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प्रश्न
How does the friction at the fulcrum affect the mechanical advantage of the lever?
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उत्तर
Friction at the fulcrum reduces the mechanical advantage.
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संबंधित प्रश्न
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
Name the machine to which the following belong:
Lemon crusher
Answer the following in a word or two or in a sentence.
Given an example of a Class I lever.
Answer the following in short.
What is the basis of the classification of levers?
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?
Shows a lemon crusher. Name the class of lever.
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).
Classify the things below.
| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
second-order lever ______.
Classify the following into levers:
Sugar tongs
