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.

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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

An ice cube melting in a person's hand is an example of conduction, where heat is transferred from the hand to the ice.

Front

Example of convection in everyday life?

Back

Boiling water in a pot is an example of convection, where hot water rises and cooler water sinks, creating a circular motion.

Front

Example of radiation in everyday life?

Back

The warmth felt from the sun on your skin is an example of radiation, where heat is transferred through electromagnetic waves.

Front

How does a metallic cover on a car windshield work?

Back

It reflects the sun’s rays away from the windshield, helping to keep the car cool.

Front

What happens to a car's temperature on a sunny day?

Back

A car’s inside temperature can rise significantly due to radiation from the sun, even if the outside temperature is moderate.

Front

What is the role of insulation in heat transfer?

Back

Insulation reduces heat transfer by conduction, convection, and radiation, helping to maintain temperature in buildings and appliances.

Front

How does heat transfer affect weather patterns?

Back

Heat transfer through convection in the atmosphere contributes to weather patterns, such as wind and storms.