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Various Types of Levers

Levers Simple machines terms/vocabulary:
  • The fulcrum is a pivot point.
  • The effort is the force put in to moving the lever
  • The resistance is the item being moved
  • The effort arm is the part of the lever to which force is applied
  • The resistance arm is the part of the lever that moves the mass
There are three basic types of levers.
First Class Lever, Second Class Lever, Third Class Lever
First Class Lever
Entered/Authored by Chris Modified Saturday, 24 November 2007 10:29

Also known as: Class one lever

Description: Resistance and effort are on opposite sides of the fulcrum. The closer the resistance is to the fulcrum, the smaller the effort needed to move the resistance.

Link to this (#403)
Second Class Lever
Entered/Authored by Chris Modified Saturday, 24 November 2007 10:29

Also known as: Class two lever

Description: Resistance and effort are on the same side of the fulcrum. The input effort is located at one end of the bar and the fulcrum is located at the opposite end of the bar. The output load is at a point along the bar.

Link to this (#404)
Third Class Lever
Entered/Authored by Chris Modified Saturday, 24 November 2007 10:29

Also known as: Class three lever

Description: The resistance (load) and the fulcrum are on opposite sides of the effort. The effort applied is higher than the load, and the resistance moves faster than the effort.

Link to this (#405)
 
 
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