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Vocab Sheet 3 Scienc

Mrs. Tharrington Machines Vocab 3rd grade Science

Simple Machine a machine with few or no moving parts
Compound Machine a combination of two or more simple machines
Load The object you are trying to move
Lever a stiff bar that moves about a fixed point (fulcrum). It is used to push, pull, or lift things.
Fulcrum The part the stiff bar rest on. It is here the lever pivots
Wedge wide at one end and pointed at the other to help cut or split other objects.
Screw an inclined plane wrapped around a cylinder of cone. A common use is to hold objects together
Inclined Plane a flat surface that is raised so one end is higher than the other. It helps move objects up or down
Wheel and Axle consists of a rod attached to a wheel. It makes it easier to move or turn things
Pulley a wheel that has a rope wrapped around it. They are used to lift heavy objects by changing the direction or amount of the force
Created by: svjenkl



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