2 page 3 Work and energy Work is the causing of motion against a resisting force. In other words, it is the amount of effort which has to be exerted in order to get an object to move. Work is calculated by the following formula. When work gets done energy is transferred from one system to another.
Energy is the capacity for doing work.
You must have energy to do work and the more energy you have, the more work you can do. Cars, snowmobiles and bulldozers get their energy from gasoline or other fuels. They can do lots of work as long as there is fuel available. Energy is also needed to make simple machines work. Aboriginal simple machines Many of the tools which have been traditionally been used by Aboriginal peoples are simple machines.