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Animals are almost the same as human in energy transformations. They change food into thermal and mechanical energy. Due to this constant temperature is maintained in a body and animals are able to move.
Solar panels transform the energy from the light of the Sun into electricity. A roller coaster provides a good example of energy transformation. An example of potential energy is a ball at the top of a hill. Windmills harness the energy of the wind and convert it into mechanical energy and then to electrical energy.