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 body can have constant velocity when it follows:

Question # 2

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

Question # 3

Angular momentum is a:

Question # 4

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 # 5

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

Question # 6

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

Question # 7

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:

Question # 8

Conventional the angular Velocity is Directed at an angle of:

Question # 9

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 9.8 m sec-2comes out to be

Question # 10

One radian is equal to:

Question # 11

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

Question # 12

When a body moves with a constant speed in a circle:

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

Which one is related to angular motion:

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these
2 Moment of inertia depends upon:
A. Mass
B. Selection of axis of rotation
C. Both of them
D. None of these
3 Centripetal acceleration is also called _______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
4 Einstein's theory about gravity if better than Newton's because it gave explanation of:
A. Inverse square law
B. Bending of light
C. Both A and B
D. None of above
5 The instantaneous acceleration of a body moving with constant speed in a circle:
A. Remains constant
B. Is called centripetal acceleration
C. Tangential acceleration
D. None of these
6 In case of planets, the necessary acceleration is provided by:
A. Gravitational force
B. Coulomb force
C. Frictional force
D. None of these
7 Direction of angular momentum is determined by:
A. Right hand rule
B. Head to tail rule
C. Left hand rule
D. None of them
8 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
9 When a 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
10 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these

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