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 24 of 137 · choose a topic above to narrow them down

SA-9702-PQ3-0021 markL1 FoundationCalculatorResolving

Calculate the vertical component of the same

20

N force at

30^\circ

above the horizontal.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PQ3-0031 markL1 FoundationCalculatorAdding vectors

Forces of

6.0

N and

8.0

N act at right angles. Calculate the magnitude of the resultant.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PQ3-0041 markL1 FoundationCalculatorAdding vectors

For the same forces (

6.0

N and

8.0

N at right angles), calculate the angle between the resultant and the

8.0

N force.

Salam Academy Original Practice · Proposed mark scheme

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?

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SA-9702-PR1-0051 markL1 FoundationCalculatorReadings

A micrometer screw gauge reads to

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SA-9702-PR2-0011 markL1 FoundationCalculatorGraph work

A best-fit line passes through

(0.20, 0.82)

and

(0.80, 3.24)

. Calculate its gradient.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR2-0031 markL1 FoundationCalculatorGraph work

A line of gradient

2.5

passes through

(4.0, 13.0)

. Calculate its

y

-intercept.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-PR2-0041 markL1 FoundationCalculatorGraph work

When calculating a gradient, the triangle used should

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SA-9702-PR2-0051 markL1 FoundationCalculatorEvaluation

Which is the best improvement for "it was difficult to judge when the pendulum completed an oscillation"?

Salam Academy Original Practice · Proposed mark scheme

SA-9702-QP1-0012 marksL1 FoundationCalculatorPhotons

Calculate the energy of a photon of wavelength

500

nm, in units of

10^{-19}

J. (

h=6.63\times10^{-34}

J s;

c=3.00\times10^8

m s⁻¹)

Salam Academy Original Practice · Proposed mark scheme

SA-9702-QP1-0021 markL1 FoundationCalculatorPhotons

Convert

3.98\times10^{-19}

J to electronvolts.

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SA-9702-QP1-0041 markL1 FoundationCalculatorPhotoelectric effect

The work function of a metal is

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SA-9702-QP2-0012 marksL1 FoundationCalculatorde Broglie wavelength

Calculate the de Broglie wavelength of an electron moving at

2.0\times10^6

m s⁻¹, in nm. (

h=6.63\times10^{-34}

J s;

m_e=9.11\times10^{-31}

kg)

Salam Academy Original Practice · Proposed mark scheme

SA-9702-QP2-0031 markL1 FoundationCalculatorDuality evidence

Evidence for the wave nature of electrons comes from

Salam Academy Original Practice · Proposed mark scheme

SA-9702-QP2-0041 markL1 FoundationCalculatorDuality evidence

Evidence for the particle nature of electromagnetic radiation comes from

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SA-9702-QP3-0021 markL1 FoundationCalculatorEnergy levels

Calculate the energy of the photon emitted when an electron falls from

-0.85

eV to

-3.40

eV, in eV.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-QP3-0031 markL1 FoundationCalculatorEnergy levels

Calculate the number of different spectral lines possible from transitions between

5

energy levels.

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SA-9702-QP3-0041 markL1 FoundationCalculatorLine spectra

An emission line spectrum consists of

Salam Academy Original Practice · Proposed mark scheme