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