Thermodynamics

Front

What is thermal energy?

Back

Thermal energy refers to the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in a substance.

Front

What is heat?

Back

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

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 and density.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, which can occur in a vacuum.

Front

How does heat travel from the sun to the earth?

Back

Heat travels from the sun to the earth by the process of radiation.

Front

What is the difference between conduction and convection?

Back

Conduction involves direct contact between materials, while convection involves the movement of fluids.

Front

Can thermal energy be transferred in a vacuum?

Back

Yes, thermal energy can be transferred in a vacuum through radiation.

Front

What is the role of insulation in thermal energy transfer?

Back

Insulation reduces the transfer of heat between objects, helping to maintain temperature.

Front

What happens to thermal energy in a cold room?

Back

A hot object, like a cup of tea, will lose thermal energy to the colder surroundings until thermal equilibrium is reached.