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Physics-Work/Power
Question | Answer |
---|---|
Joule | unit of work |
Watt | SI unit of power |
Power | rate of doing work (work divided by time) |
Work output | cannot be greater than work input |
How can machine make work easier? | multiplying the force you apply |
Pulley system reduces effort force by… | increasing distance where the force is applied |
Compound machine | two or more simple machines that operate together |
Work | transfer of energy |