Physical Science - Chapter 14 

Energy

14A Classifying Energy

• Energy

  • %%Energy%%: the ability to do work

  • %%Kinetic Energy%%: energy that an object possesses due to its motion

  • %%Potential Energy%%: stored energy that can be used later

14B Energy Changes

• %%Mechanical Energy%%: the sum of the kinetic energy and all the forms of potential in a system

14C Energy Resources

• %%Renewable Energy Resource%%: an energy resource that is easily replaced by natural methods

• %%Nonrenewable Energy%%: an energy resource that is not replaced naturally

• %%Fossil Fuel%%: a fuel that has formed from the remains of plants and animals that lived in the past, including coal, petroleum oil, and natural gas

• %%Nuclear Energy%%: energy produced by nuclear reactions

• Renewable Energy Resources:

  • %%Biomass Energy%%: chemical potential energy obtained from renewable organic materials

  • %%Hydroelectric Energy%%:electric energy generated by the movement of water

  • %%Geothermal Energy%%: energy derived from the heat in the interior of the earth

  • %%Solar Energy%%: energy produced by the sun

  • %%Tidal energy%%: mechanical energy in rising and falling tides

  • %%Wind Energy%%: energy from the wind can be used to turn turbine blades that are attached to generators