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प्रश्न
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
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उत्तर
less than 1: The load arm of a pair of scissors.
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संबंधित प्रश्न
Name the class to which the following lever belong:
A pair of scissors
Name the class to which the following lever belong:
an oar rowing a boat.
How does the friction at the fulcrum affect the mechanical advantage of the lever?
A lever of length 100 cm has the effort of 15 kgf at a distance of 40 cm from the fulcrum at one end. What load can be applied at its other end?
Tick the most appropriate answer.
Which of the following is a Class II lever?
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.
Using a suitable example, describe how a machine acts as a force multiplier.
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).
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
