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

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

Question # 2

Direction of motion_______ in circular of motion:

Question # 3

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

Question # 4

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

Question # 5

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 # 6

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 # 7

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 # 8

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

Question # 9

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to:

Question # 10

One radian is:

Question # 11

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

Question # 12

One radian is equal to:

Question # 13

In rotational motion, analogue of force F us called:

Question # 14

A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:

Question # 15

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:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 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
2 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
3 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
4 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
A. KHz
B. MHz
C. GHz
D. BHz
5 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
6 Direction of motion ______ in circular motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
7 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
8 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
9 The number of countries who manage the largest satellite system is:
A. 3
B. 24
C. 126
D. 200
10 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

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