Angular Momentum Trivia Quiz
Angular momentum is a pseudovector that represents the product of a body's rotational inertia and rotational velocity about a particular axis. Angular momentum depends on where the origin is chosen since the particle's position is measured from it. The total sum of the angular momentum of any composite system is the pseudovector sum of the angular momenta of its constituent parts. Try this quiz to test your knowledge on this topic.
- 1.
What is the common symbol for Angular momentum?
- A.
L
- B.
Q
- C.
A
- D.
M
Correct Answer
A. LExplanation
The common symbol for angular momentum is "L".Rate this question:
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- 2.
What is the dimension of Angular momentum?
- A.
ML²/T
- B.
ML/T
- C.
MLT²
- D.
ML²T²
Correct Answer
A. ML²/TExplanation
Angular momentum is a physical quantity that describes the rotational motion of an object. It is defined as the product of the moment of inertia (mass times the square of the distance from the axis of rotation) and the angular velocity (rate of change of angle with respect to time). Therefore, the dimension of angular momentum is given by ML²/T, where M represents mass, L represents length, and T represents time.Rate this question:
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- 3.
What is the relationship between orbital angular momentum and orbital angular velocity?
- A.
Directly Proportional
- B.
Inversely proportional
- C.
Jointly proportional
- D.
Perpendicular to each other
Correct Answer
A. Directly ProportionalExplanation
The relationship between orbital angular momentum and orbital angular velocity is directly proportional. This means that as the orbital angular velocity increases, the orbital angular momentum also increases, and vice versa. The two quantities are directly related and change in the same direction.Rate this question:
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- 4.
Which of these denotes orbital angular velocity?
- A.
μ
- B.
Ω
- C.
ω
- D.
Ï€
Correct Answer
C. ωExplanation
The symbol ω is commonly used to represent orbital angular velocity. It is a measure of the rate at which an object rotates or revolves around a central point or axis. This symbol is frequently used in physics and engineering to represent angular velocity in various contexts, including orbital motion. Therefore, ω is the correct symbol that denotes orbital angular velocity.Rate this question:
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- 5.
How many types of angular momentum are there?
- A.
4
- B.
2
- C.
3
- D.
5
Correct Answer
B. 2Explanation
There are two types of angular momentum. One is orbital angular momentum, which is the angular momentum associated with the motion of an object around an axis. The other is spin angular momentum, which is the angular momentum associated with the intrinsic spin of a particle.Rate this question:
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- 6.
Which of these is defined as the angular momentum about its centre of mass coordinate?
- A.
Spin angular momentum
- B.
Orbital angular momentum
- C.
Radial angular momentum
- D.
Jouste angular momentum
Correct Answer
A. Spin angular momentumExplanation
The spin angular momentum is defined as the angular momentum about its center of mass coordinate. It is a property of elementary particles, such as electrons, and is associated with their intrinsic angular momentum. This type of angular momentum is independent of any external motion or orbital motion of the particle. It is a fundamental concept in quantum mechanics and plays a crucial role in understanding the behavior of subatomic particles.Rate this question:
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- 7.
Which of these is defined as the angular momentum of the centre of mass about the origin?
- A.
Spin angular momentum
- B.
Orbital angular momentum
- C.
Radial angular momentum
- D.
Jouste angular momentum
Correct Answer
B. Orbital angular momentumExplanation
The orbital angular momentum is defined as the angular momentum of the center of mass about the origin. It describes the rotational motion of an object or system around a fixed point or axis. This type of angular momentum is associated with the movement of an object in a circular or elliptical path. It is different from spin angular momentum, which is associated with the intrinsic angular momentum of particles, and radial angular momentum, which does not have a clear definition in classical mechanics. Jouste angular momentum is not a recognized term in physics.Rate this question:
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- 8.
What is the total angular momentum of an object?
- A.
Sum of Spin and Jouste momenta
- B.
Sum of orbital and radial momenta
- C.
Sum of radial and Jouste momenta
- D.
Sum of Spin and orbital momenta
Correct Answer
D. Sum of Spin and orbital momentaExplanation
The total angular momentum of an object is the sum of its spin and orbital momenta. Spin refers to the intrinsic angular momentum of the object, while orbital momentum is associated with the object's motion around a central point. Therefore, the correct answer is the sum of spin and orbital momenta.Rate this question:
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- 9.
Which of these denotes spin angular velocity?Ω^
- A.
Π
- B.
μ
- C.
Ω
- D.
¢
Correct Answer
C. ΩExplanation
The symbol Ω represents spin angular velocity.Rate this question:
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- 10.
Which of these is defined as the rate of change of angular momentum, analogous to force?
- A.
Angular velocity
- B.
Radial angular momentum
- C.
Torque
- D.
Spin angular momentum
Correct Answer
C. TorqueExplanation
Torque is defined as the rate of change of angular momentum, analogous to force. Torque is a measure of how much a force acting on an object causes it to rotate. It is the product of the force applied and the distance from the axis of rotation. When a torque is applied to an object, it causes a change in its angular momentum, just like how a force causes a change in linear momentum. Therefore, torque is the correct answer in this context.Rate this question:
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Current Version
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Mar 20, 2023Quiz Edited by
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Apr 16, 2019Quiz Created by
Gregorynaomi
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