Paper 4 Nov 2000 Physics

Answer guide for O Level Physics (5054/4) – Paper 4 Alternative to Practical November 2000

1(a) (b)

(c)

2(a) (b)(i) (ii)

(iii)

3(a)(i)

10.01 The sleeve has moved past 7 + ∫ mm One division is ( ∫ mm / 50 ) mm The reading is 0.44 mm so 7.5 + 0.44 = 7.94 mm Close the empty jaws or similar observe whether there is a zero reading as jaws touch

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Neat, thin and accurate lines (touching the points) Correct, accurate line and labelled Good normals by eye, 5 cm long and thin Correct angles within tolerance (± 1) angle i = …45 (unit required at least once) angle e = …53

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Accuracy (not ease) when setting the protractor on the two arms of the angles

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Degree Celsius (Centigrade) 1/100 part of distance between upper and lower fixed points When used 1/3 of length should be immersed Also allowed: Check fixed point / magnifying lens / thermometer held vertically One degree Celsius (Centigrade) Better than half a degree 54.5

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4(a)

Six headed columns or rows Appropriate units for each

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(b)

T = t/N Answer includes reference to moving fastest and smallest error 30 ± 1 1 (unit not essential)

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(ii)

(b)

(c) (d)(i) (ii)

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© UCLES 2002

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Answer guide for O Level Physics (5054/4) – Paper 4 Alternative to Practical November 2000

5(a)

(b) (c)

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Correct axes and sensible scales Accurate plotting, seven correct plots Only six correct plots (1) Pen / pencil work, neat points, thin line, neat and good judgement Two deductions to nearest ∫ small square Answer to 2, 3 or 4 s.f.

© UCLES 2002

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