Thermal Energy, Heat and Temperature

Front

What is thermal energy?

Back

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

Front

What is the difference between heat and temperature?

Back

Heat is the transfer of thermal energy from one object to another, while temperature is a measure of the average kinetic energy of the particles in an object.

Front

What happens to particles in an object as it heats up?

Back

As an object heats up, its particles move faster and spread apart, increasing the object's thermal energy.

Front

What is the freezing point of water in Celsius?

Back

0°C is the freezing point of water.

Front

What is the boiling point of water in Celsius?

Back

100°C is the boiling point of water.

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) caused by differences in temperature.

Front

What is radiation?

Back

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

Front

How does the number of particles affect thermal energy?

Back

The more particles an object has at a given temperature, the more thermal energy it has.

Front

What is absolute zero?

Back

Absolute zero is the theoretical temperature at which all particle motion stops, defined as 0 Kelvin or -273.15°C.