-
question_answer1)
The numerical ratio of displacement and distance for a moving object is (NCERT Exemplar)
A)
always less than 1 done
clear
B)
always equal to 1 done
clear
C)
always more than 1 done
clear
D)
equal to or less than 1 done
clear
View Solution play_arrow
-
question_answer2)
In which of the following cases of motion, the distance moved and the magnitude of displacement are equal?
A)
If the car is moving on a straight road done
clear
B)
If the car is moving on a circular road done
clear
C)
If the pendulum is moving to and fro done
clear
D)
If a planet is moving around the sun done
clear
View Solution play_arrow
-
question_answer3)
Magnitude of displacement is greater than the distance travelled by the object.
A)
True done
clear
B)
False done
clear
C)
Can't say done
clear
D)
Partially true/false done
clear
View Solution play_arrow
-
question_answer4)
Odometer measures ......... covered by the vehicles.
A)
distance done
clear
B)
displacement done
clear
C)
frame of reference done
clear
D)
reference point done
clear
View Solution play_arrow
-
question_answer5)
If an object is moving with constant velocity, then the motion is
A)
speed done
clear
B)
uniform acceleration done
clear
C)
uniform motion done
clear
D)
non-uniform motion done
clear
View Solution play_arrow
-
question_answer6)
What does the path of an object look like when it is in a uniform motion?
A)
Straight done
clear
B)
Curved done
clear
C)
Zig-zag done
clear
D)
Circular done
clear
View Solution play_arrow
-
question_answer7)
The speed of a moving object is determined to be 0.06 m/s. This speed is equal to
A)
2.16 km/h done
clear
B)
1.08 km/h done
clear
C)
0.216 km/h done
clear
D)
0.0216 km/h done
clear
View Solution play_arrow
-
question_answer8)
The ratio of magnitudes of average speed and average velocity, is
A)
always less than one done
clear
B)
always equal to one done
clear
C)
always more than one done
clear
D)
equal to or more than one done
clear
View Solution play_arrow
-
question_answer9)
Speedometer is a device which is used to measure
A)
average speed done
clear
B)
average acceleration done
clear
C)
instantaneous speed done
clear
D)
instantaneous acceleration done
clear
View Solution play_arrow
-
question_answer10)
A motorcar travels with a speed \[{{v}_{1}}\] from A to B and returns back from B to A with a speed \[{{v}_{2}}\]. The average speed of the car during its journey is
A)
\[\frac{{{V}_{1}}+{{V}_{2}}}{2}\] done
clear
B)
\[\frac{{{V}_{1}}{{V}_{2}}}{{{V}_{1}}+{{V}_{2}}}\] done
clear
C)
\[\frac{2{{V}_{1}}{{V}_{2}}}{{{V}_{1}}+{{V}_{2}}}\] done
clear
D)
\[\sqrt{{{V}_{1}}{{V}_{2}}}\] done
clear
View Solution play_arrow
-
question_answer11)
A bridge is 400 m long. A 150 m long train crosses the bridge at a speed of 50 m/s. Time taken by the train to cross it.
A)
5 s done
clear
B)
8 s done
clear
C)
6 s done
clear
D)
11 s done
clear
View Solution play_arrow
-
question_answer12)
To specify the speed of an object, we - require only .......
A)
magnitudes done
clear
B)
direction done
clear
C)
Both [a] and [b] done
clear
D)
None of the above done
clear
View Solution play_arrow
-
question_answer13)
An object travels 24 m with a speed of 4 m/s and then another 32 m with speed of 8 m/s . The average speed of the object is
A)
6 m/s done
clear
B)
4 m/s done
clear
C)
5.6m/s done
clear
D)
6.5m/s done
clear
View Solution play_arrow
-
question_answer14)
A particle moving in a straight line covers half the distance with speed of 3 m/s. The another half of the distance is covered in two equal time intervals with speed of 4.5 m/s and 7.5 m/s, respectively. The average speed of the particle during this motion is
A)
4.0 m/s done
clear
B)
5.0 m/s done
clear
C)
5.5m/s done
clear
D)
4.8m/s done
clear
View Solution play_arrow
-
question_answer15)
A point object transverses half the distance with velocity \[{{v}_{0}}\]. The remaining part of the distance is covered with velocity \[{{v}_{1}}\] for the half of the time and with velocity \[{{v}_{2}}\] for the rest half. The average velocity of the object for the whole journey is
A)
\[2{{V}_{1}}\left( {{V}_{0}}+{{V}_{2}} \right)/\left( {{V}_{0}}+2{{V}_{1}}+2{{V}_{2}} \right)\] done
clear
B)
\[2{{V}_{0}}\left( {{V}_{0}}+{{V}_{1}} \right)/\left( {{V}_{0}}+{{V}_{1}}+{{V}_{2}} \right)\] done
clear
C)
\[2{{V}_{0}}\left( {{V}_{1}}+{{V}_{2}} \right)/\left( {{V}_{1}}+{{V}_{2}}+2{{V}_{0}} \right)\] done
clear
D)
\[2{{V}_{2}}\left( {{V}_{0}}+{{V}_{1}} \right)/\left( {{V}_{1}}+2{{V}_{2}}+{{V}_{0}} \right)\] done
clear
View Solution play_arrow
-
question_answer16)
Rajeev went from Delhi to Chandigarh and returned to Delhi on his motorbike. The odometer of that read 4200 km at the start of trip and 4460 km at the end of his trip. If Rajeev took 4 h 20 min to complete his trip, then find the average velocity in km/h.
A)
zero done
clear
B)
60 km/h done
clear
C)
6 km/h done
clear
D)
180 km/h done
clear
View Solution play_arrow
-
question_answer17)
If velocity of an object decreases with time, then it is called
A)
retardation done
clear
B)
de-acceleration done
clear
C)
negative acceleration done
clear
D)
All of the above done
clear
View Solution play_arrow
-
question_answer18)
A particle is travelling with a constant speed. This means
A)
its position remains constant as time passes done
clear
B)
it covers equal distance in equal time intervals done
clear
C)
its acceleration is zero done
clear
D)
it does not change its direction of motion done
clear
View Solution play_arrow
-
question_answer19)
A particle cannot be accelerated if its...... is constant.
A)
Speed done
clear
B)
Velocity done
clear
C)
Distance done
clear
D)
Displacement done
clear
View Solution play_arrow
-
question_answer20)
The acceleration of a car that speeds up from 12 m/s to 30 m/s in 15 s, is
A)
\[2.4\text{ }m/{{s}^{2}}\] done
clear
B)
\[1.2\text{ }m/{{s}^{2}}\] done
clear
C)
\[2\text{ }m/{{s}^{2}}\] done
clear
D)
\[5.2\text{ }m/{{s}^{2}}\] done
clear
View Solution play_arrow
-
question_answer21)
If the displacement of an object is proportional to the square of time, then the object is moving with
A)
a uniform velocity done
clear
B)
a uniform acceleration done
clear
C)
increasing acceleration done
clear
D)
decreasing acceleration done
clear
View Solution play_arrow
-
question_answer22)
A woman is wearing her seat belt, while driving at 60 km/h. She finds it necessary to slam on her brakes and slows uniformly to a stop in 1.6 s. What is the average acceleration experienced by her?
A)
\[-10.4\ m/{{s}^{2}}\] done
clear
B)
\[10.4\ m/{{s}^{2}}\] done
clear
C)
\[1.04\ m/{{s}^{2}}\] done
clear
D)
\[-1.04\ m/{{s}^{2}}\] done
clear
View Solution play_arrow
-
question_answer23)
The position of a particle moving along the X-axis at certain times is given below |
t(s) |
0 |
1 |
2 |
3 |
x(m) |
-2 |
0 |
6 |
16 |
Which of the following describes the motion correctly?
A)
Uniform, accelerated done
clear
B)
Uniform, decelerated done
clear
C)
Non-uniform, accelerated done
clear
D)
There is not enough data for generalisation. done
clear
View Solution play_arrow
-
question_answer24)
Match the Column I with Column II and choose appropriate option from the codes given below
| Column I (Acceleration) | | Column II (Example) |
(a) | In the direction of motion | 1. | Motion of freely falling body |
(b) | Against the direction of motion | 2. | Car moves through congested market |
(c) | Uniform | 3. | Brakes applied to |
(d) | Non-uniform | 4. | Train starts moving from a station |
Codes
A)
A-1, B-2, C-3, D-4 done
clear
B)
A-3, B-2, C-1, D-4 done
clear
C)
A-4, B-3, C-1, D-2 done
clear
D)
A-2, B-4, C-1, D-3 done
clear
View Solution play_arrow
-
question_answer25)
Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs are shown in figure. Choose the correct statement.
A)
Car A is faster than car D done
clear
B)
Car B is the slowest done
clear
C)
Car D is faster than car C done
clear
D)
Car C is the slowest done
clear
View Solution play_arrow
-
question_answer26)
The displacement-time graph for two particles A and B are straight line inclined at angles of \[30{}^\circ \] and \[60{}^\circ \] with the time axis. The ratio of velocities, \[{{v}_{A}}:{{v}_{B}}\] is
A)
1 : 2 done
clear
B)
1 :\[\sqrt{3}\] done
clear
C)
\[\sqrt{3}\] : 1 done
clear
D)
1 : 3 done
clear
View Solution play_arrow
-
question_answer27)
Slope of a velocity-time graph gives (NCERT Exemplar)
A)
the distance done
clear
B)
the displacement done
clear
C)
the acceleration done
clear
D)
the speed done
clear
View Solution play_arrow
-
question_answer28)
The area under the velocity-time graph gives the value of ......... .
A)
distance done
clear
B)
displacement done
clear
C)
acceleration done
clear
D)
speed done
clear
View Solution play_arrow
-
question_answer29)
From the given v-t graph (see figure), it can be inferred that the object is (NCERT Exemplar) |
|
A)
in uniform motion done
clear
B)
at rest done
clear
C)
in non-uniform motion done
clear
D)
moving with uniform acceleration done
clear
View Solution play_arrow
-
question_answer30)
The speed-time graph of an object moving in a fixed direction is shown in figure. |
|
The object |
A)
is at rest done
clear
B)
moves with a constant speed done
clear
C)
moves with a constant velocity done
clear
D)
moves with a constant acceleration done
clear
View Solution play_arrow
-
question_answer31)
The velocity-time graph of an object thrown vertically up is
A)
B)
C)
D)
View Solution play_arrow
-
question_answer32)
Velocity-time graph for a moving object is found to be curved line, then its acceleration is
A)
constant done
clear
B)
variable done
clear
C)
zero done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer33)
A)
A-3, B-4, C-2, D-1 done
clear
B)
A-4, B-3, C-1, D-2 done
clear
C)
A-4, B-1, C-2, D-3 done
clear
D)
A-1, B-2, C-3, D-4 done
clear
View Solution play_arrow
-
question_answer34)
A body moving with an initial velocity of 5 m/s accelerates at \[2 m/{{s}^{2}}\]. Its velocity after 10 s is
A)
20 m/s done
clear
B)
25 m/s done
clear
C)
5 m/s done
clear
D)
22.5m/s done
clear
View Solution play_arrow
-
question_answer35)
A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is (NCERT Exemplar)
A)
u/g done
clear
B)
\[{{u}^{2}}\]/2g done
clear
C)
\[{{u}^{2}}\]/g done
clear
D)
u/2g done
clear
View Solution play_arrow
-
question_answer36)
A car retards uniformly at the rate of \[5 m/{{s}^{2}}\] and stops in 10 s. The initial velocity of car is
A)
10 m/s done
clear
B)
5 m/s done
clear
C)
50 m/s done
clear
D)
25 m/s done
clear
View Solution play_arrow
-
question_answer37)
A body starting from rest and moving with a constant acceleration, covers a distance \[{{s}_{1}}\] in the 4th second and a distance \[{{s}_{2}}\] in the 6th second. The ratio \[\frac{{{s}_{1}}}{{{s}_{2}}}\] is
A)
\[\frac{2}{3}\] done
clear
B)
\[\frac{4}{9}\] done
clear
C)
\[\frac{6}{11}\] done
clear
D)
\[\frac{7}{11}\] done
clear
View Solution play_arrow
-
question_answer38)
A train starting from rest attains a velocity of 90 km/h in 2 min, then the distance travelled by the train for attaining this velocity is
A)
1.5 km done
clear
B)
2 km done
clear
C)
2.5 km done
clear
D)
1.2 km done
clear
View Solution play_arrow
-
question_answer39)
A ball is released from the top of a tower of height h metre. It takes T sec to reach the ground. What is the position of the ball in \[\frac{T}{3}\] sec?
A)
\[\frac{h}{9}\] m from the ground done
clear
B)
\[\frac{7h}{9}\] m from the ground done
clear
C)
\[\frac{8h}{9}\]m from the ground done
clear
D)
\[\frac{17h}{18}\] m from the ground done
clear
View Solution play_arrow
-
question_answer40)
A particle is moving in a circular path of radius r. The displacement after half a circle would be (NCERT Exemplar)
A)
zero done
clear
B)
\[\pi r\] done
clear
C)
2r done
clear
D)
2\[\pi r\] done
clear
View Solution play_arrow
-
question_answer41)
A body performs uniform circular motion, then
A)
its velocity is constant done
clear
B)
its speed is constant done
clear
C)
an acceleration works towards centre done
clear
D)
Both [b] and [c] done
clear
View Solution play_arrow
-
question_answer42)
The motion of blades of an electric fan around the axle is an example of
A)
uniform circular motion. done
clear
B)
linear motion done
clear
C)
uniform retarded motion done
clear
D)
Non-uniform motion done
clear
View Solution play_arrow
-
question_answer43)
Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of \[10\text{ }m{{s}^{-1}}\]It implies that the boy is (NCERT Exemplar)
A)
at rest done
clear
B)
moving with no acceleration done
clear
C)
in accelerated motion done
clear
D)
moving with uniform velocity done
clear
View Solution play_arrow
-
question_answer44)
The minute hand of a wall clock is 14 m long. The distance and displacement covered by the tip of minute hand from 9 : 00 am to 9 : 30 am, are
A)
88 cm, 28 cm done
clear
B)
28 cm, 44 cm done
clear
C)
28 cm, 88 cm done
clear
D)
28 cm, 28 cm done
clear
View Solution play_arrow
-
question_answer45)
A boy moving along a circular path of radius 10 m completes 3/4th of the circle in 10 s. The magnitude of speed and velocity are
A)
4.71 m/s and 47.1 m/s done
clear
B)
4.71 m/s and 1.41 m/s done
clear
C)
1.41 m/s and 4.71 m/s done
clear
D)
1.41 m/s and 1.41 m/s done
clear
View Solution play_arrow