Examples Fridge magnets, compasses and maglev trains which use magnetic levitation. Energy store Thermal Description In most cases this is the vibrations of the particles in the object.

For example, the specific heat capacity of water ... The specific heat capacity for copper is 385 J/kg°C. Calculate the thermal energy change when the temperature of 2.00 kg of copper is changed ...

The operation of heat pumps requires a source of thermal energy. Typically, air or the ground is used, but there is also potential for other media, such as river water or seawater. For example ...