Energy

potential energy. When the water begins to fall, its potential energy is changed into kinetic energy. This change in energy also happens at Niagara Falls where it is used to provide electricity from the transformation of mechanical and electromagnetic energy to parts of the northeastern United States. List five exaples of potential energy. 1.**Chemical Energy** 2. **Mechanical Energy** 3.**Nuclear Energy** 4.**Gravitational Energy**
 * Kinetic energy** is energy of motion. A rubber band flying through the air has kinetic energy. When you are walking or running your body is exhibiting kinetic energy.**Potential energy is converted into kinetic energy**. Before the yo-yo begins its fall it has stored energy due to its position. At the top it has its maximum potential energy. As it starts to fall the potential energy begins to be changed into kinetic energy. At the bottom its potential energy has been converted into kinetic energy so that it now has its maximum kinetic energy. A waterfall has both potential and kinetic energy. The water at the top of Bridal Veil Falls has stored

List five examples of kinetic energy. 1.**Radiant Energy** 2.**Thermal Energy** 3.**Motion Energy**




 * Wind energy! [[image:http://t2.gstatic.com/images?q=tbn:WSWW21AkDCSS_M:http://www.sulangaenergy.com/images/wind-turbines-370-x-283.jpg width="122" height="93" link="http://www.google.com.au/imgres?imgurl=http://www.sulangaenergy.com/images/wind-turbines-370-x-283.jpg&imgrefurl=http://www.sulangaenergy.com/&usg=__8utw0YaNjXzHbW7vNcqencq_OyY=&h=283&w=370&sz=36&hl=en&start=4&itbs=1&tbnid=WSWW21AkDCSS_M:&tbnh=93&tbnw=122&prev=/images%3Fq%3Dwind%2Bturbines%26hl%3Den%26safe%3Dactive%26gbv%3D2%26tbs%3Disch:1"]] **
 * Wind turbines generate power. **
 * Wind mills have been used for centuries, usually to pump water. **
 * Wind is so strong it is able to lift roofs off buildings and blow down power lines. **
 * Most of the new wind machines do not remotely resemble the traditional windmill but all of them still have rotors or blades connected to electricity generators. **

Renewable and Non-renewable energy. Renewable energy comes from natural resources that can be reproduced. Non-renewable energy comes from natural resources that can’t be reproduced. Some types of renewable energy are: Wind, solar, biomass, geothermal and water. Some types of non-renewable energy are: coal, gas, nuclear and oil.

Solar energy. Solar energy is from the sun. Less than 0.1% of our heating, transportation and power energy through direct sunlight so it’s possible to meet all our energy needs with this simple renewable resource

Hydro energy Hydro energy is electricity made by water. Hydro doesn’t produce any greenhouse gases but it still hurts environment because you need to cut down trees to build turbines.