What is a simple machine?
In physics, the machine is a device that facilitates the work either by transferring force from one point to another, increasing the distance or the speed of force, increasing the size of the force or changing the direction of force.
Although technology is constantly changing, it is useful to realize that all machines are made of the same basic parts. The term simple machine is used to indicate devices that have few moving parts if they exist but use energy to work. If two or more simple machines are connected to create a single mechanism, the resulting device is known as a complex machine
six simple machines are screw, tilted plane, wedge, lever, pulley and wheels and axle. In this group you can divide simple machines into two smaller categories. The tilted plane, wedge and screw are dependent on vector resolution of forces, while lever, pulley and wheel work, because there is a balance of torque.
tilted plane is a sloping surfaceCH that connects a lower level with a higher level. The wedge is an object with a sloping side that ends at a shape point to help you separate the material. The screw is basically a tilted plane wrapped around the pole, allowing the materials to hold together.
The lever is a rod resting on a fulcrum that can lift or move by load. The butcher is a groove with a groove between two flanges around its perimeter and a cable, a belt or a rope running inside the groove. The wheel and axle are a modification of the pulley in which the wheel is attached to the shaft, for example on a pair of skates.
The idea of a simple machine was first discussed by the ancient Greek philosopher Archimedes. However, the complete theory of a simple machine as an object that transforms energy is in fact credited to Italian scientist Galileo Galilei in his 1600 publication le Meccaniche ( on the mechanics ).
While the traditional definitionThe simple machine contains six separate machines, it is interesting to note that not everyone agrees with this theory. For example, there are people who claim that both the pulley, the wheels and the axle can be considered unique types of levers. There are also people who believe that hydraulic systems are also a type of simple machine because they provide strengthening strength.