Advertisements
Advertisements
Question
Answer the following in short.
Why is magnetic force considered as an action-at-a-distance force?
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Give two examples of situations in which you push to change the state of motion of objects.
Fill in the blank.
Force is applied as ........... or ..........
Select the correct alternative.
Friction is increased if
Give one example of force as a pull
Fill in the blank.
Magnetic force is a ................ force.
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.
It is possible that a force applied to an object may not bring any change in it.
Give a reason for the following.
Brake handles of motorcycles are generally covered with a toweled cloth?
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
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?
