Q:
What Are 1st, 2nd and 3rd Class Levers?
A:
Quick Answer
The first class lever uses the fulcrum in between the applied force and load, the second class lever uses the load between the fulcrum and applied force and the third class lever uses the applied force between the fulcrum and the load. Levers help to lift heavy objects.
Continue ReadingFull Answer
Levers are one of the simplest machines. An example of a first class lever is a seesaw or balance beam, an example of a second class lever is a wheelbarrow and an example of a third class lever is the human forearm. In the human forearm, the elbow acts as the fulcrum, the applied force is the bicep muscle and the hand acts as the load.
Learn more about Motion & MechanicsSources:
Related Questions
-
Q:
How Do People Use Levers?
A: A lever is a basic machine people use to move a load around a pivot by applying force. Many common tools, such as scissors, pliers and tongs are types of l... Full Answer >Filed Under: -
Q:
What Is an Output Arm?
A: An output arm is the end of a lever that moves the load up when force is applied to the other end of the lever. The upward force that moves the output arm ... Full Answer >Filed Under: -
Q:
What Is a Class 2 Lever?
A: A class 2 lever is a lever with the fulcrum or joint at one end, with the load that is being carried in the middle. The effort, which is the object lifting... Full Answer >Filed Under: -
Q:
The Fixed Point on Which a Lever Moves Is Called?
A: The fixed point on which a lever moves is called the fulcrum. A lever is a simple machine with three parts: effort, load and the fulcrum. The lever would b... Full Answer >Filed Under:
