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

  • Total Questions15

  • Time Allowed20

Physics ECAT Pre Engineering Chapter 5 Circular Motion

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Question # 1

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

Question # 2

When angular acceleration is positive, the body rotates:

Question # 3

Direction of motion_______ in circular of motion:

Question # 4

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

Question # 5

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 # 6

A body moving along the circumference of a circle of radius R completes one revolution. The radius of the covered path to the angle subtended at the center is:

Question # 7

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

Question # 8

Direction of motion _________ in circular motion

Question # 9

A stone tied to the end of a 20 cm long string is whirled in a horizontal circle. If centripetal acceleration is 9.8 m/sec2, then its angular velocity is rad/sec is:

Question # 10

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

Question # 11

The useful unit of angular replacement in SI unit is:

Question # 12

One radian is

Question # 13

Angular velocity is a:

Question # 14

Conventional the angular Velocity is Directed at an angle of:

Question # 15

One radian is equal to:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Which of the following pairs does not have identical dimensions?
A. Torque and energy
B. Energy and work
C. Momentum and impulse
D. Mass and moment of inertia
2 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these
3 Direction of motion _________ in circular motion
A. Changes off and on
B. Changes continously
C. Does not change
D. None of them
4 The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
A. 3
B. 24
C. 126
D. 200
5 When 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
6 A 1000 Kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be:
A. 8.1 X 107N
B. 625 N
C. 6250 N
D. None of these
7 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
8 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
9 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
10 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these

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  • Ahmed Qureshi

    Ahmed Qureshi

    14 Feb 2018

    wt

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