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-DS2-0011 markL1 FoundationCalculatorStrain energy

A force of

40

N stretches a wire by

0.050

m, within its limit of proportionality. Calculate the elastic potential energy stored.

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SA-9702-DS2-0021 markL1 FoundationCalculatorStrain energy

A spring with

k=200

N m⁻¹ is stretched by

0.10

m. Calculate the energy stored.

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SA-9702-DS2-0031 markL1 FoundationCalculatorStrain energy

The work done in stretching a wire is represented by

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SA-9702-DS2-0041 markL1 FoundationCalculatorMaterial behaviour

The elastic limit is the point beyond which

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SA-9702-DS2-0051 markL1 FoundationCalculatorMaterial behaviour

Plastic deformation is

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SA-9702-DS2-0061 markL1 FoundationCalculatorMaterial behaviour

Which material is brittle?

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SA-9702-DS2-0071 markL1 FoundationCalculatorMaterial behaviour

A ductile material is one that

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SA-9702-DS2-0082 marksL2 StandardCalculatorStrain energy

A spring with

k=500

N m⁻¹ is stretched from an extension of

0.020

m to

0.060

m. Calculate the extra energy stored.

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SA-9702-DS2-0091 markL2 StandardCalculatorMaterial behaviour

A rubber band's unloading curve lies below its loading curve. The area between the curves represents

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SA-9702-DS2-0102 marksL2 StandardCalculatorStrain energy

A wire is under a stress of

2.0\times10^8

Pa at a strain of

1.0\times10^{-3}

, within the limit of proportionality. Calculate the energy stored per unit volume, in units of

10^5

J m⁻³.

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SA-9702-DS2-0121 markL2 StandardCalculatorMaterial behaviour

Which statement is correct for a metal wire being stretched?

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SA-9702-DS2-0113 marksL3 ExamCalculatorStrain energy

A catapult elastic has

k=800

N m⁻¹ and is stretched by

0.15

m. It fires a

0.050

kg stone. Assuming all the elastic energy becomes kinetic energy of the stone, calculate the stone's launch speed.

Salam Academy Original Practice · Proposed mark scheme