ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 5 Circular Motion

Try The MCQ's Test For ECAT Physics Chapter 5 Circular Motion

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ECAT Physics Chapter 5 Circular Motion

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Question # 1

A body can have constant velocity when it follows:

Question # 2

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

Question # 3

Angular momentum is a:

Question # 4

Direction of motion _________ in circular motion

Question # 5

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

Question # 6

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

Question # 7

One radian is

Question # 8

One radian is:

Question # 9

Which of the following pairs does not have identical dimensions?

Question # 10

One radian is:

Question # 11

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:

Question # 12

Direction of motion ______ in circular motion:

Question # 13

The center of mass of a sphere lies at:

Question # 14

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 # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
2 Circular motion is an example of motion in:
A. One dimension
B. Two dimensions
C. Three dimensions
D. None of these
3 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
4 Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.
A. Greater than
B. smaller than
C. Equal to
D. None of these
5 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
6 Direction of angular momentum is determined by:
A. Right hand rule
B. Head to tail rule
C. Left hand rule
D. None of them
7 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
8 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:
A. 22/7
B. 7
C. 14
D. 21
9 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
10 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°

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