| 1 |
a ball is thrown vertically upward. Its velocity at the highest point is. |
- A. 10 ms<sup>-2</sup>
- B. -10 ms<sup>-1</sup>
- C. Zero
- D. none of them
|
| 2 |
The value of gravitational acceleration when a body is moving in downward direction is. |
- A. 10 ms<sup>-1</sup>
- B. 10 ms<sup>-2</sup>
- C. 10 m
- D. -10 ms
|
| 3 |
The unit of velocity and speed is. |
- A. ms
- B. ms<sup>-2</sup>
- C. ms<sup>-1</sup>
- D. ms-3
|
| 4 |
A straight line parallel to time-axis ona distance -time graph tells that the object is. |
- A. Moving with constant speed
- B. In motion
- C. At rest
- D. Moving with variable speed
|
| 5 |
Brownian motion is an example of. |
- A. Linear motion
- B. Random motion
- C. Circular motion
- D. Vibratory motion
|
| 6 |
In graph referenc epoint is taken as. |
- A. Origin
- B. x-axis
- C. variable
- D. coordinates
|
| 7 |
A change in position from point A to B is called. |
- A. Distance
- B. Velocity
- C. Speed
- D. Displacements
|
| 8 |
If the velocity of body decreases with time then acceleration will be. |
- A. Positive
- B. Negative
- C. Variable
- D. Uniform
|
| 9 |
If an object is moving with constant speed then its distance time graph will be a straight line. |
- A. Along time -axis
- B. Along distance -axis
- C. Inclined to time - axis
- D. Parallel to time-axis
|
| 10 |
Paratrooper while coming down attains a velocity called. |
- A. Variable velocity
- B. Uniform velocity
- C. Average velocity
- D. Terminal velocity
|
