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

Which of the following pairs does not have identical dimensions?

Question # 2

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

Question # 3

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 # 4

Centripetal acceleration is also called ______ acceleration

Question # 5

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

Question # 6

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:

Question # 7

Direction of motion _________ in circular motion

Question # 8

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

Question # 9

One radian is:

Question # 10

Direction of motion ______ in circular motion:

Question # 11

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

Question # 12

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

Question # 13

When angular acceleration is positive, the body rotates:

Question # 14

The useful unit of the angular displacement in SI unit is:

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 The angular speed of a particle moving along a circular path is 5 Pie rad sec-1, Its period of motion is:
A. 2.5 sec
B. 0.06 sec
C. 15.7 sec
D. 0.4 sec
2 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
3 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
4 One radian is
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these
5 Direction of motion _________ in circular motion
A. Changes off and on
B. Changes continously
C. Does not change
D. None of them
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 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 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
9 If a gymnast is 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. Remains constant
D. None of these
10 Centripetal force performs:
A. Maximum work
B. Negative work
C. Positive work
D. None of these

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