Work done and energy transferred are measured in joules
(J). The work done on an object can be calculated if the force and distance
moved are known.
- Objects raised against the force of gravity contain gravitational
- Elastic objects gain elastic potential energy when they are stretched
- Moving objects have kinetic energy. The more mass they contain and
the faster they move, the more kinetic energy they contain.
A change in momentum happens when a force is applied
to an object that is moving or is able to move. The total momentum in
a collision or explosion stays the same.
Conservation of momentum
Potential energy & kinetic energy
Kinetic energy formula
Test on Energy, momentum & work
[ This page has been adapted from www.bbc.co.uk/schools/gcsebitesize/science