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Work, Power, and Mac
Question | Answer |
---|---|
Energy may change form, but it cannot be created or destroyed | Law of Conservation of Energy |
Transfer of energy that occurs when a force makes an object move | Work |
The rate at which work is done | Power |
Machine that does work with only one movement of the machine | Simple Machine |
Two or more simple machines that operate together | Compound Machine |
The force applied to machine | Input Force |
The force applied by the machine | Output Force |
The ratio of the output force to the input force | Mechanical Advantage |
Measure of how much work put into useful output work by the machine | Efficiency |
Unit for Work | Joules (J) |
Unit for Power | Watts (W) |
Unit for Force | Newton (N) |
Force X Distance | Work |
Work/Time | Power |
Mass x Acceleration | Force |