You are asked to find the Young modulus for a metal using a sample of wire. *(a) Describe the apparatus you would use, the measurements you would take and explain how you would use them to determine the Young modulus for the metal.

Apparatus: The wire is secured by a clamp and clamp stand A hanging mass is attached to the end of it, where the mass hung can be changed A Vernier scale or ruler may be attached to the apparatus to measure the distance the wire has extended Measurements: The initial length of the wire can be measured using a ruler (or metre rule) The wire diameter can be measured with a micrometer The mass attached can be measured using weighing scales (or by using known masses) The extension can be measured using a Vernier scale (or ruler) for a range of different masses Calculating Young’s Modulus: E= stress/strain                     So E is the gradient of a stress-strain graphStress=F/A=mg/πr2 Strain= extension/initial length            Readings for extension can therefore be taken for different masses.   The stress and strain can be calculated and plotted on a graph, and E can be measured from its gradient.

Answered by Robert H. Physics tutor

7142 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

How is a piezoelectric crystal used to generate waves of ultrasound?


An alpha particle is accelerated with 5MeV of kinetic energy towards the nucleus of a gold atom with atomic number 79. What is the distance of closest approach that is reached by the alpha particle?


A diver of mass 60kg stands on the end of a diving board of length 2m from the pivot point. Calculate the upward force exerted on the retaining spring 30cm from the pivot point.


The Σ0 baryon, composed of the quark combination uds, is produced through the strong interaction between a π+ meson and a neutron. π+ + n →Σ0 + X What is the quark composition of X?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences