A lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or
fulcrum. A lever is a rigid body capable of rotating on a point on itself. On the ...
A hands-on experiment with levers lead by science expert Steve Tomecek.
www.ask.com/youtube?q=What Is a Lever?&v=E8RA9Kw_IaE
Mar 29, 2012 ... http://mocomi.com/ presents: What is a lever? The lever is one of the most basic
forms of a machine. They help us lift loads with lesser effort.
Find out about the lever, one of the most basic forms of a machine, which helps
lift heavy objects with much less effort, through this fun and animated learning ...
Lever definition, Mechanics. a rigid bar that pivots about one point and that is
used to move an object at a second point by a force applied at a third. See more.
Apr 21, 2016 ... April 2016 - A lever is basically just a long stick that you push or pull against a
fulcrum - a fixed object - to move something. A lever helps you ...
Jul 26, 2016 ... A lever is a simple machine that allows you to gain a mechanical advantage in
moving an object or in applying a force to an object.
Jul 26, 2016 ... There are three types or classes of levers, according to where the load and effort
are located with respect to the fulcrum. Since humans usually ...
old wooden pulley. Pulleys. 2. Lever - Enchanted Learning animations. A lever is
a stiff bar that rests on a support called a fulcrum which lifts or moves loads.
diagram of the three types of levers, showing fulcrum, direction of effort, and
direction of force of the load (or resistance). top: a crowbar. center: a