Force and extension (AQA GCSE Physics Combined Science): Flashcards

Change in spring shape when force applied; can return to original shape

Force directly proportional to extension (up to a limit)

$F = ke$

Tells you how stiff a spring is

Stiffer spring (harder to stretch)

Total stretched length - original length

$E_p = \frac{1}{2}ke^2$

Elastic potential energy stored

Elastic behaviour (follows Hooke's law)

Spring constant ($k$)

Energy stored in the spring

Point where spring no longer behaves elastically