Advertisements
Advertisements
Question
Give one example of a class I lever where the mechanical advantage is more than 1.
Advertisements
Solution
A shear is a class I lever with an M.A. more than 1.
APPEARS IN
RELATED QUESTIONS
Which class of lever has the mechanical advantage always less than 1? Give an example.
Name the class to which the following lever belong:
a lemon squeezer
Name the class to which the following lever belong:
a beam balance
Name the class to which the following levers belong:
a pair of pliers
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.

Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a pair of forceps
How does the friction at the fulcrum affect the mechanical advantage of the lever?
In a lever, the fulcrum is at one end at a distance of 30 cm from the load and effort is at the other end at a distance of 90 cm from the load. Find :
(a) the length of load arm,
(b) the length of effort arm, and
(c) the mechanical advantage of the lever.
Answer the following.
State the principle of levers.
Answer the following.
What is a Class I lever?
Answer the following in a word or two or in a sentence.
Given an example of a Class I 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?
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 |
Classify the following into levers:
Claw hammer
Classify the following into levers:
Sugar tongs
