ECAT Pre Engineering Physics Chapter 5 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 5 Circular Motion

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

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Physics ECAT Pre Engineering Chapter 5 Circular Motion

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Question # 1

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

Question # 2

Centripetal acceleration is also called _______ acceleration:

Question # 3

When body moves along a circular path with constant speed, it has an acceleration, which is always directed;

Question # 4

One radian is:

Question # 5

In rotational motion, analogue of force F us called:

Question # 6

When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:

Question # 7

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

Question # 8

The rear wheels of an automobile are rotating with an angular velocity of 14 rev/sec which is reduced to 38 rad/sec in 5 second when brakes are applied. Its angular acceleration is:

Question # 9

INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:

Question # 10

When angular acceleration is positive, the body rotates:

Question # 11

Direction of motion_______ in circular of motion:

Question # 12

Which one is related to angular motion:

Question # 13

The useful unit of angular replacement in SI unit is:

Question # 14

______ plays the same role during angular motion as played by the mass in linear motion

Question # 15

One radian is

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:
A. 9.42 rad/sec
B. 2.6 rev/sec
C. 1.5 rev/sec
D. Both A and C
2 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
3 The rear wheels of an automobile are rotating with an angular velocity of 14 rev/sec which is reduced to 38 rad/sec in 5 second when brakes are applied. Its angular acceleration is:
A. 5 rad/sec2
B. -10 rev/sec2
C. -10 rad/sec2
D. -5 rev/sec2
4 The useful unit of the angular displacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
5 Direction of motion _________ in circular motion
A. Changes off and on
B. Changes continously
C. Does not change
D. None of them
6 A disc rolls down a hill and its speed at bottom is found to be 11.4 m/sec. Height of the hill is then nearly:
A. 10 m
B. 12 m
C. 13 m
D. 15 m
7 A car is turning around a corner at 10 m/sec as it travels along an arc of 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
8 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
9 Which one is related to angular motion:
A. Moment of a force
B. Moment of inertia
C. Moment of momentum
D. None of these
10 Conventional the angular Velocity is Directed at an angle of:
A. 90° to the axis of rotation
B. 30° to the axis of rotation
C. 0° to the axis of rotation
D. None of above

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