Machines, Tools that make work easier., 6 Simple Machines, lever, pulley, screw, wheel and axle, inclined plane, wedge, simple machine, a device that only needs a SINGLE input force to do work, force, A push or pull on an object., wedge, A triangle shaped tool that is wide at one end and pointed at the other to help cut or split other objects., wheel and axle, A rod attached to a wheel. It makes it easier to move or turn things. (Lever arm fixed to a shaft), screw, An inclined plane wrapped around a cylinder or cone. Commonly used to fasten objects together. Uses rotary motion., pulley, A wheel that has a rope wrapped around it. Used to lift heavy objects by changing the direction or amount of the force., inclined plane, A flat surface that is raised so one end is higher than the other. It helps move heavy objects up or down., lever, A stiff bar resting on a pivot (called the fulcrum) that makes moving objects easier. Effort force, load, fulcrum., Seesaw, Crowbar, Shovel, Examples of LEVERS, Ramp, Stairs, Ladder, Examples of INCLINED PLANES, Knife, Door stop, zipper, Examples of WEDGES, Bicycle wheel, Doorknob, Roller Skates, Examples of WHEELS AND AXLES, Jar lid, light bulbs, Examples of SCREWS, Flag Pole, elevators, Examples of PULLEYS, work, The transfer of energy that occurs when a force makes an object move. It equals FORCE x DISTANCE, 1st class lever, A lever where the fulcrum is between the effort and load Ex: scissors, 2nd class lever, A lever where the load is between the fulcrum and effort Ex: a wheelbarrow, 3rd class lever, A lever where the effort is between the load and fulcrum EX: A fishing rod, block and tackle pulley, a pulley system made up of fixed and movable pulleys, mechanical advantage, a measure of how much a simple machine increases or decreases the force applied., kinetic energy, the energy of motion, Actual Mechanical Advantage (AMA), determined by the physical measurement of forces, Ideal Mechanical Advantage (IMA), Determined by physical dimensions.

Simple Machines

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