Key concepts Physics Lever Force Tools Mass. Introduction Have you ever wondered how ancient people could lift very heavy objects, such as large stones, to build pyramids? A lever is a simple ...

In this free teacher resource for primary science, presenters Mwaksy and Greg design and make mechanisms that use levers to allow a smaller force to have a greater effect.

A PREMATURELY deployed slowing device could “well be” behind the Virgin Galactic spaceship crash, Virgin’s boss Richard Branson said Monday while hitting out at “hurtful” critics and ...

A lever is a long rod or stick that rests on a point called a fulcrum. When you apply force to one end, it reduces the effort needed to lift an object on the other end of the lever. In this experiment ...

Find out how simple machines makes work easier on this Science Trek. Simple machines include the lever, the inclined plane, the wedge, the pulley, the wheel and axle, and the screw. Combine these ...