Physics

conduction- without moving the substance, metals are a good conductor. Insurators are materials which have few or free electrons. 

convection- the movement of partiles, occours in liquids and gases creating convection currents. 

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  • Created by: Victoria
  • Created on: 03-06-13 17:40

rate of energy transfer and heating and insulating

This depends on the surface area and volume, material or nature of the object. 

Example- A desert fox has bigger ears than a artic fox to allow a more efficient way of getting rid of unwanted energy. 

You can calculate the amount of energy lost from buildings from their U-values 

the lower the U-value the better the material is as an insulator

Solar panels may contain water heated by the sun, this can be used to heat buildings or provide hot water. 

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