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

Circular motion is an example of motion in:

Question # 2

Formula for calculating moment of inertia of the bodies of one pair is same. Tick the answer.

Question # 3

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

Question # 4

Direction of motion ______ in circular motion:

Question # 5

Einstein's theory about gravity if better than Newton's because it gave explanation of:

Question # 6

When angular acceleration is positive, the body rotates:

Question # 7

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 # 8

Centripetal acceleration is also called ______ acceleration:

Question # 9

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

Question # 10

One radian is:

Question # 11

Moment of linear momentum is called.

Question # 12

Angular velocity is a:

Question # 13

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

Question # 14

One radian is equal to:

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Centripetal acceleration is also called ________ acceleration
A. Tangential
B. Radial
C. Angular
D. None of these
2 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
3 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these
4 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of them
5 Direction of motion ______ in circular motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
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:
A. 0.05 m
B. 0.08 m
C. 0.8 m
D. 0.008 m
7 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
8 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
A. 980 N
B. 580 N
C. 1380 N
D. Zero
9 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
10 In case of planets, the necessary acceleration is provided by:
A. Gravitational force
B. Coulomb force
C. Frictional force
D. None of these

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