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प्रश्न
What do you mean by the mechanical advantage of a lever?
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उत्तर
The mechanical advantage of a lever is equal to the ratio of the effort arm to the load arm. This is also called the principle of a lever.
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संबंधित प्रश्न
Describe three orders of levers giving an example of each. Draw neat diagrams showing the positions of fulcrum, load, and effort in each kind of lever.
Name the class to which the following lever belong:
a crowbar
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a beam balance
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a nutcracker
State three differences between the three classes of levers.
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).
Differentiate Class I lever and Class II lever.
Classify the following into levers:
Claw hammer
