Simple Machines and Levers

Machine Lab It is not Elf Magic. Introduction and theory "One machine can accomplish the work of 50 ordinary people, a machine that can not do special people's work" - Elbert Hubbard 1. Machines are often used to ease human life. A simple machine is described as a device used when attaching a front face to an object. Simple machines include levers, pulleys, wheels and shafts, gears, bevels, wedges and screws. Complex machines are simple mechanical systems used together to end work.

The students' day-to-day experience hardly recognizes that levers, bevels, wedges, pulleys are a kind of "simple machine". Most students have experience using simple machines such as levers and pulleys, but few people can not understand why their designs bring benefits, or how to use them. Many students are also difficult to recognize or interpret these experiences by others, and rarely identify parts of the body composed of levers such as arms and legs.

As we initially thought, the machine does not always have to be a complicated and complex technical device - a simple lever is a machine. Human skeleton is also machine. The four most basic and simple machines are levers, pulleys, wheels, axles, and inclined planes and bevels. Simple basic machine combinations are used more than once to use more complicated machines such as watches and different wheels and to rotate each other. WORK DONE = force x distance. With this formula in mind, in order to perform the same amount of work, you see that as the force decreases, you need to cover a longer distance, which increases the time spent by it.

Simple machines are very important for everyday life. What they make is difficult to make cakes. There are several kinds of simple machines. The first simple machine is a lever. The lever consists of fulcrum, load, and force. The fulcrum is a fulcrum. Depending on the fulcrum placement, the force and distance required to move the object will change. The load is the applied force. Power is the force on the other side of the load. Leverage is divided into three categories. The first type of lever is like a pliers and the pivot point is in the center of the lever. The second type of lever is an object with a fulcrum on the opposite side of the applied force like the Nutcracker. The last third category is an object such as a crab's nail. These objects are loaded at one end and at the other end a fulcrum