Thermal Equilibrium (7.8B)

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two or more objects in contact with each other do not exchange thermal energy, meaning they are at the same temperature.

Front

How does thermal energy move through a metal rod when one end is heated?

Back

Thermal energy moves through a metal rod by conduction, which is the transfer of heat through direct contact of particles.

Front

What happens to thermal energy in a well-insulated house on a hot day?

Back

Thermal energy moves from warmer rooms to cooler rooms until thermal equilibrium is reached.

Front

At what point does heat stop moving between two objects?

Back

Heat stops moving when both objects reach the same temperature.

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 thermal energy 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 thermal energy through electromagnetic waves, such as heat from the sun.

Front

What occurs when thermal equilibrium is reached within a system?

Back

All substances within the system have the same temperature.

Front

What is an example of conduction?

Back

An example of conduction is a metal spoon getting hot when placed in a pot of boiling water.

Front

What is an example of convection?

Back

An example of convection is warm air rising and cool air sinking in a room, creating a circulation of air.