Heat, thermal energy, and temperature

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature, resulting in no net heat transfer between them.

Front

What is the definition of heat?

Back

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

Front

What is thermal energy?

Back

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

Front

What happens to thermal energy when ice melts?

Back

When ice melts, thermal energy is transferred from the warmer hand to the ice, causing it to change from solid to liquid.

Front

What is the direction of heat transfer?

Back

Heat always transfers from a region of higher temperature to a region of lower temperature.

Front

What is the difference between temperature and thermal energy?

Back

Temperature is a measure of the average kinetic energy of particles in a substance, while thermal energy is the total energy of all the particles.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where faster-moving particles transfer energy to slower-moving particles.

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 heat in the form of electromagnetic waves, such as infrared radiation, and does not require a medium.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of one kilogram of a substance by one degree Celsius.