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प्रश्न
Answer the following.
What is a Class I lever?
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उत्तर
In Class I levers (also called levers of first order), the fulcrum lies between the load and the effort, i.e., the load and the effort are on the opposite sides of the fulcrum.
Examples: See-saw, pairs of scissors, pliers, beam balance, etc.
The mechanical advantage of a Class I lever is always greater than one. These levers act as force multipliers.
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संबंधित प्रश्न
Name the class to which the following lever belong:
a crowbar
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
How can you increase the mechanical advantage of a lever?
Tick the most appropriate answer.
A pair of scissors is an example of a/an
Answer the following in short.
Using a suitable example, describe how a machine acts as a force multiplier.
Explain why the mechanical advantage of a class II of lever is always more than 1.
Name the load, effort, and fulcrum.
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 |
 |
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1. ______ 2. ______ 3. ______ |
1. ______ 2. ______ 3. ______ |
1. ______ 2. ______ 3. ______ |
Match the following:
| 1. | Class I lever | a. | Wheelbarrow |
| 2. | Class II lever | b. | Seesaw |
| 3. | Class III lever | c. | Axe |
| 4. | Wedge | d. | Hockey sick |
second-order lever ______.
Differentiate Class I lever and Class II lever.
