P3 - Work and Power 0.0 / 5 ? ScienceWork and PowerGCSEOCR Created by: kaliSereneCreated on: 21-05-16 16:21 When is work done? When a force moves an object in the direction in which the force acts 1 of 10 What is the formula for work done? work done = force x distance moved (in the direction of the force) 2 of 10 What is the weight the measurement of? The gravitational attraction on a body acting towards the centre of the Earth 3 of 10 What is the formula for weight? weight = mass x gravitational field strength 4 of 10 What is power? the rate at which work is done 5 of 10 What is the formula for power? power = work done / time taken 6 of 10 What are the rearrangements of this equation? work done = power x time taken, time taken = work done / power 7 of 10 Most powerful cars have ____ fuel consumption? greater 8 of 10 How does fuel pollute the environment? car exhaust gases, especially carbon dioxide, are harmful. Carbon dioxide is a major source of greenhouse gases, which contribute to climate change 9 of 10 How is power related to force and speed? power = workdone/timetaken = forceXdistance/timetaken = forceXdistance/time = forceXspeed 10 of 10
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