Motion The displacement covered by a seconds’ hand of radius r in a clock after
one revolution is:
(1) 360 degree
(2) zero
(3) 3r
(4) 2r
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 2 Solution : -. |
Motion A quantity has a value of -16 m/s2 . It is be the :
(1)
Acceleration of an object.
(2)
Retardation of an object.
(3)
Velocity of an object.
(4)
Speed of an object.
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 2 Solution : -. |
Motion The velocity-time graph of a body moving in a straight line is shown in figure. The displacement and distance travelled by
the body in 6 second are respectively-
(1) 8m , 16m
(2) 16m, 8m
(3) 16m, 16m
(4) 8m, 8m
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 1 Solution : -. |
Motion The area under the speed-time graph gives the ________.
(1)
velocity
(2)
distance
(3)
acceleration
(4)
time
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 2 Solution : -. |
Motion Velocity-time graph AB (Figure) shows that the body has-
(1) A uniform acceleration
(2) A non uniform retardation
(3) Uniform speed
(4) Initial velocity OA and is moving with uniform retardation
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 4 Solution : -. |
Motion Two bodies in circular paths of radii 1 : 2 take same time to complete their circles. The ratio of their linear speeds is-
(1) 1 : 2
(2) 2 : 1
(3) 1: 3
(4) 3 : 1
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 1 Solution : -. |
Motion
Which motion does the graph of distance and time shows for accelerated motion?
(1) Non-uniformly accelerated
(2) Constant accelerated
(3) Uniformly accelerated
(4) Uniformly retarded motion
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 3 Solution : -. |
Motion On the distance-time graph, the Y-axis should be labelled as:
(1)
Distance
(2)
Displacement
(3)
Speed
(4)
Time
A. | Option 1 |
B. | Option 2 |
C. | Option 3 |
D. | Option 4 |
Option: 1 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 : -. |