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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2730 questions · page 23 of 137 · choose a topic above to narrow them down

SA-9702-PL1-0011 markL1 FoundationCalculatorDefining the problem

In an investigation of how the period of a pendulum depends on its length, the dependent variable is

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SA-9702-PL1-0051 markL1 FoundationCalculatorMethod and safety

Which safety precaution is most appropriate when loading a wire with large masses to measure its extension?

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SA-9702-PL2-0021 markL1 FoundationCalculatorGradient uncertainty

A best-fit line has gradient

4.03

and the worst acceptable line has gradient

4.21

. Calculate the absolute uncertainty in the gradient.

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SA-9702-PL2-0041 markL1 FoundationCalculatorError bars

A worst acceptable line must

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SA-9702-PP1-0011 markL1 FoundationCalculatorDecay equations

Radium-226 (

Z=88

) decays by α emission. State the nucleon number of the daughter nucleus.

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SA-9702-PP1-0021 markL1 FoundationCalculatorDecay equations

For the same decay (

^{226}_{\;\,88}\text{Ra}

by α emission), state the proton number of the daughter nucleus.

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SA-9702-PP1-0041 markL1 FoundationCalculatorNuclear atom

In the α-scattering experiment, the fact that most α-particles passed straight through the foil shows that

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SA-9702-PP1-0051 markL1 FoundationCalculatorNuclear atom

State the number of neutrons in a nucleus of

^{235}_{\;\,92}\text{U}

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SA-9702-PP2-0011 markL1 FoundationCalculatorQuarks and hadrons

Calculate the charge, in units of

e

, of a baryon with composition uud.

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SA-9702-PP2-0021 markL1 FoundationCalculatorQuarks and hadrons

Calculate the charge, in units of

e

, of the

\Delta^-

baryon, composition ddd.

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SA-9702-PP2-0041 markL1 FoundationCalculatorQuarks and hadrons

The quark composition of a neutron is

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SA-9702-PP2-0051 markL1 FoundationCalculatorQuarks and hadrons

A meson consists of

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SA-9702-PQ1-0011 markL1 FoundationCalculatorSI units

The newton expressed in SI base units is

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SA-9702-PQ1-0021 markL1 FoundationCalculatorSI units

Which is not an SI base unit?

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SA-9702-PQ1-0031 markL1 FoundationCalculatorPrefixes & estimates

Convert a current of

250

μA into amperes.

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SA-9702-PQ1-0041 markL1 FoundationCalculatorPrefixes & estimates

Convert

72

km h⁻¹ into m s⁻¹.

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SA-9702-PQ2-0011 markL1 FoundationCalculatorUncertainties

A length is measured as

(25.0\pm0.1)

cm. Calculate the percentage uncertainty.

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SA-9702-PQ2-0021 markL1 FoundationCalculatorUncertainties

Two lengths,

(12.0\pm0.2)

cm and

(8.0\pm0.1)

cm, are added. Calculate the absolute uncertainty in the total.

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SA-9702-PQ2-0051 markL1 FoundationCalculatorErrors

Which is an example of a systematic error?

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SA-9702-PQ3-0011 markL1 FoundationCalculatorResolving

20

N force acts at

30^\circ

above the horizontal. Calculate its horizontal component.

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