Thermal Equilibrium

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature, resulting in no net transfer of heat between them.

Front

What happens to heat transfer when two objects have the same temperature?

Back

The net transfer of heat is zero when both objects have the same temperature.

Front

Which cup has higher temperature: Cup 1 at 27° C or Cup 2 at 52° C?

Back

Cup 2 has a higher temperature because its molecules are moving faster.

Front

What type of heat transfer occurs through direct contact?

Back

Conduction occurs through direct contact between two objects.

Front

What is an example of conduction in everyday life?

Back

Ironing a shirt is an example of conduction.

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.

Front

What is required for conduction to occur between two objects?

Back

Both objects must be in physical contact with each other for conduction to occur.

Front

How does temperature affect molecular movement?

Back

Higher temperature means that molecules move faster, while lower temperature means they move slower.

Front

What is the primary method of heat transfer in liquids and gases?

Back

Convection is the primary method of heat transfer in liquids and gases.