Elastic Strings & Springs (Edexcel A-Level Further Mathematics): Flashcards

Energy stored when string/spring stretched or compressed

$E_e = \frac{1}{2} \frac{\lambda x^2}{l}$

Modulus of elasticity (N)

Extension or compression (m)

Natural length (m)

Stretched length - natural length

Work done = $\Delta KE + \Delta PE + \Delta E_e$

Zero (no extension)

$T = \frac{\lambda x}{l}$

Joules (J)