Do you know what work is?
Work Done and Power Quiz
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#1. Complete the equation for power. Power (W) = work done (J) / ........
#2. A crane raises a concrete bucket 12m into the air. The bucket including the cement weighs 850N. Calculate the work done. Answer to 1d.p and include the units. ? Do not include your workings in your answer
#3. What does E represent in the equation for work done?
#4. An electric motor does 70,000 J of work in 200 s. Calculate the Power of this action. Include the units and answer to 1d.p ? Do not include your workings in your answer
#5. Kate and Emma both walk up 10 stairs, moving 4.5m higher than before. Emma does this in 2.7 seconds, Kate does this in 3.2 seconds. Which girl has exerted the most power?
#6. What do we call the energy transferred by a force?
#7. Which of the following is the correct equation for work done?
#8. Complete the sentence. Power is the rate at which.....
#9. The equation for work done is E = F x d. Calculate the distance moved when a 650 J of work is done to move a 160 N object. Leave your answer to 1 d.p and include the units. ? Do not include your workings in your answer
#10. Jack moves a cube weighing 250N. He moves the cube by 2.5m in a straight line. Calculate the work done by Jack. Answers to 1d.p, include the units. ? Do not include your workings in your answer
#11. Which of the following best describes energy?
#12. What does F represent in the equation for work done?
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