Thermal Energy Concepts

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of all particles in a substance.

Front

What happens when you add or remove heat from a system?

Back

Adding or removing heat from a system may result in a change of state.

Front

Define heat.

Back

Heat is the energy transferred from an object at a higher temperature to an object at a lower temperature.

Front

What is the difference between heat and temperature?

Back

Temperature is related to the average kinetic energy of particles, while heat is the energy transferred between objects due to a temperature difference.

Front

Define calorie.

Back

A calorie is the amount of energy needed to raise the temperature of 1 gram of water by 1 degree Celsius (1°C).

Front

Define conduction.

Back

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

Front

Define insulator.

Back

An insulator is a material that does not allow thermal energy to pass through it easily.

Front

What is the relationship between molecular motion and thermal energy?

Back

The greater the molecular motion of the particles, the greater the thermal energy.

Front

How is heat measured in terms of energy?

Back

Heat is measured in Joules (J) because it is a form of energy.

Front

What is the role of temperature in thermal energy?

Back

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