Heat and Energy – Notes

Heat – Transfer of Heat

Heat flows from a hotter object to a colder object.

He heat flows a hot body is gradually transferred the particles of the surrounding air that are comparatively cooler.

The process by which heat is transferred from the hotter part to the colder part of an object, without the movement of the particles of that object, is known as conduction. Conduction occurs only in solids.

Materials that do not allow heat to pass through them are called conductors.

Convection is the transfer of heat by the movement of particles of the medium from one place to another. Convection takes place only in liquids and gases.

The weather in coastal areas is generally temperate because of land and sea breezes.