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work,power,machines
Rules for work power and machines
Question | Answer |
---|---|
Work depends on | force applied and distance moved |
work is said to be done when | force produces motion in the direction of applied force |
Power depends on | the amount of work done, and the time taken |
power is | the rate of doing work |
To increase power | decrease either work or time |
A machine is | a device that makes our work easy by changing the amount or direction of force |
work input | the work that you are doing on the machine |
work output | the work that is coming on the object from the machine |
force input | the force that you are putting on the machine |
force output | the force that the machine is putting on the object |