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 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 # 2

Moment of inertia depends upon:

Question # 3

A car is turning around a corner at 10 m/sec as it travels along an arc of circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:

Question # 4

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 # 5

Which of the following pairs does not have identical dimensions?

Question # 6

Angular velocity is a:

Question # 7

Conventionally the angular velocity is directed to an angle of:

Question # 8

When angular acceleration is positive, the body rotates:

Question # 9

Angular velocity is a:

Question # 10

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

Question # 11

Which one is related to angular motion:

Question # 12

Direction of motion _________ in circular motion

Question # 13

Centripetal acceleration is also called ________ acceleration

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 is tied to the end of a 20 cm along string is whirled in a horizontal circle.
if centripetal acceleration is 9.8 m/sec2, then its angular velocity in rad/sec is:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of them
2 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:
A. 10 m
B. 12 m
C. 13 m
D. 15 m
3 A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed V of the car is:
A. 38 m/sec
B. 3.8 m/sec
C. 0.6 m/sec
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 When angular acceleration is positive, the body rotates:
A. Slower
B. Slowest
C. Faster
D. None of these
6 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
7 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
8 In rotational motion, analogue of force F us called:
A. Couple
B. Torque
C. Mass
D. Moment of intertia
9 An axis of rotation
A. Is a straight line
B. Is normal to the plane of rotation
C. Passes through pivot point O
D. All of them
10 Radian is defined as the angle subtended at the center of a circle by an arc of:
A. Length equal to its diameter
B. Length equal to its radius
C. Any length
D. None of these

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