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प्रश्न
Answer the following in short.
Using a suitable example, describe how a machine acts as a force multiplier.
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.
APPEARS IN
संबंधित प्रश्न
Name the class to which the following lever belong:
A pair of scissors
Name the machine to which the following belong:
Beam balance
Name the machine to which the following belong:
Lemon crusher
Name the machine to which the following belong:
Sugar tongs
Answer the following.
What is a Class I lever?
Tick the most appropriate answer.
A pair of scissors is an example of a/an
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.
Classify the following into levers:
Wheel barrow
A ______ lever will always have M.A. > 1.
