Simple Machines
About this set
Created by:
mrruiz5 on December 3, 2010
Classes:
barryhughesscienceclass, Streete 5th Science, Intro Tech, STM 5th Grade, A+ Peeps, STM 5th Grade 2011-2012 (see more)
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16 terms
Terms | Definitions |
|---|---|
 pulley | can be fixed or moveable, can change the a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope |
| inclined plane | a simple machine consisting of a flat surface with one end higher than the other |
| lever | consists of 2 parts a bar and fulcrum, there are 3 types, makes it easier to lift things. |
| gears | two or more wheels linked together by interlocking teeth |
| wheel and axle | simple machine that consists of a shaft or axle attached to the center of a larger wheel, so that the shaft and the wheel rotate together |
| wedge | pushes things apart by changing the direction of the force |
| screw | a spiral inclined plane that increases force to move deep inside something. |
| gravity | force that pulls 2 things together |
| force | push or pull |
| inertia | causes objects at rest to remain at rest and objects in motion to remain in motion |
| energy | the ability to do work |
| work | when force is used to move an object, only occurs when something moves |
| load | object being lifted or moved |
| effort force | amount of force needed to move something |
| simple machines | one of six objects that help you do work includes levers, pulleys, wheels and axles, inclined planes, wedges, screws, and gears |
| efficiency | the amount of useful work a machine puts out compared to the amount of work that is put in |
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