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 particles in a solid?

Back

In a solid, particles are closely packed together and vibrate in place.

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position or state.

Front

How does thermal energy transfer occur?

Back

Thermal energy can transfer through conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids and gases).

Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as heat from the sun.

Front

What happens to the temperature of a substance when thermal energy is added?

Back

When thermal energy is added, the temperature of the substance generally increases.

Front

What is the state of matter of water at 0°C?

Back

At 0°C, water can exist as both a solid (ice) and a liquid, depending on the conditions.

Front

What is the principle of thermal expansion?

Back

Thermal expansion is the tendency of matter to change in volume in response to a change in temperature.