1. First order lever :
Levers in which the fulcrum (F) is situated somewhere in between the weight (W) and the effort (E) are called first order levers. For example, a crowbar, a pair of scissors, a pliers.
2. Second order lever :
In such levers, weight (W) is situated between fulcrum (F) and effort (E) are called second order lever. For example chopping board (karikatta) fruit cutter.
3. Third order lever :
The levers in which effort (E) is situated in between weight (W) and fulcrum (F) are called third order lever, For example, A pair of tongs, holding weight in a hand.
