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Waves in matter practice questions

Practise mixed syllabus-aligned questions for Waves in matter. Aligned to OCR Gcse Combined Science A Gateway.

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Question 60 of 167

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A roller coaster car with a total mass of 300 kg is at the top of a hill, 25 metres above the ground. It then descends to a point 5 metres above the ground. (a) Calculate the gravitational potential energy of the roller coaster car at the top of the hill. (b) Calculate the gravitational potential energy of the roller coaster car when it is 5 metres above the ground. (c) Assuming no energy losses due to friction or air resistance, calculate the kinetic energy of the roller coaster car at the point 5 metres above the ground. Use g = 9.8 N/kg. [6 marks]

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Waves in matter questions | OCR GCSE Combined Science A Gateway | ExamCompanion