This document discusses different forms of energy: light energy from the sun or artificial sources that allows us to see; chemical energy released during chemical reactions like fuel burning in cars; sound energy that travels as vibrations; kinetic energy from moving objects; electrical energy that powers machines; and thermal energy that flows from warm to cool substances and provides heat. It also categorizes energy sources as renewable (solar, wind, water, biomass, geothermal) or non-renewable (fossil fuels like coal, oil, natural gas and uranium used for nuclear power), noting their uses and environmental impacts. In addition, it briefly covers static electricity in charged objects and current/static electricity, as well as magnetism involving magnetic