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

00:00
Question # 1

One radian is equal to:

Question # 2

The useful unit of angular replacement in SI unit is:

Question # 3

Direction of motion _______ in circular motion

Question # 4

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 # 5

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

Question # 6

A body can have constant velocity when it follows:

Question # 7

When angular acceleration is positive, the body rotates:

Question # 8

When a body moves with a constant speed in a circle:

Question # 9

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

Question # 10

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

Question # 11

Conventionally the angular velocity is directed to an angle of:

Question # 12

Moment of inertia depends upon:

Question # 13

Conventionally the angular velocity is directed at an angle of

Question # 14

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:

Question # 15

When a body is 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 Moment of linear momentum is called.
A. Moment arm
B. Moment of inertia
C. Inertia
D. Angular momentum
2 A car is turning around a corner at 10 m/sec as it travels along an arc of a 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
3 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
A. KHz
B. MHz
C. GHz
D. BHz
4 An axis of rotation
A. Is a straight line
B. Is normal to the plane of rotation
C. Passes through pivot point O
D. All of them
5 Centripetal acceleration is also called _______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
6 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these
7 Conventionally 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 the above
8 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
9 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
10 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

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  • Ahmed Qureshi

    Ahmed Qureshi

    14 Feb 2018

    wt

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