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प्रश्न
What is a lever?
एका वाक्यात उत्तर
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उत्तर
A lever is a simple rigid bar that is free to move around a point called the fulcrum.
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संबंधित प्रश्न
Name the class to which the following lever belong:
an oar rowing a boat.
Name the class to which the following levers belong:
a pair of pliers
Tick the most appropriate answer.
Which of the following is a Class II lever?
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
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?
Classify the following into levers:
A door
Classify the following into levers:
A fishing rod
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).
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 |
