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Chapter 4 Vocabulary
Term | Definition |
---|---|
Work | Force applied through a distance. |
Machine | A device that changes the force or increases the motion from work. |
Simple Machine | A machine that does work with only one movement of a machine. |
Compound Machine | A combination of two or more simple machines,. |
Efficiency | The ratio of output work to input work. |
Mechanical Advantage | The ratio of the output force to input force. |
Energy | The ability to cause change. |
System | Anything around which you can imagine a boundary. |
Kinetic Energy | Energy due to motion. |
Potential Energy | Energy that is stored due to the interactions between objects. |
Elastic Potential Energy | Energy that is stored by compressing or stretching an object. |
Chemical Potential Energy | Energy that is die to chemical bonds. |
Gravitational Potential Energy | Energy that is due to gravitational forces between objects. |
Law of Conservation of Energy | States that energy cannot be created or destroyed. |
Mechanical Energy | The sum of the kinetic energy and potential energy of the objects in a system. |
Power | The rate at which energy is converted. |