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 particles in an object.

Front

How does heat move between objects?

Back

Heat always moves from hot to cold objects.

Front

What happens to molecules when heat is added?

Back

When heat is added, the molecules begin to move faster.

Front

What is absolute zero?

Back

Absolute zero is the lowest possible temperature where molecular motion stops, defined as 0 Kelvin or -273.15°C.

Front

What is the relationship between temperature and molecular movement?

Back

As temperature increases, the movement of molecules increases.

Front

What happens to the temperature when two objects at different temperatures come into contact?

Back

The temperature of both objects will eventually equalize to a temperature between the two initial temperatures.

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).

Front

What is radiation?

Back

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

Front

What is the freezing point of water?

Back

The freezing point of water is 0°C (32°F).