A-LevelPhysicsDeformation of solids9702/12 · May/June 2015 · Q211 Mark

To determine the Young modulus of a wire, several measurements are taken. In which row can the measurement not be taken directly with the stated apparatus?

Ameasurement: area of cross-section of wire, apparatus: micrometer screw gauge

Bmeasurement: extension of wire, apparatus: vernier scale

Cmeasurement: mass of load applied to wire, apparatus: electronic balance

Dmeasurement: original length of wire, apparatus: metre rule

✓ Correct answer

A: measurement: area of cross-section of wire, apparatus: micrometer screw gauge

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Topic: Deformation of solids, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2015 Paper 1 Variant 2, question 21.

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