Forms of Energy conversions

Solar energy gets to the earth as light and heat energy.

Plants trap the light energy and convert it to chemical energy.

The chemical energy in plant is taken by man and is converted to mechanical energy.

In another way, energy from the sun helps in the formation of the water cycle. We take advantage of the water cycle to generate electricity (electrical energy). The electrical energy is then converted to light and heat energy.

In another case, solar energy can be converted directly to electrical energy using solar cells.

Wind energy is converted by windmill device to mechanical energy. This is used to grind maize, wheat, or some other items.

Home-work: When batteries are used in torchlight, which energy conversions have taken place.