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

00:00
Question # 1

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 # 2

Conventional the angular Velocity is Directed at an angle of:

Question # 3

Centripetal acceleration is also called ______ acceleration:

Question # 4

Centripetal acceleration is also called ______ acceleration

Question # 5

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

Question # 6

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

Question # 7

A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:

Question # 8

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 # 9

A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:

Question # 10

The useful unit of angular replacement in SI unit is:

Question # 11

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 9.8 m sec-2comes out to be

Question # 12

Satellites are held in orbits around Earth by its:

Question # 13

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

Question # 14

When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:

Question # 15

Direction of motion _________ in circular motion

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
2 The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are
A. 3
B. 24
C. 126
D. 200
3 Direction of motion ______ in circular motion:
A. Changes off and on
B. Changes continuously
C. Does not change
D. None of them
4 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
5 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:
A. 1 m
B. 5 m
C. 10 m
D. 15 m
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:
A. Radius of the circle
B. Twice the radius
C. Thrice the radius
D. None of these
7 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
8 A 1000 Kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be:
A. 8.1 X 107N
B. 625 N
C. 6250 N
D. None of these
9 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
10 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:
A. 0.05 m
B. 0.08 m
C. 0.8 m
D. 0.008 m

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  • Ahmed Qureshi

    Ahmed Qureshi

    14 Feb 2018

    wt

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