Hooke's Law (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards

Extension of elastic object is proportional to force (within limit of proportionality)

Point where force/extension relationship stops being linear

Max stretch point where material can still return to original shape

Material becomes permanently deformed

$F = kx$

Force applied to spring in Newtons ($N$)

Spring constant in Newtons per metre ($Nm^{-1}$)

Extension in metres ($m$)

Elastic region; follows Hooke's Law

Spring constant ($k$)

Plastic behaviour; does not follow Hooke's Law

Only linear line; snaps instead of stretching

Easy to stretch; lots of extension for little force