ECAT Pre General Science Physics Chapter 5 Circular Motion Online Test
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Question # 1
One radian is:
Question # 2
Which one is related to angular motion:
Question # 3
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 # 4
When a body is moves along a circular path with constant speed, it has an acceleration, which is always directed:
Question # 5
The number of countries who manage the largest satellite system is:
Question # 6
Conventional the angular Velocity is Directed at an angle of:
Question # 7
A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:
Question # 8
The instantaneous acceleration of a body moving with constant speed in a circle:
Question # 9
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:
Question # 10
If a gymnast sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will
Question # 11
Centripetal acceleration is also called ________ acceleration
Question # 12
Angular momentum is a:
Question # 13
When angular acceleration is positive, the body rotates:
Question # 14
Conventionally the angular velocity is directed to an angle of:
Question # 15
Centripetal acceleration is also called ______ acceleration
Question # 16
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 # 17
A body can have constant velocity when it follows:
Question # 18
When angular acceleration is positive, the body rotates:
Question # 19
Direction of motion_______ in circular of motion:
Question # 20
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 # 21
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 # 22
When a body moves with a constant speed in a circle:
Question # 23
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 # 24
A rotating wheel accelerates up to the value of 0.75 rev/sec2after 2 seconds of its start. Its angular velocity becomes:
Question # 25
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:
Question # 26
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 # 27
When a body moves with a constant speed in a circle:
Question # 28
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 # 29
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:
Question # 30
When body moves along a circular path with constant speed, it has an acceleration, which is always directed;
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