How can I find out the Young's modulus of a material?

Right, so the Young's modulus of a material is a measure of it's rigidity. The higher the value of the Young's modulus, the more rigid the material is.Ok, so the Young's modulus, E, is equal to the stress that the material experiences divided by the strain experienced by the material.The stress, σ, of a material is equal to the force, F, applied to this material, divided by the area, A, upon which this force is applied. The equation for this is:σ = F/AOn the other hand, the strain, ε, of the material is equal to the extension of the material, e (how much the material has extended by having this force applied to it), divided by the original length, l, of the material. The equation for strain isε = e/lThe Young's modulus is equal to the stress divided by the strain, so:E= σ/ε = (F/A)/(e/l) = (FL)/(Ae)So, E = (Fl)/(Ae)For example, If a metal wire of original length 2cm

WS
Answered by William S. Physics tutor

6453 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Derive an expression for the centripetal acceleration of a body in uniform circular motion.


A nail of mass 7.0g is held horizontally and is hit by a hammer of mass 0.25kg moving at 10ms^-1. The hammer remains in contact with the nail during and after the blow. (a) What is the velocity of the hammer and nail after contact?


How can you tell if a reaction will happen?


What does the photoelectric effect demonstrate?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning