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-WE2-0012 marksL1 FoundationCalculatorKE & GPE

Calculate the kinetic energy of a

1200

kg car moving at

15

m s⁻¹, in kJ.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-WE2-0021 markL1 FoundationCalculatorKE & GPE

Calculate the gain in GPE when a

2.0

kg mass is raised by

5.0

m. (

g=9.81

m s⁻²)

Salam Academy Original Practice · Proposed mark scheme

SA-9702-WE2-0041 markL1 FoundationCalculatorKE & GPE

The speed of an object is doubled. State the factor by which its kinetic energy increases.

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SA-9702-WE2-0121 markL1 FoundationCalculatorEnergy problems

A ball falls freely with no air resistance. Which quantity stays constant?

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SA-9702-WE2-0032 marksL2 StandardCalculatorKE & GPE

An object falls from rest through

3.2

m with negligible air resistance. Calculate its speed.

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SA-9702-WE2-0051 markL2 StandardCalculatorKE & GPE

The formula

\Delta E_p=mg\Delta h

is derived by considering

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SA-9702-WE2-0062 marksL2 StandardCalculatorEnergy problems

A pendulum bob is released from rest at a height of

0.20

m above its lowest point. Ignoring air resistance, calculate its speed at the lowest point.

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SA-9702-WE2-0073 marksL2 StandardCalculatorEnergy problems

2.0

kg block slides from rest down a rough slope, descending

5.0

m vertically. It reaches the bottom at

8.0

m s⁻¹. Calculate the energy dissipated by friction.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-WE2-0082 marksL2 StandardCalculatorKE & GPE

An object of mass

3.0

kg has momentum

12

kg m s⁻¹. Calculate its kinetic energy.

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SA-9702-WE2-0092 marksL2 StandardCalculatorEnergy problems

0.50

kg ball is thrown vertically upwards with

50

J of kinetic energy. Ignoring air resistance, calculate the maximum height it rises.

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SA-9702-WE2-0101 markL2 StandardCalculatorKE & GPE

In deriving

E_k=\tfrac12mv^2

, which equation of motion is combined with

W=Fs

and

F=ma

Salam Academy Original Practice · Proposed mark scheme

SA-9702-WE2-0114 marksL3 ExamCalculatorEnergy problems

500

kg roller-coaster car passes over the top of a hill at

2.0

m s⁻¹. It then descends

30

m vertically along

60

m of track, against an average resistive force of

2000

N. Calculate its speed at the bottom. (

g=9.81

m s⁻²)

Salam Academy Original Practice · Proposed mark scheme