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When we lift up a weight, stretch a piece of elastic or push a box across the floor we are doing WORK and changing energy from one form to another. In each case we are pushing or pulling against a force.

Work done (W) = Force applied (F) x distance moved (d)

The units for work are JOULES with the force in NEWTONS and the distance in METRES. 1 JOULE of work is done when a force of 1 NEWTON is moved a distance of 1 METRE.

If 48J of work are done then 48J of energy are changed from one form of energy to others.

© Keith Gibbs 2009