Force and Motion: Types of Levers

The video tutorial explains the three classes of levers: first, second, and third. It describes the position of the fulcrum, load, and effort in each class, providing examples like scissors, wheelbarrows, and tweezers. The tutorial concludes with a summary of the characteristics of each lever class.

In a first class lever, where is the fulcrum located?

• In the middle

• At the load end

• At one end

• Between the effort and the load

Which of the following is an example of a first class lever?

• Scissors

• Tweezers

• Wheelbarrow

• Nutcracker

In a second class lever, what is the position of the load?

• At the fulcrum

• Between the fulcrum and the effort

• At the effort end

• In the middle of the effort

Which tool is a common example of a second class lever?

• Nutcracker

• Scissors

• Tweezers

• Seesaw

In a third class lever, where is the effort applied?

• At one end

• Between the fulcrum and the load

• At the load end

• At the fulcrum