Thermal Equilibrium (7.8B)

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which all substances within a system have the same temperature, and there is no net heat transfer between them.

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 infrared radiation, which can occur in a vacuum.

Front

How does heat transfer occur when a hot object touches a cold object?

Back

Heat transfers from the hot object to the cold object through conduction until both reach thermal equilibrium.

Front

What happens to the temperature of a hot cup of coffee placed on a cold counter?

Back

The coffee cools down as heat is transferred from the coffee to the counter through conduction.

Front

What direction does heat flow when ice is added to warm water?

Back

Heat flows from the warmer water to the colder ice until thermal equilibrium is reached.

Front

At what point does heat transfer stop between two objects?

Back

Heat transfer stops when both objects reach the same temperature.

Front

What is an 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

What is an example of convection in everyday life?

Back

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