Heat transfer

Conduction, Convection and Radiation


Heat can be transferred by conduction. When an object is heated the particles in the object begin to vibrate. These vibrations are passed on through the object. Transferring the heat from one end to the other.

An example of conduction in everyday life is when a saucepan transfers heat through the particles of the metal all through the saucepan and when someone touches the sauce pan it would be hot.

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Heat can be transferred from one place to another via convection. In convection hotter particles rise and cooler particles fall circulating heat.

An example of convection in everyday life is a hot air balloon the heater inside the balloon heats the air and so the air moves upward. This causes the balloon to rise because the hot air gets trapped inside. When the hot air balloon to comes down it releases hot air and cool air takes it place, causing the balloon to lower.