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प्रश्न
Fill in the blank.
On pulling a string, its .................. increases.
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उत्तर
On pulling a string, its length increases.
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संबंधित प्रश्न
Fill in the blank.
Force is applied as ........... or ..........
Give one example of force as a push
Give one example of force as a pull
State the effect produced by a force in the following case:
A man pushes a heavy cart
State if the following statement is true or false. Correct the statement if it is false.
It is possible that a force applied to an object may not bring any change in it.
Match the following.
| Column A | Column B |
| 1. Rolling friction | a. making grooved designs |
| 2. Static friction | b. regular oiling |
| 3. Reducing friction | c. a book placed on a tabletop |
| 4. Increasing Friction | d. wheels of a car |
Solve the crossword puzzle.
Across
1. Type of force which depends upon the roughness of a surface
2. An effect of friction
3. The force of friction caused due to fluids
4. Type of friction acting between two bodies at rest
5. Type of friction which occurs when applied force overcomes static friction
6. A special body design to enable minimum drage Down
Answer the following in detail.
Differentiate between contract and non-contract force. Support your answer with suitable examples.
A horse continues to apply force in order to move a cart with a constant speed. Explain why?
In the following figure, two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?
