WPH0 QR Dynamic Papers Physics al Edexcel

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Edexcel | Physics WPH0 | S 16 4 1 | 1 hour 30 minutes

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13

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In the game of air hockey, small identical discs move across a frictionless surface.

13

(a)

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3 Mark s

Calculate the velocity v.

v =

13

(b)

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2 Mark s

Explain whether the collision is elastic or inelastic.

Ek before = 24 m (J)

Ek after = 24 m (J) therefore elastic

(ecf from (a) and conclusion consistent with their values for kinetic energy)

[ a statement that because the masses are identical and move apart at 90°

means the collision is elastic scores 2 marks]

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All the included past papers are copyrighted © University of Cambridge Local Examinations Syndicate (UCLES), which we have collected from various online sources and gathered together in one website.