Amplify Thermal Energy

Front

What is thermal energy?

Back

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

Front

What happens to the kinetic energy of hot air when it comes into contact with cold air?

Back

The hot air will lose kinetic energy.

Front

What is the direction of energy transfer between hot and cold samples?

Back

Energy is always transferred from the hotter sample to the colder sample.

Front

What occurs when two objects at different temperatures come into contact?

Back

Some of the molecules in both samples will have different kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

Front

What is the effect of temperature on the movement of particles in a substance?

Back

As temperature increases, the particles move faster and have more kinetic energy.

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 energy through electromagnetic waves, such as sunlight.

Front

How does thermal energy affect the state of matter?

Back

Increasing thermal energy can change a substance from solid to liquid (melting) or from liquid to gas (evaporation).