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This mock test of Motion Compulsory Test Class 9 for Class 9 helps you for every Class 9 entrance exam.
This contains 20 Multiple Choice Questions for Class 9 Motion Compulsory Test Class 9 (mcq) to study with solutions a complete question bank.
The solved questions answers in this Motion Compulsory Test Class 9 quiz give you a good mix of easy questions and tough questions. Class 9
students definitely take this Motion Compulsory Test Class 9 exercise for a better result in the exam. You can find other Motion Compulsory Test Class 9 extra questions,
long questions & short questions for Class 9 on EduRev as well by searching above.

QUESTION: 1

How far would you travel moving at 12m/s for 3.00 minutes?

Solution:

QUESTION: 2

1km/h = ---- m/s

Solution:

QUESTION: 3

A body moving from rest with uniform acceleration travels a distance X in the first t seconds and travels a distance Y with same acceleration in the next 2t seconds, then

Solution:

For a body at rest, u = 0. Thus, we have

S = 1/2 at ^2

X = 1/2 at ^2

Y = 1/2 a (2t)^2

= 1/2 a * 4t^2

Y = 4x

QUESTION: 4

If a moving body comes to rest, then its acceleration is-

Solution:

QUESTION: 5

The equations of motion can be derived by using

Solution:
The First Equation of Motion. Consider an object moving so that its velocity-time graph is a straight line. Such an object is undergoing constant acceleration, since the slope of the graph is constant. The first equation of motion gives the final velocity after a time t for these objects, given an initial velocity v0 .

QUESTION: 6

The third equation of motion is

Solution:

QUESTION: 7

A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizontal reaches 30^{o}, the box starts to slip and slides 4.0 m down the plank in 4.0 s. The coefficients of static and kinetic friction between the box and the plank will be respectively

Solution:

Given a plank with a box on it one end is gradually raised about the end having angle of inclination is 30^{0}, the box starts to slip and slides down 4 m the plank in 4 s as shown in a figure.

Thus, coefficient of kinetic friction between the box and the plank is 0.51

QUESTION: 8

A cat runs around the boundary of a square field of side 6m in 10s. The displacement of the cat in 1 minute is

Solution:
After running around the boundary of the square field, the cat reaches the same spot thus the displacement of the body is zero.

QUESTION: 9

The area under the speed-time graph gives the -----

Solution:

QUESTION: 10

Solution:

QUESTION: 11

An athlete uniformly increases his speed from rest at the rate of 1m/s^{2 }.The time taken to complete 200m race is:

Solution:

QUESTION: 12

For a body starting from rest and moving with uniform acceleration, the ratio of the distances covered for 1s,2s,3s… is

Solution:

we need to use the formula, S = ut+(1/2)at^2, but initial velocity u = 0, hence S = (1/2)at^2

Distance covered in 1 sec S1 = (1/2)a ;

Distance covered in 2 sec S2 = (1/2)ax4 ;

Distance covered in 3 sec S3 = (1/2)ax9 ;

S1:S2:S3 = 1:4:9

QUESTION: 13

Solution:

QUESTION: 14

Area under v-t graph represents a physical quantity which has the unit:

Solution:

QUESTION: 15

Name the instrument used to measure instantaneous speed of vehicle

Solution:

QUESTION: 16

If you move 5km north, 5km east and 5km south, then your displacement is

Solution:

QUESTION: 17

The ratio of CGS to MKS unit of acceleration is

Solution:

C.G.S unit of acceleration = 1 cm/s^{2}

M.K.S. unit of acceleration = 1m/s^{2}

C.G.S unit of acceleration/ M,K.S unit of acceleration =

1cm/^{s2} / 1m/^{s2}

= 1cm / 100 cm

= 1/100

=1:100

QUESTION: 18

If a train is travelling due north and its braked are applied, it will have?

Solution:

QUESTION: 19

A car increases its speed from 20km/h to 40km/h in 10 seconds. Its acceleration is

Solution:

QUESTION: 20

If the speed-time graph is a straight line parallel to the time axis, then the body is

Solution:
Speed-time graph is a straight line parallel to time axis, it means that the speed of the object is not changing with time i.e., the object is performing uniform motion.

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