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

When angular acceleration is positive, the body rotates:

Question # 3

One radian is

Question # 4

______ plays the same role during angular motion as played by the mass in linear motion

Question # 5

When angular acceleration is positive, the body rotates:

Question # 6

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 # 7

Centripetal acceleration is also called ______ acceleration

Question # 8

Einstein's theory about gravity if better than Newton's because it gave explanation of:

Question # 9

Direction of motion_______ in circular of motion:

Question # 10

Centripetal force performs:

Question # 11

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

Question # 12

An axis of rotation

Question # 13

Circular motion is an example of motion in:

Question # 14

Which of the following pairs does not have identical dimensions?

Question # 15

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

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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 Which one is related to angular motion:
A. Moment of a force
B. Moment of inertia
C. Moment of momentum
D. None of these
3 When a 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
4 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
5 Centripetal acceleration is also called ________ acceleration
A. Tangential
B. Radial
C. Angular
D. None of these
6 Circular motion is an example of motion in:
A. One dimension
B. Two dimensions
C. Three dimensions
D. None of these
7 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
8 A rotating body tends to be slower, when its angular acceleration is:
A. Positive
B. Negative
C. Zero
D. Infinity
9 Angular momentum is a:
A. vector quantity
B. Imaginary quantity
C. Complex Quantity
D. Scalar Quantity
10 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

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