Determination of Young's Modulus (AQA A-Level Physics): Flashcards

Control for sagging & thermal expansion

1 kg mass to make wires taut

1 kg at a time up to ~8 kg

Twice more (3 times total)

$A = \frac{\pi d^2}{4}$

$F = mg$ where $g \approx 9.81 \text{ m/s}^2$

Force (y-axis) vs Extension (x-axis)

$E = \frac{l \times G}{A}$

Safety goggles

Minimise errors & reduce % uncertainty in length