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प्रश्न
What is a lever?
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उत्तर
A lever is a simple rigid bar that is free to move around a point called the fulcrum.
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संबंधित प्रश्न
Name the class to which the following lever belong:
a see-saw
How can you increase the mechanical advantage of a lever?
State three differences between the three classes of levers.
Answer the following.
Name the simplest of all types of machines.
Give one example of a class I lever where mechanical advantage is 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?
Which type of lever has a mechanical advantage always more than one? Give one example. What change can be made in this lever to increase its mechanical advantage?
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:
A fishing rod
