Chapter 15 study guide Physical Science

Energy
Ability to do work
Work
Transfer of energy
Kinetic Energy
The energy of motion (1/2mv2)
Potential Energy
Energy that is stored (mgh)
Gravitational potential energy
PE that depends on the objects height
Elastic potential energy
PE of an object that is stretched or compressed
Mechanical energy
Energy associated with the motion and position of everyday objects
Thermal energy
The total energy related to the motion and position of everyday objects
Chemical energy
Energy stored in chemical bonds
Electrical energy
Energy associated with electric charges
Electromagnetic energy
Form of energy that travels through space in a form of waves
Nuclear energy
Energy stored in atomic nuclei
Energy conversion
Energy can be converted from one to another
Law of conservation of energy
Energy cannot be created or destroyed
Einsteins equation
E=mc2
Nonrenewable energy resources
Existed in limited quantities and once used cannot be replaced. Oil, natural gas, coal, and uranium
Fossil fuels
Oil, natural gas, coal are known as fossil fuels because they were formed underground from the remains of once living organisms
Renewable energy resources
Resources that can be replaced. Hydroelectric, solar, geothermal, wind, biomass, fusion
Hydroelectric
Energy obtained from flowing water
Solar energy
Sunlight that is converted into usable energy
Geothermal energy
Thermal energy beneath Earths surface
Biomass energy
Chemical energy stored in living things. Wood, corn stalks, ethanol
Energy conservation
Finding way to use less energy or use he energy more efficiently