The concept of power is concerned with how rapidly energy is being transferred or transformed when work is done. Work energy and power.
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Calculate the work done by a 47 n force pushing a pencil 0 26 m.
Work power and energy worksheet pdf. Be sure to show all calculation work in the space provided. Work energy and power page 1 work power and energy worksheet work and power 1. In physics power is associated with energy and has a precise meaning.
Please circle your final answer and be sure it has the proper label. We call this rule conservation of energy. Energy can t be created or destroyed it can only be changed from one type into another type.
It is the rate of work done or rate of energy transfer. You must exert a force of 4 5 n on a book to slide it across a table. P 2 07 104watts 2 a 0 45 kg book sits on a shelf 1 80 m above the floor.
Energy work and power page 1 of 2 worksheet. When a force moves. Calculate the work done by a 2 4 n force pushing a 400.
Work work and energy are the same thing. The potential energy an object has due to its position is called potential energy. Calculate the work done by a 47 n force pushing a 0 025 kg pencil 0 25 m against a force of 23 n.
Lin 1 show all work for the following questions including the equation and substitution with units. Potential energy problems fill in the blank. The think sheets are synchronized to readings from the physics classroom tutorial and to missions of the minds on physics program.
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. The more mass an object has the more less potential energy it has. Pf1 5 work energy and power page 1 of 5 june 2012.
A calculate the gravitational potential energy of the book relative to the floor. Work energy and power in this section of the transport unit we will look at the energy changes that take place when a force acts upon an object. E p 7 95j.
G sandwich across a table 0 75 m. Teachers may print the entire packet or individual think sheets and use them freely with their classes. If you do 2 7 j.
Some of the worksheets below are work power and energy free worksheets different forms of energy the principle of conservation of energy questions with answers. Work and power worksheet answer each question by calculating for the missing variable. Energy exists in many different forms eg kinetic energy e k potential energy u g electrical energy and elastic or spring energy e s.
An 80 n force has been applied to a block and move it 20 m along the direction of the force. Physics worksheet work and energy section. Work energy and power the following pdf files represent a collection of classroom ready think sheets pertaining to the topic of motion in one dimension.
How much work has been done to the block. Potential energy is the energy matter has as a result of its or. Power is measured in joules per second j s r o watts w and is worked out using the formula.
A fundamental principle of nature is that energy cannot be created or destroyed only transformed or transferred.
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