Practise

Question bank

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

TopicSkillDifficulty

12 questions

SA-9702-PR1-0011 markL1 FoundationCalculatorPractical uncertainty

Readings of a diameter are

0.52

0.55

and

0.53

mm. Calculate the absolute uncertainty in the mean, using half the range, in mm.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0021 markL1 FoundationCalculatorPractical uncertainty

20

oscillations take

31.4

s, with an uncertainty of

0.2

s. Calculate the percentage uncertainty in the period.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0031 markL1 FoundationCalculatorReadings

Which is the correct column heading for length measured in centimetres?

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0051 markL1 FoundationCalculatorReadings

A micrometer screw gauge reads to

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0061 markL1 FoundationCalculatorReadings

Timing many oscillations rather than one

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0091 markL1 FoundationCalculatorPractical uncertainty

A length is

45.0\pm0.1

cm. Calculate its percentage uncertainty.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0101 markL1 FoundationCalculatorReadings

A calculated value of

T^2

from

T=1.57

s should be recorded as

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0121 markL1 FoundationCalculatorReadings

Repeating readings and averaging mainly reduces the effect of

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0042 marksL2 StandardCalculatorPractical uncertainty

A wire's diameter is

0.50\pm0.01

mm. Calculate the percentage uncertainty in its cross-sectional area.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0072 marksL2 StandardCalculatorPractical uncertainty

V=6.0\pm0.1

V and

I=0.40\pm0.02

A. Calculate the percentage uncertainty in

R=\dfrac VI

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0081 markL2 StandardCalculatorReadings

Raw readings from a stopwatch are

1.45

1.5

s and

1.48

s. What is wrong with the recording?

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR1-0113 marksL3 ExamCalculatorPractical uncertainty

In finding

g=\dfrac{4\pi^2l}{T^2}

l=0.600\pm0.002

m and

T=1.55\pm0.01

s. Calculate the percentage uncertainty in

g

Salam Academy Original Practice · Proposed mark scheme