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 child slides down a slide. The weight of the child is 250 N. The height of the slide is 7.0 m. The work done against friction as the child travels down the slide is 1300 J. What is the change in gravitational potential energy and what is the final kinetic energy of the child? B A C D 2 / 5 2) A small emergency generator supplies 4.32 × 108 J of electrical energy in 24 hours. What is the average power output of the generator? 5000 W 432 000 000 W 18 00 000 W 300 000 W 3 / 5 3) A young child holds a ball over the edge of a balcony. The ball possesses gravitational potential energy. The ball is released, falls on to a concrete path below, and bounces back up. Which sequence represents, in the correct order, the transformations of the gravitational potential energy after the ball is released? ---> kinetic energy ---> gravitational potential energy ---> elastic potential energy ---> elastic potential energy ---> kinetic energy ---> elastic potential energy ---> elastic potential energy ---> kinetic energy ---> chemical potential energy ---> kinetic energy ---> elastic potential energy ---> kinetic energy 4 / 5 4) 2023 S3 EOY P1 Q26 A girl of weight 600 N runs up a flight of stairs in 12 s. The vertical height of the flight of stairs is 3.0 m. What is the average power developed by the girl? 1 800 W 21 600 W 0.0067 W 150 W 5 / 5 5) A car of mass m has an engine which can deliver power P. What is the minimum time in which the car can be accelerated from rest to a speed v? Your score is Restart quiz
