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

The useful unit of angular replacement in SI unit is:

Question # 2

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

Question # 3

Direction of motion ______ in circular motion:

Question # 4

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

Question # 5

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 # 6

One radian is equal to:

Question # 7

Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.

Question # 8

Conventionally the angular velocity is directed to an angle of:

Question # 9

Moment of linear momentum is called.

Question # 10

Moment of inertia depends upon:

Question # 11

Angular velocity is a:

Question # 12

Direction of motion_______ in circular of motion:

Question # 13

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

Question # 14

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

Question # 15

Centripetal force performs:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Einstein's theory about gravity if better than Newton's because it gave explanation of:
A. Inverse square law
B. Bending of light
C. Both A and B
D. None of above
2 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
3 The useful unit of the angular displacement in SI unit is:
A. Degree
B. Revolution
C. Radian
D. Metre
4 Conventionally the angular velocity is directed at an angle of
A. 90° to the axis of rotation
B. 30° to the axis of rotation
C. 0° to the axis of rotation
D. None of the above
5 Angular momentum is a:
A. vector quantity
B. Imaginary quantity
C. Complex Quantity
D. Scalar Quantity
6 Which one is related to angular motion:
A. Moment of a force
B. Moment of inertia
C. Moment of momentum
D. None of these
7 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
8 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of them
9 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
10 The instantaneous acceleration of a body moving with constant speed in a circle:
A. Remains constant
B. Is called centripetal acceleration
C. Tangential acceleration
D. None of these

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