Athlete X has a mass of 65 kg and climbs a vertical rope distance of 10 m in 12 s.
Athlete Y has a mass of 75 kg and climbs a vertical rope distance of 10 m in 10 s.
Who has the most power and why?
Athlete X because they have a smaller mass.
Athlete X because they transfer more energy in a longer time.
Athlete Y because a greater mass always means a greater power.
Athlete Y because they transfer more energy in a shorter time.
37 exam-style questions on OCR GCSE Physics Power and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.