Energy & Heat Transfer

Front

What is UV Radiation?

Back

UV Radiation is a type of electromagnetic radiation that can cause sunburns and skin cancer.

Front

What happens to cold air?

Back

Cold air sinks because it is more dense than warm air.

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from a hotter object to a cooler one.

Front

What type of heat transfer occurs when cooking food using direct heat from a fire?

Back

Radiation is the type of heat transfer that occurs when cooking food using direct heat from a fire.

Front

What type of heat transfer is used by a fan to cool air?

Back

Convection is the type of heat transfer used by a fan to cool the air.

Front

Define conduction.

Back

Conduction is the transfer of heat through direct contact between materials.

Front

Define convection.

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

Define radiation.

Back

Radiation is the transfer of heat in the form of electromagnetic waves.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred between objects due to a temperature difference, while temperature is a measure of the average kinetic energy of particles in a substance.