GCSE Physics - Essential Calculations

Calculations 2

13 marks over 7 questions.

Calculators at the ready! In your answer write superscript as a usual number, e.g.: m/s² = m/s2

1. a) A car at a steady speed crosses 200 m in 40 seconds.
What is the speed of the car?

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b) How far will the car get in one minute?

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12 m
30 m
300 m

2. a) A ball is dropped from a tall building, reaching 45 m/s in 5.0 seconds.
What is the acceleration of the ball to 2.s.f. ?

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b) How fast will the same ball be falling after 7 seconds?

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c) What force, to 2.s.f., is needed to accelerate the ball to 9.8 m/s² if the ball's mass is 1.5 kg?

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d) The answer force in question c) acts on a 2.5 kg ball.
How fast does the ball accelerate?

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e) What is the weight, to 2.s.f., of the 2.5 kg ball if gravity is 9.8 N/kg?

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