kinetic energy

do stationary objects have kinetic energy and why

no because kinetic energy is the energy stored in moving objects

how can the kinetic energy of object be calculate

0.5x mass (kg) x speed2 (m/s)

extension

the amount the spring changes after force is applied

what will you get if you plot extension(m) against the force applied (n)

a straight line passing through zero

what happens if too much force is applied

extension will no longer be directly proportional to force

limit of proportionality

when spring stops obeying Hooke’s Law

what is the equation to calculate elastic potential energy assuming the limit of proportionality has not been exceeded

0.5x k (N/m) x e2 (m)

what is gravitational potential energy

energy stored in an object due to position above earth’s surface. This is due to the force of gravity acting on an object

how to calculate gravitational potential energy

m(kg) x g(N/kg) x h (m)