Radiation, Convection, Conduction

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when faster-moving particles collide with slower-moving ones, transferring energy.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or 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. It does not require a medium to travel through, allowing heat to be transferred through empty space.

Front

Example of conduction in everyday life?

Back

When you touch a hot stove, heat is conducted from the stove to your hand.

Front

Example of convection in everyday life?

Back

When boiling water, the hot water at the bottom rises to the top while cooler water descends, creating a convection current.

Front

Example of radiation in everyday life?

Back

Feeling the warmth of the sun on your skin is an example of heat transfer through radiation.

Front

What happens to the temperature of an object when it absorbs heat?

Back

The temperature of the object increases as it absorbs heat energy.

Front

What happens to the temperature of an object when it loses heat?

Back

The temperature of the object decreases as it loses heat energy.

Front

How does heat transfer affect the state of matter?

Back

Heat transfer can cause changes in the state of matter, such as melting (solid to liquid) or boiling (liquid to gas).

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.