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

An axis of rotation

Question # 3

Angular velocity is a:

Question # 4

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

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

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

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

Question # 8

Centripetal acceleration is also called ________ acceleration

Question # 9

A body can have constant velocity when it follows:

Question # 10

One radian is:

Question # 11

Angular momentum is a:

Question # 12

One radian is equal to:

Question # 13

Circular motion is an example of motion in:

Question # 14

Moment of inertia depends upon:

Question # 15

When angular acceleration is positive, the body rotates:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 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
2 A point on the rim of a wheel moves 0.2 m where the wheel turns through an angle is 14.3 degrees. The radius of the wheel is:
A. 0.05 m
B. 0.08 m
C. 0.8 m
D. 0.008 m
3 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
A. 980 N
B. 580 N
C. 1380 N
D. Zero
4 The center of mass of a sphere lies at:
A. The axis of the sphere
B. Circumference of sphere
C. Center of the sphere
D. None of them
5 Centripetal acceleration is also called ________ acceleration
A. Tangential
B. Radial
C. Angular
D. None of these
6 The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to:
A. 980 N
B. 580 N
C. 1380 N
D. Zero
7 The number of "Earth stations" which transmit signals to satellites and receive signals from them are:
A. 3
B. 24
C. 126
D. 200
8 The number of countries who manage the largest satellite system is:
A. 3
B. 24
C. 126
D. 200
9 A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:
A. 9.42 rad/sec
B. 2.6 rev/sec
C. 1.5 rev/sec
D. Both A and C
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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