Advertisements
Advertisements
प्रश्न
What do you mean by the gravitational force? Give an example to illustrate it.
उत्तर
The force of attraction on a body by the earth is called gravitational force.
Example: The leaves and fruits fall from a tree downwards towards the ground, water in a river flows down streams, a ball thrown up goes to a height, and then returns back on the ground are some examples of motion due to gravitational force
APPEARS IN
संबंधित प्रश्न
To move a loaded trolley we have to ______ it.
In the following situation identify the agent exerting the force and the object on which it acts. State the effect of the force in case.
A load suspended from a spring while its other end is on a hook fixed to a wall.
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 |
Fill in the blank.
Magnetic force is a ................ 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 |
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
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 horse continues to apply force in order to move a cart with a constant speed. Explain why?
In 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?