Thermal Energy transfer and equilibrium

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, which determines its temperature.

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 are the three methods of heat transfer?

Back

The three methods of heat transfer are conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

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

How does heat transfer occur when ice is added to a drink?

Back

Heat transfers from the warmer drink (soda) to the colder ice, causing the drink to cool down.

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 example of convection in everyday life?

Back

An example of convection is the movement of warm air rising and cool air sinking in a room.

Front

How does the Sun heat the Earth?

Back

The Sun heats the Earth primarily through radiation, as sunlight travels through space and warms the Earth's surface.