Conduction, Convection, Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when two objects at different temperatures touch each other.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a circulation pattern.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can travel through empty space. An example is the heat from the sun.

Front

Example of conduction in everyday life?

Back

Ironing a shirt is an example of conduction, where heat is transferred from the iron to the fabric.

Front

Example of convection in everyday life?

Back

Boiling water is an example of convection, where hot water rises to the top and cooler water sinks.

Front

Example of radiation in everyday life?

Back

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

Front

What happens to warm air in a room?

Back

Warm air rises because it is less dense than cooler air, creating convection currents.

Front

How does a spoon get hot when stirring hot coffee?

Back

The spoon gets hot due to conduction, as heat is transferred from the hot coffee to the spoon.

Front

What is the main difference between conduction and convection?

Back

Conduction requires direct contact between materials, while convection involves the movement of fluids.

Front

What is an example of heat transfer through radiation?

Back

The heat you feel from a campfire is an example of heat transfer through radiation.