Motion What is true about scalar quantities ?
(1) Scalars quantities have direction also.
(2) Scalars can be added arithmetically.
(3) There are special laws for scalar addition.
(4) Scalars have special method to represent.
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 2 Solution : -. |
Motion
In the distance-time graph of a cyclist, what is happening between B-C and C-D?
(1)
B-C: cyclist is coming back to where he started, C-D: cyclist is stationary.
(2)
B-C: cyclist is stationary, C-D: cyclist is accelerating.
(3)
cyclist is stationary, C-D- speed is increasing
(4)
B-C: cyclist is stationary, C-D: cyclist is coming back to where he started.
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 4 Solution : -. |
Motion 40 A body starts falling from height 'h' and travels distance h/2 during
the last second of motion. The time of travel (in sec.) is-
(1) √ 2 -1
(2) 2 + √2
(3) √2+ √3
(4) √3 +2
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 2 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 If car A is at 80 km/h and car B is at 60 km/h in the same direction, what is
the velocity of thecar A relative to the car B?
(1)
40 km/h
(2)
20 km/h
(3)
10 km/h
(4)
30 km/h
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 2 Solution : -. |
Motion In case of a moving body-
(1) Displacement > Distance
(2) Displacement < Distance
(3) Displacement ³
Distance
(4) Displacement £ Distance
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 4 Solution : -. |
Motion At the top of its path a projectile has
(1) no acceleration
(2) acceleration in the upward direction
(3) acceleration in the downward direction
(4) acceleration in the horizontal direction
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 3 Solution : -. |
Motion The velocity time graph of two bodie s A and B traveling along the +x
direction are given in
the figure . Which body has a greater acceleration?
(1) Body A has a greater acceleration
(2) Body B has a greater acceleration
(3) Both A and B have same acceleration
(4) Acceleration cannot be predicted from the given graph
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 1 Solution : -. |
Motion Which sentence best describes the athlete whose distance-time graph is shown below?
(1)
The athlete ran forward for 3 seconds, and then he ran backward for 3 more
seconds.
(2)
The athlete ran forward for 3 seconds, and then he stood still for 3 more
seconds.
(3)
The athlete ran forward for 3 seconds, and then he ran forward for 3 more
seconds but with
a lower speed.
(4)
The athlete ran forward for 3 seconds, and then he moved forward for 3 more
seconds with a greater
speed.
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 3 Solution : -. |