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प्रश्न
Answer the following in short.
Using a suitable example, describe how a machine acts as a force multiplier.
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उत्तर
It is very difficult to open the sealed metal cap of a cold drink bottle with our bare hands. A simple machine like a bottle opener (Class II lever) multiplies the applied force and much less effort is required to open the cap. Hence, it acts as a force multiplier.
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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.
Give one example of a class I lever where the mechanical advantage is more than 1.
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
State three differences between the three classes of levers.
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?
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.
Lemon juicer belongs to which type of lever? Why?
Classify the following into levers:
Sugar tongs
