ECAT Pre Computer Science Chapter 5 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 5 Circular Motion

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

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ECAT Physics Chapter 5 Circular Motion

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Question # 1

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

Question # 2

One radian is:

Question # 3

Centripetal acceleration is also called ______ acceleration:

Question # 4

INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:

Question # 5

One radian is equal to:

Question # 6

Direction of angular momentum is determined by:

Question # 7

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

Question # 8

The useful unit of angular replacement in SI unit is:

Question # 9

Which of the following pairs does not have identical dimensions?

Question # 10

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 # 11

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 # 12

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

Question # 13

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 # 14

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 # 15

Direction of motion ______ in circular motion:

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ECAT Physics Chapter 5 Important MCQ's

Sr.# Question Answer
1 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
2 Angular velocity is a:
A. Scalar quantity
B. Vector quantity
C. Complex quantity
D. None of these
3 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
4 One radian is equal to:
A. 30.3°
B. 45.3°
C. 50.3°
D. 57.3°
5 The number of countries who manage the largest satellite system is:
A. 3
B. 24
C. 126
D. 200
6 One radian is:
A. Greater than one degree
B. Less than one degree
C. Equal to one degree
D. None of them
7 Centripetal acceleration is also called ______ acceleration:
A. Tangential
B. Radial
C. Angular
D. None of them
8 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
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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