Be sure to show all calculation work in the space provided. Power work.
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If the pump s power output is 250 horsepower how long will it take to pump all 3000 gallons to reservoir.
Work and power worksheet pdf. But whatever fuel you use you are buying something with the. Power is measured in. At present this fuel could be petrol or alcohol or diesel fuel.
It is the rate of work done or rate of energy transfer. Work is a scalar quantity. E p 7 95j.
We define power as. If the trip takes 7s to complete calculate the person s power. Work energy and power this worksheet and all related files are licensed under the creative commons attribution license.
P f x d t power is measured in watts. You must exert a force of 4 5 n on a book to slide it across a table. Pf1 5 work energy and power page 2 of 5 june 2012 note.
Work power worksheet author. Power work done time taken and using symbols we write this as. Rule for power power work time in watts in joules in seconds p w t questions 1.
For instance when a block is being pulled with tension t by a string whose angle of inclination is θ to the horizontal. In the past the fuel could just possibly have been coal. Energy work and power energy if you own a car it will not move without fuel.
The concept of power is concerned with how rapidly energy is being transferred or transformed when work is done. What work has been done. If you do 2 7 j.
A person of mass 70kg runs up a flight of stairs with a vertical height of 5m. No body last modified by. Worksheet work power and energy sections 9 1 9 6 1 what is the power of a crane that does 5 80 x 104 j of work in 2 80 s.
Wd e p mgh 70 x 10 x 5 3500j. P 2 07 104watts 2 a 0 45 kg book sits on a shelf 1 80 m above the floor. 1 25 2014 4 58 00 pm company.
Much work is done express your answer in both english and metric units of work. Power is the rate at which is done. Power is measured in joules per second j s r o watts w and is worked out using the formula.
Work and power worksheet answer each question by calculating for the missing variable. And in the future it could be hydrogen or electricity stored in a battery. The unit of work is the joule j consider a force that acts at an angle.
Please circle your final answer and be sure it has the proper label. A ball with a weight of 30 newtons is kicked 2 metres into the air. In physics power is associated with energy and has a precise meaning.
A calculate the gravitational potential energy of the book relative to the floor. Work power worksheet. Why are both energy and work measured in joules.
Work energy and power worksheet pdf.
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