The Inclined Plane

An inclined plane is a machine that can reduce the amount of force necessary to move an object.
 The Ramp
 

The ramp is a machine because it makes the task of raising an object easier. An inclined plane is a surface set at an angle to the horizontal.  
This ramp leads to a picnic! 
Try this on-line experiment! 
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The Screw 
 
A screw is an inclined plane. 
The thread of a screw is an inclined plane that is pushed down into the wood as the screw is turnd by the screwdriver. 
     
The Wedge
A wedge is an inclined plane that can be used to penetrate or split an object. What kind of machine is the hammer? 
Test yourself