Simple Machines

" They make our lives easier."

There are six simple machines

Machines make "work" easier. Think about how easy raising a flag on a flag pole is when you use a pulley.

Now, imagine having to do it without a pulley. A pulley is one of the six simple machines.

 
Inclined Plane - a simple machine that is a straight, slanted surface.
 
Pulley - a simple machine consisting of a grooved wheel that holds a rope or cable.
 
Lever - a simple machine consisting of a bar that pivots at a fixed point, called a fulcrum.
 
Wedge - a simple machine that is a doubled inclined plane that moves; a wedge is often used for cutting
 
Wheel and Axle - a simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects.
 
Screw - a simple machine that is an inclined plane wrapped around a spiral.
       

Complex machines are made up of 2 or more simple machines.

Click on either one of the links below to explore the uses of simple and complex machines.

 

Play a Simple Machines Game!!! ....>>>.........>>>>>>>..Watch a Movie!!!

               Take a practice quiz

1.  A jar lid is an example of a:_________________. 

pulley    wedge   screw    inclined plane 


2.  A ramp is an example of a ____________________.

pulley    wedge    screw    inclined plane 


3.  A ladder is an example of a ____________________.

pulley    wheel axle    screw    inclined plane 


4.  A can opener is an example of a ____________________.

lever    wheel axle    screw    wedge 


5.  A pair of scissors is a complex (compound) machine made of _____________ and _______________.

lever and wedge    wheel axle and lever    screw and pulley    wedge and pulley 


6.  A _________________ would help you raise a flag on a flag pole.

lever    pulley    screw    wedge 


7.  A machine made up of more than one machine is called a ____________________________machine

simple    complex    complicated   wedges 


8.  The simple machine used most often for cutting something is the ____________________________

lever    pulley    screw    wedge 


9.  A light bulb is considered a _________________________

lever    pulley    screw    wedge 


 

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