Heat and Temperature

Front

What is heat?

Back

Heat is a form of energy that is transferred between objects due to a temperature difference.

Front

What is temperature?

Back

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

Front

How do molecules in cold substances move compared to hot substances?

Back

Molecules in cold substances move more slowly than in hot substances.

Front

What is specific heat?

Back

Specific heat is the amount of energy needed to raise the temperature of 1 kg of a substance by 1°C.

Front

What is thermal energy?

Back

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

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) due to differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of energy by electromagnetic waves.

Front

What happens to warm air in a room?

Back

Warm air rises because it is less dense than cooler air.

Front

What is the direction of heat flow when holding a hot object?

Back

Heat flows from the hot object to the cooler object (e.g., from a hot cup to your hand).