simple machines

SIMPLE MACHINES

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Gonzalo Peláez Angulo

Simple Machines

ramp

wedge

lever

wheel and axle

pulley

screw

LEVER

PARTS OF A LEVER

Is a beam that is free to rotate on a fulcrum. Is perfect for lifting or moving heavy things. Have diferent classes: - First class - Second class - Third class

Wheel and axle

PARTS OF A WHEEL AND AXLE

Is a simple machine with two circular objects: a larg disc and a small cylinder. Examples: screwdriver, door knob

wedge

PARTS OF A WEDGE

Is a triangular tool that is made of metal, wood, stone or plastic. A wedge is thick on one end and thin or sharp at the other end. Can be attached to a handle to make it easier to use. Works by changing direction and force applied to it.

PULLEY

PARTS OF A PULLEY

Is a wheel with a grove, and a rope in the rope in the grove. Is used to lift up or lower heavy objects. Pulley change the direction of the force The downwards force turns the wheel with the rope and pulls the load upwards at the other end

RAMP

PARTS OF A RAMP

Is a simple machine with no moving parts. Is used to move object to higher or lower surfaces. Parts of a ramp - Horizontal side - Vertical side - Sloped surface

SCREW

Is a cylinder with a head at one end and a pointed tip at the other end. Screws are very usefful to hold things together. Parts of a screw - Shaft - Thread - Pitch

PARTS OF A SCREW