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Chpt 15
Energy
| Question | Answer |
|---|---|
| Ability to do work | Energy |
| How are work and energy related? | Work is a transfer of energy-when work is done on an object, energy is transferred to that object |
| Energy of motion | Kinetic |
| Kinetic energy (KE)=? | 1/2mv |
| What factors does kinetic energy of an object depend on? | Mass and speed |
| Energy that is stored as a result of position or shape | Potential |
| Potential energy that depends upon an objects height | Gravitational potential energy |
| How is gravitational potential energy determined? | Mass, height and acceleration due to gravity |
| Potential energy (PE)=? | mgh |
| Potential energy that is stretched or compressed | Elastic potential energy |
| The major forms of energy are (6): | Mechanical, Thermal, Chemical, Electrical, Electromagnetic, Nuclear |
| Energy associated with motion and position of everyday objects | Mechanical |
| Total potential and kinetic of all microscopic particles in an object | Thermal |
| Energy stored in chemical bonds | Chemical |
| Energy associated with electric charges | Electrical |
| Form of energy that travels through space in the form of waves | Electromagnetic |
| Energy stored in atomic nuclei | Nuclear |