Work Practice Problems Show all work! No naked numbers! 1) Amy uses 20N of force to push a lawn mower 10 meters. How much work does she do? 2) How much work does an elephant do while moving a circus wagon 20 meters with a pulling force of 200N? 3) Alex applies 350 N of force to move his stalled car 40 m, how much work did Alex do?

Worksheet - Work & Power Problems I. Work A. Sample Problems: 1. F = 200 Newtons Formula: _____ d = 50 meters Substitution: _____ W = ? Answer with unit of measure: _____ 2. F = 5 Newtons Formula: _____

Work and Power Worksheet Answer each question by calculating for the missing variable. Be sure to show all calculation work in the space provided. Please circle your final answer and be sure it has the proper label. 1. You must exert a force of …

WORKSHEET- WORK, ENERGY, POWER A. WORK (1 Mark Questions) 1. An artificial satellite is at a height of 36,500km above earth’s surface. What is the work done by earth’s gravitational force in keeping it in its orbit? _____ _____ 2. A body is being raised to a height h from the surface of earth. What is the sign of work

Work, Energy and Power – page 1 Work, Power and Energy Worksheet Work and Power 1. Calculate the work done by a 47 N force pushing a pencil 0.26 m. 2. Calculate the work done by a 47 N force pushing a 0.025 kg pencil 0.25 m against a force of 23 N. 3. Calculate the work done by a 2.4 N force pushing a 400. g sandwich across a table 0.75 m ...

Work & Power Practice Problems Name: _____ Physical Science Date: _____ Directions: Show work for all questions. Round all answers to the nearest tenth. 1. Amy uses 20N of force to push a lawn mower 10 meters. How much work does she do? 2.

Work is done when a force moves an object or changes its direction. It is measured in . W = F X s . Power is the rate at which measured in . Power = Work / Time (in Watts) is done. Power is. 1. Why are both energy and work measured in Joules? 2. A ball with a weight of 30 Newtons is kicked 2 metres into the air.

Read from Lesson 1 of the Work, Energy and Power chapter at The Physics Classroom: http://www.physicsclassroom.com/Class/energy/u5l1a.cfm http://www.physicsclassroom.com/Class/energy/u5l1aa.cfm

Work, Power, & Efficiency Worksheet Equations to use: /WW=F*d P=W/t Efficiency=(W out in)x100 For Ideal Machines: W in = W out Answer on a separate sheet of paper. Show ALL of your work. Use the GUESS or GUPPiES3 method. 1. You move a refrigerator up a 10 meter high staircase. This requires a force of 90 N.

Work is the amount of force applied to an object (in the same direction as the motion) over a distance. By measuring how much force you have used to move something over a certain distance, you can calculate how much work you have accomplished. A joule of work is actually a newton·meter; both units represent the same thing: work!