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-DS1-0011 markL1 FoundationCalculatorStress & strain

A force of

200

N acts on a wire of cross-sectional area

2.5\times10^{-6}

m². Calculate the stress, in MPa.

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SA-9702-DS1-0021 markL1 FoundationCalculatorStress & strain

A wire of original length

1.5

m extends by

0.60

mm. Calculate the strain, in units of

10^{-4}

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SA-9702-DS1-0051 markL1 FoundationCalculatorYoung modulus

The Young modulus of a material is equal to

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SA-9702-DS1-0071 markL1 FoundationCalculatorStress & strain

The unit of strain is

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SA-9702-DS1-0091 markL1 FoundationCalculatorStress & strain

A force of

12

N stretches a spring by

0.040

m. Calculate its spring constant.

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SA-9702-DS1-0121 markL1 FoundationCalculatorStress & strain

Tensile stress is defined as

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SA-9702-DS1-0032 marksL2 StandardCalculatorYoung modulus

Using a stress of

8.0\times10^7

Pa and a strain of

4.0\times10^{-4}

, calculate the Young modulus, in GPa.

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SA-9702-DS1-0042 marksL2 StandardCalculatorYoung modulus

A wire has a diameter of

0.50

mm. Calculate its cross-sectional area, in units of

10^{-7}

m².

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SA-9702-DS1-0062 marksL2 StandardCalculatorYoung modulus

A steel wire (

E=2.0\times10^{11}

Pa) is

2.0

m long with cross-sectional area

1.0\times10^{-6}

m². Calculate its extension, in mm, under a load of

100

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SA-9702-DS1-0082 marksL2 StandardCalculatorYoung modulus

A wire of cross-sectional area

1.0\times10^{-6}

m² and Young modulus

2.0\times10^{11}

Pa is stretched to a strain of

1.0\times10^{-3}

. Calculate the tension in it.

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SA-9702-DS1-0101 markL2 StandardCalculatorYoung modulus

In an experiment to measure the Young modulus of a metal, a long, thin wire is used because

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SA-9702-DS1-0113 marksL3 ExamCalculatorYoung modulus

Wires A and B are made of the same metal. B is twice as long as A and has twice the diameter. The same load is hung from each. Determine the ratio

\dfrac{\text{extension of B}}{\text{extension of A}}

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