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

Satellites are held in orbits around Earth by its:

Question # 2

Direction of motion _________ in circular motion

Question # 3

Moment of linear momentum is called.

Question # 4

Angular velocity is a:

Question # 5

A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:

Question # 6

Centripetal acceleration is also called ______ acceleration

Question # 7

Conventionally the angular velocity is directed at an angle of

Question # 8

The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:

Question # 9

Radian is defined as the angle subtended at the center of a circle by an arc of:

Question # 10

Direction of motion _______ in circular motion

Question # 11

The useful unit of angular replacement in SI unit is:

Question # 12

Conventionally the angular velocity is directed to an angle of:

Question # 13

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

Question # 14

Centripetal acceleration is also called ______ acceleration:

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 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of
A. KHz
B. MHz
C. GHz
D. BHz
2 Direction of motion _______ in circular motion
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
3 If a gymnast 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. Remain constant
D. None of these
4 A body moving along the circumference of a circle of radius R completes one revolution. The radius of a covered path to the angle subtended at the centre is:
A. Radius of the circle
B. Twice the radius
C. Thrice the radius
D. None of these
5 Formula for calculating moment of inertia of the bodies of one pair is same. Tick the answer.
A. Disc, sphere
B. sphere, hoop
C. Thin rod, hoop
D. Hoop,disc
6 When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:
A. Along the tangent
B. Toward the centre
C. Away from the centre
D. None of them
7 A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:
A. 49 rad/sec2
B. 1 rad/sec2
C. 0.16 rev/sec2
D. Both A and C
8 The useful unit of angular replacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
9 Radian is defined as the angle subtended at the center of a circle by an arc of:
A. Length equal to its diameter
B. Length equal to its radius
C. Any length
D. None of these
10 In rotational motion, analogue of force F us called:
A. Couple
B. Torque
C. Mass
D. Moment of intertia

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