We know that linear momentum indicates the “ magnitude” of linear motion. We will show that at all points, the angular momentum of the particle is the same. In quantum mechanics, the angular momentum operator is one of several related operators analogous to classical angular momentum. It's the rotational analog of linear momentum. We need you to answer this question! This is an important conclusion that argues the angular momentum is quantized with the square of the magnitude of the angular momentum only capable of assume one of the discrete set of values (Equation \(\ref{6.3.9}\)). 44, No. momentum = mass times velocity and others, are well known. Wiki User August 22, 2012 11:19AM. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share … Just like momentum represents how "hard" something is to stop, angular momentum represents how "hard" it is to stop something from rotating (in classical physics; it gets more complicated in quantum physics). October 21, 1999; ... "Spin is the total angular momentum, or intrinsic angular momentum, of a body. What's the physical 'meaning' of the angular momentum vector? (B) A contour representation of a p orbital. Physically, linear momentum is "stored force" as that momentum is dissipated. Does it have any physical significance, analogous to the spin of a planet? How does this conservation of angular momentum work? It is most closely related to the shell or orbits of the Bohr model. (1973). Hence, angular momentum of a body about a given axis is the product of linear momentum and perpendicular distance of line of action of linear momentum vector from the axis of rotation. In a way this means that linear momentum tells us that how much impulse would be required to stope the linear motion. The second quantum number is the orbital quantum number or the angular momentum quantum number, l. This represents the type of orbital. The angular momentum quantum number can be used to give the shapes of the electronic orbitals. (B) A contour representation of a p orbital. It is most closely related to the shell or orbits of the Bohr model. where \(l\) is an integer. When I was in school, I faced a similar problem of understanding the physical meaning of momentum. Lec 11 Physical Meaning Of Angular Momentum Rotational Motion +1 Physics Bhatia Coaching Centre muktsar Punjab. The second quantum number is the orbital quantum number or the angular momentum quantum number, l. This represents the type of orbital. However, in the case of legged locomotion, where the body interacts with the environment (GRFs), there is no requirement for this relationship to hold. The abstract answer deals with the Noether theorem and … The angular momentum operator plays a central role in the theory of atomic physics and other quantum problems involving rotational symmetry. Angular momentum is a vector quantity (more precisely, a pseudovector) that represents the product of a body's rotational inertia and rotational velocity (in radians/sec) about a particular axis. So since the angular momentum depends on a point of reference it is not a surprise that the angular momentum explicitly depends on the position. The value of n ranges from 1 to the shell containing the outermost electron of that atom. Let's take another look at the figure, and calculate the angular momentum at some arbitrary point, P: The angular momentum of the mass at an arbitrary point P At this point P, the particle is a distance from the origin.