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प्रश्न
State three differences between the three classes of levers.
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उत्तर
| Class I | Class II | Class III | |
| 1. | It has the fulcrum between the load and effort. | It has the load between the fulcrum and effort. | It has an effort between the fulcrum and the load. |
| 2. | The effort arm can be shorter, equal to or longer than the load arm. | The effort arm is bigger than the load arm. | The effort arm is always shorter than the load arm. |
| 3. | The mechanical advantage can be less than, equal to, or greater than 1. | The mechanical advantages are always greater than 1. | The mechanical advantages are always less than 1. |
| 4. | The load and effort are in the same direction. | The load and effort are in opposite directions. | The load and effort are in opposite directions. |
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संबंधित प्रश्न
State whether the following statement is True or False.
All levers are force multipliers.
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
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a pair of forceps
Name the machine to which the following belong:
Beam balance
Answer the following in a word or two or in a sentence.
Which type of machine is used to squeeze a lemon?
Answer the following in short.
What is the basis of the classification of levers?
Shows a lemon crusher. Name the class of lever.
Classify the things below.
| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
