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

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 # 2

One radian is equal to:

Question # 3

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

Question # 4

The useful unit of the angular displacement in SI unit is:

Question # 5

Conventional the angular Velocity is Directed at an angle of:

Question # 6

Which one is related to angular motion:

Question # 7

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 # 8

Direction of motion ______ in circular motion:

Question # 9

The number of "Earth Stations" which transmit signals to satellites and receive signals fro them are

Question # 10

If a gymnast is sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will:

Question # 11

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 # 12

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 # 13

In case of planets, the necessary acceleration is provided by:

Question # 14

Direction of motion _______ in circular motion

Question # 15

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

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 Which of the following pairs does not have identical dimensions?
A. Torque and energy
B. Energy and work
C. Momentum and impulse
D. Mass and moment of inertia
2 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
A. 980 N
B. 580 N
C. 1380 N
D. Zero
3 If a gymnast is sitting on a rotating stool with his arms outstretched, brings his arms towards the chest, then its angular velocity will:
A. Increase
B. Decrease
C. Remains constant
D. None of these
4 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to degree
D. none of these
5 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
6 Direction of angular momentum is determined by:
A. Right hand rule
B. Head to tail rule
C. Left hand rule
D. None of them
7 When a body moves with a constant speed in a circle:
A. No work is done on it
B. No acceleration is produced in the body
C. Velocity remains constant
D. None of these
8 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
9 ______ plays the same role during angular motion as played by the mass in linear motion
A. Torque
B. Angular Momentum
C. Moment of a force
D. Moment of inertia
10 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of these

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