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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.
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उत्तर
The levers are of three kinds :
Class I levers that have fulcrum in between the load and the effort.
Eg. See - Saw
Class II levers which have load in between the fulcrum and the effort
Eg. - Nut - Cracker
Class Ill levers which have effort in between the fulcrum and the Load
Eg. - Forceps.
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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:
an oar rowing a boat.
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
A lever of length 100 cm has the effort of 15 kgf at a distance of 40 cm from the fulcrum at one end. What load can be applied at its other end?
Answer the following.
State the principle of levers.
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
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.
Explain why the mechanical advantage of the class III type of lever is always less than 1.
Classify the following into levers:
Sugar tongs
