Advertisements
Advertisements
प्रश्न
What is a lever?
Advertisements
उत्तर
A lever is a simple rigid bar that is free to move around a point called the fulcrum.
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
In class II levers, the load is in between fulcrum and .........
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
Name the machine to which the following belong:
Lemon crusher
Tick the most appropriate answer.
Which of the following is a Class II lever?
Tick the most appropriate answer.
A pair of scissors is an example of a/an
Answer the following in a word or two or in a sentence.
Give one example of a machine used to multiply speed.
Answer the following in short.
Using a suitable example, describe how a machine acts as a force multiplier.
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
Classify the following into levers:
Wheel barrow
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).
