Class practical: A series of simple experiments to develop the idea of doing useful work.
Work is done whenever a force moves something over a distance. You can calculate the energy transferred, or work done, by...
In this episode, students have to learn to think of force as a mechanism by which energy is transferred from one body to...
Many levers work as force-multipliers. In this case a small force (or effort) acting on the lever moves a large distance to...
A force is said to do work when there is a displacement of the point of application of the force in the direction of the force...
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