ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 5 Circular Motion

Try The MCQ's Test For ECAT Physics Chapter 5 Circular Motion

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ECAT Physics Chapter 5 Circular Motion

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Question # 1

The useful unit of angular replacement in SI unit is:

Question # 2

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

Question # 3

A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed V of the car is:

Question # 4

When angular acceleration is positive, the body rotates:

Question # 5

Conventionally the angular velocity is directed at an angle of

Question # 6

A point on the rim of a wheel moves 0.2 m where the wheel turns through an angle is 14.3 degrees. The radius of the wheel is:

Question # 7

Which of the following pairs does not have identical dimensions?

Question # 8

A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:

Question # 9

Moment of linear momentum is called.

Question # 10

One radian is equal to:

Question # 11

The number of countries who manage the largest satellite system is:

Question # 12

Satellites are held in orbits around Earth by its:

Question # 13

One radian is:

Question # 14

A body moving along the circumference of a circle of radius R completes one revolution. The radius of a covered path to the angle subtended at the centre is:

Question # 15

A 1000 Kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is
A. 0.05 m
B. 0.08 cm
C. 0.8 m
D. 0.008 m
2 A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed V of the car is:
A. 38 m/sec
B. 3.8 m/sec
C. 0.6 m/sec
D. None of these
3 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these
4 Direction of motion _______ in circular motion
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
5 A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:
A. 1 m
B. 5 m
C. 10 m
D. 15 m
6 Circular motion is an example of motion in:
A. One dimension
B. Two dimensions
C. Three dimensions
D. None of these
7 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
8 The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
A. 3
B. 24
C. 126
D. 200
9 A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:
A. 38 m/sec
B. 3.8 m/sec
C. 0.6 m/sec
D. None of these
10 When body moves along a circular path with constant speed, it has an acceleration, which is always directed;
A. Along the tangent
B. Towards the centre
C. Away from the centre
D. None of them

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