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Question
Shows a lemon crusher. Name the class of lever.
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Solution
It is second-class of the lever
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 wheelbarrow
Name the class to which the following levers belong:
a pair of pliers
Name the machine to which the following belong:
Beam balance
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.
What is a Class I lever?
Give one example of a class I lever where mechanical advantage is less than 1.
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 |
Name the class of the lever shown in the picture below:
