Heat and Thermal Energy

Front

What is temperature?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, which depends on the number of particles and their temperature.

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object to another due to a temperature difference.

Front

In which direction does heat transfer occur?

Back

Heat transfer occurs only from warm objects to colder ones.

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.

Front

What happens to particles in a substance as it heats up?

Back

As a substance heats up, its particles move faster and spread apart.

Front

What is the freezing point of water?

Back

The freezing point of water is 0 degrees Celsius (32 degrees Fahrenheit).

Front

What is the relationship between temperature and thermal energy?

Back

The higher the temperature of an object, the more thermal energy it has.