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प्रश्न
Answer the following in short.
Why is magnetic force considered as an action-at-a-distance force?
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उत्तर
Magnetic force comes into play even when the magnet and other objects (like iron) are kept at a distance and not in direct contact with each other. Hence, magnetic-force is considered as an action-at-a-distance force.
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संबंधित प्रश्न
Give two examples of situations in which you push to change the state of motion of objects.
Select the correct alternative.
A body falls downwards because of
Select the correct alternative.
Friction is increased if
Name the term used for the push or pull?
Give one example of force as a pull
What do you mean by the gravitational force? Give an example to illustrate it.
Match the following.
| Column A | Column B |
| 1. Non-contact forces | a. perpendicular to surface |
| 2. Catapult | b. an act of push or pull |
| 3. Force | c. unit of force |
| 4. Normal force | d. action-at-a-distance forces |
| 5. Newton | e. contact force |
State if the following statement is true or false. Correct the statement if it is false.
Two equal and opposite forces acting on an object balance out each other.
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 |
A horse continues to apply force in order to move a cart with a constant speed. Explain why?
