Simple Machines :: essays research papers

Simple MachinesDefinitionsMachine- A craft that makes employ easier by changing the speed , direction, oramount of a force.Simple Machine- A device that performs work with only one movement. Simplemachines include lever, wheel and axle, inclined plane, screw, and wedge.Ideal Mechanical Advantage (IMA)- A machine in which work in equals work outsuch a machine would be frictionless and a 100% efficient 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 motion between two surfaces that are signatureeach other.What do we use machines for?Machines are used for many another(prenominal) things. Machines are used in everyday lifejust to make things easier. You use many machines in a day that you might takefor granted. For exampl e a simple ordinary broom is a machine. It is a form ofa lever. Our earth 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 there was no frictionthey would be equal and trade.There are six simple machines. They are a lever, pulleys, inclined plain,wheel and axle, screw, and wedge. The lever is used very very much an example of alever is a broom. Your hand is the fulcrum and when you sweep it is a lever. Alever consist of a fulcrum, effort, and resistance. A pulley is used to overrule orpull objects with a utility. To get a advantage it matters how many lines aregoing to the load. For example if there is 3 lines to the load it is a 3/1advantage. A inclined plain is used to lift an object easier but with more work.Instead of lifting i t straight up you push it a great distance but with lessforce. A screw is a inclined plain wrapped around a cylinder post. Its like aside 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.