Thermal Energy

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 are conductors?

Back

Conductors are materials that allow heat to flow through them easily, such as metals like copper and aluminum.

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What are insulators?

Back

Insulators are materials that do not conduct heat well, such as plastic, wood, and rubber.

Front

What is conduction?

Back

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

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What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.

Front

Example of conduction in everyday life?

Back

An ice cube melting in a person's hand is an example of conduction.

Front

Example of convection in everyday life?

Back

A lava lamp is an example of convection, where colored liquids rise and fall due to temperature differences.

Front

Example of radiation in everyday life?

Back

The sun heating the Earth is an example of radiation.

Front

What happens to particles in a substance when it is heated?

Back

When a substance is heated, its particles gain energy, move faster, and spread apart, increasing the temperature.