Simple Machines
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| Simple Machine | A machine that does work with only one movement
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| Wheel and Axle | a simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects
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| Pulley | Pulley
A simple machine that consists of a rope that fits into a groove in a wheel. Used to lift things.
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| Inclined Plane | A flat surface set at an angle or an incline with no moving parts that is able to lift objects by pushing or pulling the load.
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| Wedge | An object that comes to a thin edge and is used for splitting or for cutting. Is used by being driven into something.
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| Screw | An inclined plane wrapped around a cylinder. Used to put things together
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| Lever | a simple machine that consists of a bar that pivots at a fixed point called a
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| What is the purpose of a pulley? | The purpose of a pulley is to make lifting heavy objects easier by distributing the force.
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| When you add multiple pulleys together, what happens to the amount of force needed? | The amount of force needed is reduced because the weight of the object/load is divided by the number of pulleys
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| To use the least amount of force while using a pulley you should... | Use several pulleys together
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| What is the relationship between the number of pulleys and the weight of an object/load? | The weight is divided by the number of pulleys
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| The disadvantage to using a lever | Force must be applied over a longer distance.
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| Examples of levers: | wrench, seesaw
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| Examples of wheel and axles: | bicycle, tires
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| Examples of a wedge: | saw, scissors,
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| Gears | wheels with teeth that can either increase the speed of a machine or its force, but not both at the same time
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| Examples of gears: | clock, lock on a safe
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| Examples of screws: | Camera Tripod, things that put objects together
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| Examples of pulleys: | Water well/wishing well
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| Fulcrum | The fixed point that a lever rotates around
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| mechanical advantage | Ratio of the force exerted by a machine to the force applied to the machine.
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Created by:
BadBunny
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