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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-9702-PR1-0011 markL1 FoundationCalculatorPractical uncertainty
Readings of a diameter are 0.520.52, 0.550.55 and 0.530.53 mm. Calculate the absolute uncertainty in the mean, using half the range, in mm.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0021 markL1 FoundationCalculatorPractical uncertainty
2020 oscillations take 31.431.4 s, with an uncertainty of 0.20.2 s. Calculate the percentage uncertainty in the period.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0031 markL1 FoundationCalculatorReadings
Which is the correct column heading for length measured in centimetres?
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0051 markL1 FoundationCalculatorReadings
A micrometer screw gauge reads to
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0061 markL1 FoundationCalculatorReadings
Timing many oscillations rather than one
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0091 markL1 FoundationCalculatorPractical uncertainty
A length is 45.0±0.145.0\pm0.1 cm. Calculate its percentage uncertainty.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0101 markL1 FoundationCalculatorReadings
A calculated value of T2T^2 from T=1.57T=1.57 s should be recorded as
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0121 markL1 FoundationCalculatorReadings
Repeating readings and averaging mainly reduces the effect of
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0042 marksL2 StandardCalculatorPractical uncertainty
A wire's diameter is 0.50±0.010.50\pm0.01 mm. Calculate the percentage uncertainty in its cross-sectional area.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0072 marksL2 StandardCalculatorPractical uncertainty
V=6.0±0.1V=6.0\pm0.1 V and I=0.40±0.02I=0.40\pm0.02 A. Calculate the percentage uncertainty in R=VIR=\dfrac VI.

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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0081 markL2 StandardCalculatorReadings
Raw readings from a stopwatch are 1.451.45 s, 1.51.5 s and 1.481.48 s. What is wrong with the recording?
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Salam Academy Original Practice · Proposed mark scheme
SA-9702-PR1-0113 marksL3 ExamCalculatorPractical uncertainty
In finding g=4π2lT2g=\dfrac{4\pi^2l}{T^2}, l=0.600±0.002l=0.600\pm0.002 m and T=1.55±0.01T=1.55\pm0.01 s. Calculate the percentage uncertainty in gg.

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Salam Academy Original Practice · Proposed mark scheme