Hooke's Law (AQA GCSE Physics): Flashcards

Extension $\propto$ force if limit of proportionality not exceeded

Point where linear relationship of Hooke's Law ends

Max stretch point where material returns to original shape

Material becomes permanently deformed

$F = kx$

Force applied to spring (N)

Spring constant (N/m)

Extension (m)

Elastic region, follows Hooke's Law

$k$ (spring constant)

Plastic behaviour, doesn't follow Hooke's Law

Easy to stretch, lots of extension for little force

Material with only linear graph; snaps instead of stretching after elastic limit

Within limit of proportionality