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

Direction of motion _______ in circular motion

Question # 2

If a gymnast is sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will:

Question # 3

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to:

Question # 4

Moment of linear momentum is called.

Question # 5

Centripetal force performs:

Question # 6

Conventional the angular Velocity is Directed at an angle of:

Question # 7

Satellites are held in orbits around Earth by its:

Question # 8

One radian is

Question # 9

When angular acceleration is positive, the body rotates:

Question # 10

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

Question # 11

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 # 12

Direction of angular momentum is determined by:

Question # 13

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:

Question # 14

Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.

Question # 15

Moment of inertia depends upon:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:
A. Along the tangent
B. Toward the centre
C. Away from the centre
D. None of them
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 Circular motion is an example of motion in:
A. One dimension
B. Two dimensions
C. Three dimensions
D. None of these
4 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these
5 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
6 A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:
A. 49 rad/sec2
B. 1 rad/sec2
C. 0.16 rev/sec2
D. Both A and C
7 In rotational motion, analogue of force F us called:
A. Couple
B. Torque
C. Mass
D. Moment of intertia
8 When a body moves with a constant speed in a circle:
A. No work is done on it
B. No acceleration is produced in the body
C. Velocity remains constant
D. None of these
9 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
10 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them

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