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Question
What is a lever?
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Solution
A lever is a simple rigid bar that is free to move around a point called the fulcrum.
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RELATED QUESTIONS
Name the class to which the following lever belong:
A pair of scissors
Name the class to which the following lever belong:
a beam balance
How does the friction at the fulcrum affect the mechanical advantage of the lever?
Answer the following.
Name the simplest of all types of machines.
Answer the following.
What is 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?
Class III levers have mechanical advantage less than one. Why are they then used?
Name the load, effort, and fulcrum.
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 |
 |
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1. ______ 2. ______ 3. ______ |
1. ______ 2. ______ 3. ______ |
1. ______ 2. ______ 3. ______ |
Classify the things below.
| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
Differentiate Class I lever and Class II lever.
