Springs (VCE SSCE Physics): Flashcards

Material storing elastic PE, returns to original shape when released

Max stress/deformation without causing permanent deformation

Force is directly proportional to extension/compression

$F = kx$

N m$^{-1}$ (newtons per metre)

Stiffer spring; more force needed for same extension

$E_s = \frac{1}{2}kx^2$

At equilibrium position

$kx = mg$ (spring force balances weight)

Elastic PE max, kinetic energy zero