Materials (AQA A-Level Physics): Flashcards

Mass per unit volume

Extension directly proportional to force applied

$F = k \Delta L$

Spring constant (material stiffness measure)

Point where Hooke's Law no longer applies

$\frac{F}{A}$

$\frac{\Delta L}{L}$

$\frac{1}{2} F \Delta L$

Stress level at which material fractures

Material returns to original shape when force removed