Advertisements
Advertisements
प्रश्न
Explain the meaning of the term force.
Advertisements
उत्तर
Force is a physical cause that changes or may tend to change the state of rest or the state of motion of an object. The S.I. unit of force is Newton.
APPEARS IN
संबंधित प्रश्न
To move a loaded trolley we have to ______ it.
Fill in the blank.
On pulling a string, its .................. increases.
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
Name the term used for the push or pull?
State the effect produced by a force in the following case:
A man pushes a heavy cart
Answer the following in short.
Why is magnetic force considered as an action-at-a-distance force?
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 |
Answer the following in detail.
Differentiate between contract and non-contract force. Support your answer with suitable examples.
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?
