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Simple machines

Simple machines include levers, pulleys, inclined planes, wheels and axles, wedges, and screws. A lever uses a bar and fulcrum to lift heavy objects with less effort. A pulley uses a wheel and grooved rim to change the direction of a pull that lifts a load. An inclined plane is a ramp that eases loads up a level. A wheel and axle moves when the axle is pushed. A wedge cuts or divides things. A screw is an inclined plane that wraps around itself. Complicated machines combine two or more simple machines.

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Simple machinesBy: Dannielle Meheux
leverA lever is a simple machine that is a bar on a fixed point to lift heavy objects with ease.The fulcrum is located where The two pieces meet and the effortIs you the load is the sharp partThe fulcrum is where the door and the handle meet. When you apply effort to the handle it lifts the load on the inside which makes the door open.
pulleyA pulley is a wheel with a grooved rim that a pulled rope or chain can run to change the direction of the pull that lifts a load.This is an example cause the lace moves through the holes.This is an example cause when you pull the blinds it opens and closes
Incline planeAn inclined plane is a ramp in which it is raised at a level so that loads can be eased up.These stairs are an example cause it helps people change levels.An example is this wheel chair ramp
Wheel and axleAn axle which is fastened so that when the axle is pushed the wheels move with itIt moves the chair from one side of the room to the otherLets people move the toy car around
wedgeSomething that cuts or divides somethingWhen you push it into a bulletin boardWhen you stab food
screwA screw is an inclined plane that wraps around itselfWhen you open and close itScrewed to the door to hold it up
Complicated machinesIs when two or more simple machines are put togetherIt is a lever, wedge, and a wheel and axle. The lever is the handle. The wheel and axle is the knob and the wedge is the part that opens the can.THIS IS A WEDGE AND A LEVER. THE LEVER IS THE BLACK PART AND THE WEDGE IS WHEN THE STAPLES COME OUT.