Front

What is thermal energy?

Back

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

Front

What happens to thermal energy when two objects at different temperatures come into contact?

Back

Thermal energy will transfer from the hotter object to the cooler object until they reach thermal equilibrium.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact no longer transfer thermal energy to each other because they are at the same temperature.

Front

What is conduction?

Back

Conduction is the process of heat transfer 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 sunlight.

Front

What is the role of temperature in thermal energy transfer?

Back

Temperature determines the direction of thermal energy transfer; heat flows from higher temperature to lower temperature.

Front

What is a thermal insulator?

Back

A thermal insulator is a material that does not conduct heat well, reducing the transfer of thermal energy.

Front

What is a thermal conductor?

Back

A thermal conductor is a material that allows heat to pass through it easily, facilitating the transfer of thermal energy.

Front

How does the mass of an object affect its thermal energy?

Back

The thermal energy of an object increases with its mass if the temperature remains constant, as more particles contribute to the total energy.