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प्रश्न
Explain why the mechanical advantage of a class II of lever is always more than 1.
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उत्तर
- With Class II levers, the load L is positioned somewhere between the effort E and the fulcrum F.
- The fulcrum F and the effort E are located at the two ends of the lever.
- As a result, the effort arm is always longer than the load arm, and the load and the effort are on the same side of the fulcrum but moving in different directions.
- Therefore, the mechanical advantage is always greater than 1.
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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?
Name the class to which the following lever belong:
a pair of sugar tongs
Name the class to which the following lever belong:
a beam balance
Name the class to which the following lever belong:
a crowbar
How can you increase the mechanical advantage of a lever?
How does the friction at the fulcrum affect the mechanical advantage of the lever?
Answer the following in a word or two or in a sentence.
Given an example of a Class I lever.
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 |
