Physics ECAT Pre Engineering Chapter 5 Circular Motion Online Test With Answers

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Physics ECAT Pre Engineering Chapter 5 Circular Motion Online Test

Sr. # Questions Answers Choice
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: 0.05 m 0.08 m 0.8 m 0.008 m
2 Einstein's theory about gravity if better than Newton's because it gave explanation of: Inverse square law Bending of light Both A and B None of above
3 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of: KHz MHz GHz BHz
4 The number of "Earth stations" which transmit signals to satellites and receive signals from them are: 3 24 126 200
5 The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec-2comes out to: 980 N 580 N 1380 N Zero
6 If a gymnast is sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will: Increase Decrease Remains constant None of these
7 Conventional the angular Velocity is Directed at an angle of: <font face="arial, sans, sans-serif"><span style="font-size: 13.3333px;">90</span></font><span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">° to the axis of rotation</span> 30<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">° to the axis of rotation</span> 0<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">° to the axis of rotation</span> None of above
8 When a body moves along a circular path with constant speed, it has an acceleration, which is always directed Along the tangent Towards the centre Away from the centre None of them
9 One radian is Greater than one degree Less than one degree Equal to one degree None of these
10 Centripetal acceleration is also called ________ acceleration Tangential Radial Angular None of these
11 Direction of motion _______ in circular motion Changes off and on Changes continuously Does not change None of them
12 An axis of rotation Is a straight line Is normal to the plane of rotation Passes through pivot point O All of them
13 Conventionally the angular velocity is directed at an angle of 90° to the axis of rotation 30° to the axis of rotation 0° to the axis of rotation None of the above
14 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 0.05 m 0.08 cm 0.8 m 0.008 m
15 INTELSAT operates at frequencies 4, 6, 11, 14 having unit of KHz MHz GHz BHz
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