MDCAT Physics Chapter 4 Circular Motion MCQ's Test

MCQ's Test For MDCAT Physics Chapter 4 Circular Motion MCQ's Test

Try The MCQ's Test For MDCAT Physics Chapter 4 Circular Motion MCQ's Test

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MDCAT Physics Chapter 4 Circular Motion MCQ's Test

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Question # 1

What happens to the centripetal acceleration of a particle, when its speed is doubled and angular velocity is halved?

Question # 2

Two satellites are going around the earth at a height of 250 km and 450 km respectively. If angular speed for both is same, then centripetal acceleration will be.

Question # 3

For a particle moving in uniform circular motion

Question # 4

A point on the rim of wheel 400 cm in diameter has a velocity of 1600 cms-1 . The angular velocity of the wheel is:

Question # 5

On slightly disturbing a body which is an unstable equilibrium, its center of gravity

Question # 6

Which statement about geostationary orbit is false?

Question # 7

A particle is moving with constant speed by keeping itself at constant distance from a fixed point in a given plane. Its motion is

Question # 8

The radius of orbit of a geostationary satellite depends upon:

Question # 9

Geo stationary satellite remains

Question # 10

A body of mass m tied to a string is moved in a vertical circle of radius r. the difference in tensions at the lowest point and the highest point is.

Question # 11

The force which provides the necessary centripetal force to keep the mud in circular path is called

Question # 12

If a rotating body is moving counter clockwise, direction of angular velocity will be

Question # 13

The mud flies off the tyre of a fast moving car in the direction

Question # 14

When a particle moves in a uniform circular motion. It has:

Question # 15

Torque is necessary for producing.

Question # 16

The ratio of angular speeds of minute hand and hour hand of a watch is:

Question # 17

A body revolved around the sun 27 times faster then the earth what is the ratioof their radii

Question # 18

A body moving in a circular path with a constant speed has a

Question # 19

A body is moving in a circle with a constant speed. it has

Question # 20

A stone attached to one end of a string is revolved around a stick so that the string winds on the stick and gets shortened) What is conserved)

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MCAT Physics Chapter 4 Important MCQ's

Sr.# Question Answer
1 For a particle in uniform circular motion the relation a = r 𝑎 of accelerations hold. The acceleration 'a'
A. is centripetal acceleration
B. Is tangential acceleration
C. is radical acceleration
D. both A and B
2 The angular momentum changes form 2 units to 6 units in 4s. the torque is
A. 1 unit
B. 3/2unit
C. 1/2unit
D. 4unit
3 For a particle moving in uniform circular motion
A. Velocity is transverse and acceleration is radical
B. Velocity is radial and acceleration is transverse
C. Both velocity and acceleration are radial
D. Both velocity and acceleration are transverse
4 For a body moving with constant speed in a horizontal circle, which of the following remains constant?
A. Velocity
B. Centripetal force
C. Acceleration
D. Kinetic energy
5 A car of 1000kg traveling at 20m/sec rounds a curve of radius 100m. Find the necessary centripetal force
A. 4 x 103 kg m/s2
B.
3 x 103 kg m/s2
C.
5 x 103kg m/s2
D.
4.5 x 103kg m/s2
6 For a particle in circular motion the centripetal acceleration
A. may be more or less than its tangential acceleration
B. equal to its tangential acceleration a
C. more than its tangential acceleration
D. less than its tangential acceleration
7 The force which provides the necessary centripetal force to keep the mud in circular path is called
A. cohesive force
B. adhesive force
C. frictional force
D.
gravitational force
8 A stone of mass 0.5kg tied with a string of length 1m is moving in a horizontal circle with a speed of 4ms-1 . The tension acting on the string in newton is:
A. 2
B. 0.2
C. 8
D. 0.8
9 Torque is necessary for producing.
A. angular speed
B. linear acceleration
C. angular acceleration
D. none of these
10 The angular analogue of linear displacement is called
A. angular velocity
B. angular displacement
C. angular momentum
D. moment of force

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