while cooler, denser fluid sinks, creating a circulation pattern.

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.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, preventing heat transfer.