ECAT Pre Engineering Physics Chapter 5 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 5 Circular Motion

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

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Physics ECAT Pre Engineering Chapter 5 Circular Motion

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Question # 1

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

Question # 2

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to:

Question # 3

Formula for calculating moment of inertia of the bodies of one pair is same. Tick the answer.

Question # 4

The rear wheels of an automobile are rotating with an angular velocity of 14 rev/sec which is reduced to 38 rad/sec in 5 second when brakes are applied. Its angular acceleration is:

Question # 5

The instantaneous acceleration of a body moving with constant speed in a circle:

Question # 6

Satellites are held in orbits around Earth by its:

Question # 7

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

Question # 8

The rear wheels of an automobile are rev/sec which is reduced to 38 rad/sec in 5 seconds when brakes are applied. Its angular acceleration is:

Question # 9

One radian is equal to:

Question # 10

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 # 11

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

Question # 12

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 # 13

One radian is:

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

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 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:
A. Radius of the circle
B. Twice the radius
C. Thrice the radius
D. None of these
2 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
3 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
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 The number of countries who manage the largest satellite system is:
A. 3
B. 24
C. 126
D. 200
6 Direction of motion_______ in circular of motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
7 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
8 A body can have constant velocity when it follows:
A. A circular path
B. A rectilinear path
C. Trajectory of a projectile
D. None of these
9 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these
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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