difference between first class lever and third class lever
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a first class lever the effort (force) moves over a large distance to move the load a smaller distance, and the fulcrum is between the effort (force) and the load. ... With third class levers the effort is between the load and the fulcrum, for example in barbecue tongs.
The difference between the three classes depends on where the force is, where the fulcrum is and where the load is. In a first class lever, the fulcrum is located between the input force and output force. In a second class lever, the output force is between the fulcrum and the input force.
third-class lever is another example of a simple machine comprising a beam placed upon a fulcrum. ... In third-class levers, the fulcrum remains at one end of the beam—however, the force of the effort is now located between the fulcrum and the force of the load.
Examples include see-saws, crow bars, hammer claws, scissors, pliers, and boat oars. The claw end of a hammer, along with the handle, is a Class 1 Lever. When pulling a nail, the nail is the Load, the Fulcrum is the head of the hammer, and the Force or effort is at the other end of the handle, which is the Beam.
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