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प्रश्न
In the following situations identify the agent exerting the force and the object on which it acts. State the effect of the force in case.
Squeezing a piece of lemon between the fingers to extract its juice.
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उत्तर
The force applied to squeeze the lemon pieces with fingers to extract juice is the muscular force. Lemon juice is extracted by changing the shape of the lemon due to the effect of force.
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संबंधित 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 |
Select the correct alternative.
A body falls downwards because of
Give one example of force as a pull
Fill in the blank.
Magnetic force is a ................ force.
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 |
Give a reason for the following.
Brake handles of motorcycles are generally covered with a toweled cloth?
Can you identify whether it is push or pull that results in motion in the following cases?
 |
 |
 |
| Push / Pull | Push / Pull | Push / Pull |
 |
 |
 |
| Push / Pull | Push / Pull | Push / Pull |
A truck of mass M is moved under a force F. If the truck is then loaded with an object equal to the mass of the truck and the driving force is halved, then how does the acceleration change?
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?
