A row boat is considered a second-class lever. In this type of lever, the load is located between the effort and the fulcrum. The oar acts as the effort, the load is the boat and the rower, and the pivot point is the fulcrum.
The oar of a boat falls under the class 1 lever, where the fulcrum is between the effort (force applied) and the load (boat).
Yes, oars on a boat are a type of first-class lever because the pivot point (fulcrum) is at one end, the effort is applied at the other end where the rower pulls, and the resistance is the water pushing against the blade. The oar's position and function follow the principles of a first-class lever.
lever,wedge
That's called a tiller.
lock and key is the lever of second type
A steering lever can be called a tiller if a person is referring to a boat steering lever or a rudder control. Other words used for a steering lever include helm and rein.
a second class lever
A dustpan is a 2nd class lever
A lever type can opener
3rd Class Lever
first class lever