Work, force and distance
work and energy are measure the same unit, joules (J)
work done (joule, J) = force (newton, N) × distance (metre, m)
Potential energy and kinetic energy:
gravitational potential energy- Any object that is raised against the force of gravity stores
elastic potential energy- They can be stretched or squashed, but energy is needed to change their shape. This energy is stored in the stretched or squashed object
kinetic energy- The more mass an object has, and the faster it is moving, the more kinetic energy it has.
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