Simple Machines :: essays research papers

Simple MachinesDefinitionsMachine- A machination that makes rifle easier by changing the speed , direction, oramount of a force.Simple Machine- A device that performs make with only one movement. Simple forges include lever, wheel and axle, disposed plane, screw, and wedge.Ideal Mechanical holdfulness (IMA)- A machine in which work in equals work outsuch a machine would be frictionless and a 100% high-octane IMA= De/DrActual Mechanical Advantage (AMA)- It is pretty much the opposite of IMA meaningit is not 100% efficient and it has friction. AMA= Fr/FeEfficiency- The amount of work put into a machine compared to how much usefulwork is put out by the machine always between 0% and 100%.Friction- The force that resist crusade between two surfaces that are touchingeach other.What do we use machines for?     Machines are use for many things. Machines are used in familiar lifejust to make things easier. You use many machines in a day that you might takefor g ranted. For example a simple indifferent broom is a machine. It is a form ofa lever. Our country or world would never be this evolved if it wasnt formachine. Almost every thing we do has a machine involved. We use machines tomanufacture goods, for transportation, ect.     In the W=F*d equation the trade of between force and distance is as youuse a machine the force goes down and distance goes up. If thither was no frictionthey would be equal and trade.     There are cardinal simple machines. They are a lever, pulleys, habituated plain,wheel and axle, screw, and wedge. The lever is used very often an example of alever is a broom. Your reach out is the fulcrum and when you sweep it is a lever. Alever consist of a fulcrum, effort, and resistance. A pulley is used to lift orpull objects with a reinforcement. To buy the farm a advantage it matters how many lines aregoing to the load. For example if there is 3 lines to the load it is a 3/1adv antage. A inclined plain is used to lift an object easier that with more work. preferably of lifting it straight up you push it a greater distance but with lessforce. A screw is a inclined plain wrapped nigh a cylinder post. Its like aramp around the screw.A wedge is a inclined plain with one or two sloping sides. Chisels,knives, and ax blades are examples of wedges.     IMA is ideal mechanical advantage meaning a frictionless world with 100%efficiency. It is saying that work in and work out are exactly the same.