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ch.15 science
mrs. B science class
| Question | Answer |
|---|---|
| Energy | is the ability to do work. In other words, energy is transferred by a force moving an object through a distance. |
| kinetic energy | energy of motion |
| Potential energy | energy that is stored as a result of position or shape |
| gravitational potential energy. | Potential energy that depends upon an object's height |
| elastic potential energy | The potential energy of an object that is stretched or compressed |
| mechanical energy | The energy associated with the motion and position of everyday objects |
| thermal energy. | The total potential and kinetic energy of all the microscopic particles in an object make up |
| Chemical energy | the energy stored in chemical bonds |
| Electrical energy | is the energy associated with electric charges |
| Electromagnetic energy | a form of energy that travels through space in the form of waves |
| nuclear energy | The energy stored in atomic nuclei |
| energy conversion | The process of changing energy from one form to another |
| Nonrenewable energy resources | exist in limited quantities and, once used, cannot be replaced except over the course of millions of years |
| fossil fuels | underground from the remains of once-living organisms |
| Renewable energy resources | resources that can be replaced in a relatively short period of time. |
| hydroelectric energy | Energy obtained from flowing water is known |
| solar energy | Sunlight that is converted into usable energy |
| biomass energy | The chemical energy stored in living things |
| hydrogen fuel cell | generates electricity by reacting hydrogen with oxygen |
| energy conservation | . Finding ways to use less energy or to use energy more efficiently |