Motion The acceleration of an object moving in a straight line can be determined
from:
(1) The area between the distance-time graph and time axis.
(2) The area between the velocity-time graph and time axis
(3) The slope of the velocity-time graph.
(4) The slope of the distance-time graph.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion The distance travelled by a body is directly proportional to the time, then the body is said to have -
(1) Zero speed
(2) Zero velocity
(3) Constant speed
(4) None of these
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion A body is moving with uniform velocity of 10 ms–1
The velocity of the body after 10 s is -
(1) 100 ms–1
(2) 50 ms–1
(3) 10 ms–1
(4) 5 ms–1
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion If you whirl a stone on the end of the string and the string suddenly breaks,
the stone will:
(1) Fly off along the tangent to its circular path.
(2) Fly directly towards you.
(3) Spiral away from your hand.
(4) Spiral in towards your hand.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Motion
The figure above shows distance-time graphs of two objects X and Y. Which object
is mov ing
with greater speed?
(1)
Both objects are at rest
(2)
Both objects are moving with same speed
(3)
Object Y
(4)
Object X
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion The displacement-time graph for a body is given below. State whether the
velocity and acceleration of the body in the region DE are positive , negative
or Zero.
(1)
V= +v e but a=0
(2)
V = -ve and a = -ve
(3)
V = + ve and a = + ve
(4)
V = +ve and a = -ve
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion
A ball is thrown vertically upwards. Which of the following plot represents the velocity time graph of the ball during its flight, if the air resistance is not ignored ?
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion The slope of the distance-time graph is:
(1)
Distance
(2)
acceleration
(3)
Speed
(4)
Displacement
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Motion The area under a velocity-time graph is represented by the unit:
(1) m
(2) m-1
(3) m3
(4) m2
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Motion Distance covered by a body from velocity-time graph is
(1)
Equal to the slope of the graph.
(2)
Area under the graph .
(3)
Is de note d by a line parallel to the time axis at any point on the distance
axis.
(4)
Is denoted by a line parallel to the distance axis at any point on the time axis
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
