Simple Machines Example

Simple machines are the devices used to transform or compensate a force, resistance or lift a weight in more favorable conditions. Simple machines are simple inventions that transform a movement by applying an external force, with them it is fulfilled the law of transformation of matter, since the energy applied to make it work is only transformed into a action.

There are three basic concepts that we must analyze when dealing with simple machines, mechanics (it talks about force and movement), kinetics (movements of static bodies) and dynamics (forces applied to objects and the effects they produce), is a key piece in understanding how simple machines work, and how we can get the most out of it. they.

Most of the examples of simple machines that we can find are devices that we have known since ancient times but that They have evolved, perfected and are even the basis on which new and more complex devices are based.

These gadgets make our life easier, they are tools that are present almost anywhere we let's turn, the lever, a pulley, and inventions like the one that in his time revolutionized all human society, the wheel, all of them are examples of simple machines, although most of the time we do not realize the great contribution they make to our lives.

It is noted that the purpose of these devices was to make people's lives much easier, since their use does not require great knowledge and skills, allowing its use to be learned by anyone, which contributed to the advancement of the civilization.

But how do they work? The lever consists of a rigid bar, it is usually made of a very hard material capable of supporting a lot of weight, which rotates around a fixed point, (usually a cylinder), this The machine is used to transport weight more easily, since the object that needs to be moved is placed on top of the bar and thanks to the cylinder we can make it move.

The next simple machine that we will talk about is the pulley, which consists of a rope or loop that rotates around a wheel, the pulley serves to lift weight to a certain height, and The element to be “loaded” is tied to one end of the rope, and the other side is where the force is applied to lift it, it can be used in 2 ways: fixed pulley and pulley mobile.

And finally we can talk about the wheel, this is the most used in daily life, however, it is impossible to determine who invented it or in what year, since "wheels" have been found dating from prehistory, therefore we are talking about one of the first simple machines that the humanity.

Examples of simple machines:

Among the simple machines that exist we can count some such as the wheel, the pulley or the lever among others, which have contributed to the development of machines or more elaborate tools, "evolving" from the first, for example the lathe evolved from the first wheels, and in the same way axles were created for the wheels that were They later added to vehicles, (wheelbarrows, carts, carts), and in the same way a simple machine such as the lever that allowed to lift large weights, allowed them to go making levers for various uses, such as those that we can observe in scales, that is, each simple tool or machine, gave room to new inventions, more specialized and complex.

The tweezers.- It is perhaps one of the simple machines that the human being first used, perhaps the first consisted of a couple of pieces of wood joined in some way, with which they were held Some things, later man learned to make them of metal, joining two pieces by means of a shaft, being useful to "grab" things such as incandescent metals in the forgings.

Levers.- It is perhaps one of the simplest machines, with them you can lift weights greater than what the human being lifts with his own strength.

Manual drill.- First made of wood and then metal, it is one of the tools that have been known since prehistoric times, being used to drill wood or bones.

Pendulum.- It is a simple machine that, thanks to its pendulum movements, allows measurements such as time to be made, measuring the oscillations it performs in each period between oscillation and oscillation.

Bow and arrows).- It is a very simple machine, consisting of a bow (generally made of flexible wood), and a tensioner (rope, tendon or animal hide, etc.), which allows to give impulse to an arrow, which is fired when the bow is twisted with the string when performing the corresponding movement by the bearer of the bow.