Vocab 3 Flashcards
Efficiency
Ratio of the output work done by the machine to the input work done on the machine expressed as a centage
Work
Transfer of energy when a force is applied over a distance measured in joules
Mechanical advantage
Ratio of the output force exerted by a machine to the input force applied to the machine
Energy
The ability to cause change,measured in joules
System
A region or set of regions around which a boundary can be defined
Kinetic energy
Energy a moving object has because of its motion determined by the mass and speed of the object
Potential energy
Energy that is stored due to the interactions between objects
Elastic potential
energy
Stored by compressing or stretching an object
Chemical potential energy
Due to chemical bonds
Gravitonal potential energy
Dues to gravitational force between objects
Law of conservation of energy
States that energy cannot be created or destroyed
