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प्रश्न
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
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उत्तर
- When the mechanical advantage is greater than 1, the lever serves as a force multiplier, enabling us to overcome a sizeable resistive force with a small effort.
- When the mechanical advantage is equal to 1, the lever is applied in a physical balance with equal lengths of both arms.
- When the mechanical advantage is less than 1, the levers are used to obtain the gain in speed. This implies that the load-displacement is greater than the displacement of effort.
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संबंधित प्रश्न
Give one example of a class I lever where the mechanical advantage is more than 1.
Name the class to which the following lever belong:
a lemon squeezer
Name the class to which the following lever belong:
an oar rowing a boat.
Name the class to which the following levers belong:
a pair of pliers
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
Tick the most appropriate answer.
A pair of scissors is an example of a/an
Answer the following in a word or two or in a sentence.
Given an example of a Class I lever.
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
Both a pair of scissors and a pair of pliers belong to the same class of levers. Name the class of lever. Which one has the mechanical advantage less than 1?
Explain why the mechanical advantage of a class II of lever is always more than 1.
