thermal energy

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 the kinetic energy of molecules as temperature increases?

Back

As temperature increases, the kinetic energy of molecules increases, causing them to move faster.

Front

What is absolute zero?

Back

Absolute zero is the theoretical temperature at which all molecular motion stops, equivalent to -273.15°C or 0 Kelvin.

Front

How does heat transfer occur?

Back

Heat transfer occurs through 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.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.

Front

What is the relationship between temperature and molecular movement?

Back

Higher temperatures result in faster molecular movement, while lower temperatures result in slower movement.

Front

Can energy be created or destroyed?

Back

No, energy cannot be created or destroyed; it can only be transformed from one form to another.

Front

What is the significance of the phrase 'heat energy is transferred'?

Back

It means that heat moves from a warmer object to a cooler one until thermal equilibrium is reached.