A child slides down a water slide.
As the child slides down, the decrease in their gravitational potential energy is 1.715 kJ. The mass of the child is 50 kg. The gravitational field strength is 9.8 N/kg. Calculate the change in vertical height of the child.
As the child moves down the slide, their increase in kinetic energy is less than their decrease in gravitational potential energy. Explain why.
Different children have different speeds at the bottom of the slide. Explain why.
Practise AQA GCSE Physics Energy changes in a system, and the ways energy is stored before and after such changes with exam-style questions for Foundation and Higher tier. 64 questions covering Energy stores and systems, Changes in energy, Energy changes in systems, and Power, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.