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simple machines
levers, pulleys, wedges
16
Science
5th Grade
10/04/2012

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Term
compound machine
Definition
Two or more simple machines working together. Some examples are: screwdriver, can opener, pencil sharpener.
Term
simple machines
Definition
simple machines are simple tools used to make work easier.
Term
inclined plane
Definition
a simple machine with a slope surface that makes it easier to lift objects or move objects across distances; for example a moving van ramp
Term
Wedge
Definition
Instead of using the smooth side of the inclined plane, you can use the pointed edges to do other kinds of work. For example: a wedge can push things apart. Example: an axe blade
Term
Screw
Definition
An inclined plane wrapped around a cylinder, its sharp edge becomes another simple tool: the screw.
Term
A Wedge
Definition
is made of two inclined planes. Example axe blade or chisel
Term
A Force
Definition
is a push or pull
Term
a Pulley
Definition
A pulley is a surface with a rope or a chain going around it. Example: a flagpole
A pulley is a type of wheel and axle.
Term
A screw is:
Definition
A simple machine that is an inclined plane wrapped around a rod that holds objects together.
Term
The amount of work you do depends on:
Definition
how far you move an object
Term
A person moving furniture would use a simple machine to move boxes. Which simple machine would he use?
Definition
a ramp
Term
chisel
Definition
one example of a wedge
Term
a machine is something that is used to change the size or direction of a force or motion to make work....
Definition
easier
Term
When you ride a bicycle you would apply force to the...
Definition
pedal
Term
Lever
Definition
a simple machine made from a bar or rod that is free to rotate around a fulcrum; examples include seesaws
Term
Wheel and axle
Definition
a simple machine that is made with two wheels of different sizes that are connected and turn together.. for example a doorknob and fishing reels
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