thermal energy

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the molecules in a substance.

Front

What happens to molecules at absolute zero?

Back

At absolute zero, which is 0 Kelvin or -273.15°C, the motion of molecules theoretically comes to a complete stop.

Front

Which color represents the slowest moving molecules?

Back

Blue represents the slowest moving molecules, as it is associated with lower energy states.

Front

How does heat transfer occur?

Back

Heat always moves from hot to cold areas until thermal equilibrium is reached.

Front

What happens to molecules when heat is added?

Back

When heat is added to a substance, its molecules begin to move faster.

Front

What is the relationship between temperature and molecular motion?

Back

As temperature increases, the motion of molecules increases, leading to higher thermal energy.

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 and 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 significance of thermal equilibrium?

Back

Thermal equilibrium occurs when two objects reach the same temperature and no heat flows between them.