Revision: Work, Energy & Power Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 08 Work, Energy & Power - Revision Quiz Test your understanding of Work, Energy & Power here: 1 / 5 1) A small emergency generator supplies 4.32 × 108 J of electrical energy in 24 hours. What is the average power output of the generator? 18 00 000 W 300 000 W 5000 W 432 000 000 W 2 / 5 2) A box of mass 2 kg is being pushed horizontally along a smooth surface by a 10 N force for 6 m. What is the work done on the box by the 10 N force? 0 J 48 J 12 J 60 J 3 / 5 3) A girl of weight 500 N runs up a flight of stairs in 10 seconds. The vertical height of the stairs is 5 metres. What is the average power developed by the girl? 250 W 50 W 1000 W 100 W 4 / 5 4) 2023 S3 EOY P1 Q27 27 A ball of mass 3.0 kg is dropped from rest from a height of 6.0 m above the floor. Assume that air resistance is negligible. What is the speed of the ball at 2.0 m above the floor as it is falling down? 8.9 m s–1 80 m s–1 120 m s–1 11 m s–1 5 / 5 5) 2017 S4 EOY P1 Q09 A machine lifted a 500 N weight to a height of 3.0 m in 2.0 s. What is the amount of energy required to lift the same weight to a height of 3.0 m in 1.0 s? 1500 J 500 J 3000 J 750 J Your score is Restart quiz
