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

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 # 2

Moment of linear momentum is called.

Question # 3

Centripetal acceleration is also called ______ acceleration:

Question # 4

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

Question # 5

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 # 6

Centripetal acceleration is also called ______ acceleration

Question # 7

In rotational motion, analogue of force F us called:

Question # 8

Circular motion is an example of motion in:

Question # 9

One radian is equal to:

Question # 10

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

Question # 11

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

Question # 12

When angular acceleration is positive, the body rotates:

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 of the following pairs does not have identical dimensions?

Question # 15

The number of "Earth stations" which transmit signals to satellites and receive signals from them are:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
A. KHz
B. MHz
C. GHz
D. BHz
2 Centripetal acceleration is also called ______ acceleration
A. Tangential
B. Radial
C. Angular
D. None of them
3 A stone is tied to the end of a 20 cm along string is whirled in a horizontal circle.
if centripetal acceleration is 9.8 m/sec2, then its angular velocity in rad/sec is:
A. 22/7
B. 7
C. 14
D. 21
4 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
5 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
6 The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
A. 3
B. 24
C. 126
D. 200
7 Direction of motion _________ in circular motion
A. Changes off and on
B. Changes continously
C. Does not change
D. None of them
8 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
A. KHz
B. MHz
C. GHz
D. BHz
9 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
10 The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:
A. 2.5 sec
B. 0.06 sec
C. 15.7 sec
D. 0.4 sec

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  • Ahmed Qureshi

    Ahmed Qureshi

    14 Feb 2018

    wt

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