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

Conventionally the angular velocity is directed at an angle of

Question # 2

The instantaneous acceleration of a body moving with constant speed in a circle:

Question # 3

One radian is equal to:

Question # 4

The useful unit of the angular displacement in SI unit is:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Direction of motion _______ in circular motion

Question # 9

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

Question # 10

In case of planets, the necessary acceleration is provided by:

Question # 11

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

Question # 12

A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:

Question # 13

A rotating body tends to be slower, when its angular acceleration is:

Question # 14

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

Question # 15

Circular motion is an example of motion in:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 If a gymnast is sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will:
A. Increase
B. Decrease
C. Remains constant
D. None of these
2 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
3 Angular momentum is a:
A. vector quantity
B. Imaginary quantity
C. Complex Quantity
D. Scalar Quantity
4 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
5 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of them
6 A rotating body tends to be slower, when its angular acceleration is:
A. Positive
B. Negative
C. Zero
D. Infinity
7 The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
A. 3
B. 24
C. 126
D. 200
8 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
A. KHz
B. MHz
C. GHz
D. BHz
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
A. 980 N
B. 580 N
C. 1380 N
D. Zero
10 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

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