OCR GCSE Physics A · J249

Calculations for moving and stretched objects

What you need to know

Calculate the energy associated with a moving body (kinetic energy).
Calculate the energy associated with a stretched spring (elastic potential energy).
Calculate the energy associated with an object raised above ground level (gravitational potential energy).

$E_k = \frac{1}{2}mv^2$

=

21mv2

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

$E_p = mgh$