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प्रश्न
Answer the following.
What is a Class I lever?
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उत्तर
In Class I levers (also called levers of first order), the fulcrum lies between the load and the effort, i.e., the load and the effort are on the opposite sides of the fulcrum.
Examples: See-saw, pairs of scissors, pliers, beam balance, etc.
The mechanical advantage of a Class I lever is always greater than one. These levers act as force multipliers.
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संबंधित प्रश्न
Which class of lever has the mechanical advantage always more than 1? Give an example.
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
Name the class to which the following lever belong:
a pair of sugar tongs
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
Name the machine to which the following belong:
Lemon crusher
Tick the most appropriate answer.
A pair of scissors is an example of a/an
Draw a labelled diagram of a class II lever. Give one example of such a lever.
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).
A ______ lever will always have M.A. > 1.
