- #1

Edward Trail

- 10

- 1

## Homework Statement

hi guys

I am conducting an experiment for my coursework in physics and i have come across a bit of a problem. i am trying to calculate the youngs modulus of 3 different metals Aluminium steel and brass. To calculate the modulus of the material i am using a chart of Mass k/g against the deflection thus giving me the gradient.

i am going wrong somwhere as i am getting a result of double the normal GPa for each item i.e 320Gpa instead of 140. see below data and charts that i have created.

## Homework Equations

S=L

^{3}/WT

^{3}which is 1796850000 for all metal strips

E=4Sg x gradient of graph

## The Attempt at a Solution

Here is a printscreen of my results, have i graphed them correctly?