Levers have 3 different classes.
Lever pictures of simple machines.
Lever pulley wheel and axle inclined plane sc.
1st class 2nd class and 3rd class.
The other machines are the wheel the inclined plane the screw the wedge and the pulley.
Simple machines sort cut and paste examples and definitionswant a quick way to assess their learning or do some review this is it 2 versions of this worksheet for students to cut and paste examples and definitions of the 6 different simple machines.
A lever is a simple machine that consists of a rigid object often a bar of some kind and a fulcrum or pivot.
The lever one of the six classical simple machines.
The simple machines are the inclined plane the lever the wedge the wheel and the axle the pulley and the screw.
Levers were originally made from ropes and two wooden poles.
Applying a force to one end of the rigid object causes it to pivot about the fulcrum causing a magnification of the force at another point along the rigid object.
A lever could be something as simple as a wooden board with a ridge that freely rotates or moves on a pivot.
A see saw or teeter totter.
Two examples of modern day levers are tweezers 3rd class and a scale 1st class.
The most common and popular lever can be found in many playgrounds.
Levers have improved a lot from when they were invented millions of years ago.
They are found everywhere and it is one of the most useful simple machines.
Levers make work easier like any other simple machine.