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प्रश्न
Match the following columns
| Column A | Column B |
| a) Non contact force | 1) repel |
| b) Like poles | 2) kg |
| c) Contact force | 3) gravitational force |
| d) Mass | 4) wear and tear |
| e) Weight | 5) force of friction |
| f) Friction | 6) kgf |
जोड्या लावा/जोड्या जुळवा
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उत्तर
| Column A | Column B |
| a) Non contact force | 3) gravitational force |
| b) Like poles | 1) repel |
| c) Contact force | 5) force of friction |
| d) Mass | 2) kg |
| e) Weight | 6) kgf |
| f) Friction | 4) wear and tear |
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Force - Push or Pull
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Select the correct alternative.
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Match the following.
| Column A | Column B |
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| 3. Force | c. unit of force |
| 4. Normal force | d. action-at-a-distance forces |
| 5. Newton | e. contact force |
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State if the following statement is true or false. Correct the statement if it is false.
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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 |
