Advertisements
Advertisements
प्रश्न
The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
Advertisements
उत्तर
| Name of Lever | Lever Class | Fulcrum | Position of Effort | Load | ||
| (i) | Scissors | First | At centre | One end | Other end | |
| (ii) | Sugar tongs | Third | One end | At centre | Other end | |
| (iii) | Nutcracker | Second | One end | Other end | At centre | |
| (iv) | Pliers | First | At centre | One end | Other end | |
संबंधित प्रश्न
The diagram below shows a lever in use:
- To which class of levers does it belong?
- Without changing the dimensions of the lever, if the load is shifted towards the fulcrum what happens to the mechanical advantage of the lever?
State the principle of a lever?
Fig 3.17 below shows a lever in use.
(a) To which class of lever does it belong?
(b) If FA = 80 cm, AB = 20 cm, find its mechanical advantage.
(c) Calculate the value of E.
Define Lever
The following belong to which class of lever?
Human-arm
The following belong to which class of lever?
A claw-hammer
The following belong to which class of lever?
A pair of scissors
The following belong to which class of lever?
Knife
In the following diagram of a wheelbarrow, mark the fulcrum (F) and indicate the directions of load (L) and effort (E) with arrows.
What class of lever is it? Give one more example of the same class of lever.
State the types (or kinds) of lever, and give two examples of each kind.
