Thermal Energy and Heat Transfer Flashcard

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.

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What is heat?

Back

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

Front

What is convection?

Back

Convection is the transfer of heat through a fluid (liquid or gas) caused by the movement of the fluid itself.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, without the need for a medium.

Front

What is thermal expansion?

Back

Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature.

Front

What happens to particles when a substance is heated?

Back

When a substance is heated, its particles gain energy and move faster, causing the substance to expand.

Front

What is the difference between heat and temperature?

Back

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

Front

What is a conductor?

Back

A conductor is a material that allows heat to pass through it easily, such as metals.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of heat, such as rubber or glass.