Work and Power worksheet

Define
Work……………………………………………………………………………………………………………
……………………………………………………………………………………………………………………
Joule……………………………………………………………………………………………………………
……………………………………………………………………………………………………………………
Power………………………………………………………………………………………………………….
……………………………………………………………………………………………………………………
Watt……………………………………………………………………………………………………………
……………………………………………………………………………………………………………………
Fill in the blank:
1-the unit used to express work is ………
2- the unit used to express power is ……..
3- transferring of energy to an object by using a forec moving in the direction of the force is ……………
4- the relationship used to express work is (………..*………….)
5- the watt equal to (………..per…………..)
Answer)?
What is the equation of work?
What is the equation of power?
Explain why work is not done when you push the wall ?
What are the two things happen to say the work is done?
Calculate?


2- A force of 70 N moved a object a distance of 7 m . calculate the work.
1 - How much work is done by a crane that lowers 1,000 newtons of material a distance of 150 meters?
3. 3- A horse performs 15000 joules of work pulling a wagon for 20 seconds. What is the horse's power?
4- if you did 150 J of work in 25. What was your power output
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