Physics 5054 · O Level · Energy

Energy — practice question

A child descends a slide. The child’s weight is 250 N. The slide has a height of 7.0 m. As the child moves down the slide, 1300 J of work is done against friction. What is the change in gravitational potential energy and what is the child’s final kinetic energy?

  • A1750 and 450
  • B1750 and 1750
  • C17500 and 16200
  • D17500 and 17500

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI