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प्रश्न
Classify the things below.
| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
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उत्तर
| Sl. No | Examples | Class of Lever |
| 1. | Spade | Class III lever |
| 2. | Seesaw | Class I lever |
| 3. | Wheel barrow | Class II lever |
| 4. | Plier | Class I lever |
| 5. | Nail cutter | Class I lever |
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संबंधित प्रश्न
Which class of lever has the mechanical advantage always less than 1? Give an example.
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
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
How does the friction at the fulcrum affect the mechanical advantage of the lever?
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
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 |
Classify the following into levers:
Sugar tongs
