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, like when you touch a hot stove.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It happens when warmer parts of a fluid rise and cooler parts sink, creating a cycle.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium, so heat from the sun reaches us through space.

Front

Example of conduction in everyday life?

Back

An example of conduction is when a metal spoon gets hot after being left in a pot of boiling water.

Front

Example of convection in cooking?

Back

An example of convection is when macaroni rises and falls in boiling water due to the movement of hot and cold water.

Front

Example of radiation in nature?

Back

An example of radiation is the warmth we feel from sunlight on our skin.

Front

How does conduction occur in solids?

Back

In solids, conduction occurs as particles vibrate and transfer energy to neighboring particles.

Front

How does convection occur in liquids?

Back

In liquids, convection occurs as warmer, less dense liquid rises while cooler, denser liquid sinks, creating a current.

Front

How does radiation travel?

Back

Radiation travels in waves and can move through empty space, unlike conduction and convection.

Front

What is a common misconception about conduction?

Back

A common misconception is that conduction can occur without direct contact; however, it requires physical contact between materials.