G63 Conduction, Convection, & Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one through molecular collisions.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation. It does not require a medium to travel through.

Front

How does heat transfer occur from a hot object to a cold object?

Back

Heat transfers from a hot object to a cold object through conduction, convection, or radiation, following the principle that heat moves from areas of high temperature to areas of low temperature.

Front

What is an example of conduction in everyday life?

Back

An example of conduction is when you touch a hot stove and feel the heat transfer to your hand.

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What is an example of convection in everyday life?

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An example of convection is boiling water in a pot, where the hot water rises to the top and cooler water sinks to the bottom.

Front

What is an example of radiation in everyday life?

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An example of radiation is feeling the warmth of the sun on your skin, even when you are not in direct contact with it.

Front

What happens to the temperature of a substance when it absorbs heat?

Back

When a substance absorbs heat, its temperature increases as the energy causes the molecules to move faster.

Front

What happens to the temperature of a substance when it loses heat?

Back

When a substance loses heat, its temperature decreases as the energy is transferred away, causing the molecules to move slower.

Front

What is the primary way heat travels through solids?

Back

The primary way heat travels through solids is conduction.