Physics - Video
by Ramamurti Shankar
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(PHYS 200) This course provides a thorough introduction to the principles and methods of physics for students who have good preparation in physics and mathematics. Emphasis is placed on problem solving and quantitative reasoning. This course covers Newtonian mechanics, special relativity, gravitation, thermodynamics, and waves. This class was recorded in Fall 2006.
|1||Video01 - Course Introduction and Newtonian Mechanics||Professor Shankar introduces the course and answers student questions about the material and the requirements. He gives an overview of Newtonian mechanics and explains its two components: kinematics and dynamics. He then reviews basic concepts in ...||10/7/2009||Free||View in iTunes|
|2||Video02 - Vectors in Multiple Dimensions||In this lecture, Professor Shankar discusses motion in more than one dimension. Vectors are introduced and discussed in multiple dimensions. Vector magnitude and direction are also explained. Null vectors, minus vectors, unit and velocity vectors are ...||10/7/2009||Free||View in iTunes|
|3||Video03 - Newton's Laws of Motion||This lecture introduces Newton's Laws of Motion. The First Law states that "An object at rest stays at rest, and an object in motion remains in motion with the same speed and in the same direction, unless acted upon by an unbalanced force." This is ...||10/7/2009||Free||View in iTunes|
|4||Video04 - Newton's Laws (cont'd) and Inclined Planes||The lecture begins with the application of Newton's three laws, with the warning that they are not valid for objects that move at speeds comparable to the speed of light or objects that are incredibly small and of the atomic scale. Friction and static ...||10/7/2009||Free||View in iTunes|
|5||Video05 - Work-Energy Theorem and Law of Conservation of Energy||The lecture begins with a review of the loop-the-loop problem. Professor Shankar then reviews basic terminology in relation to work, kinetic energy and potential energy. He then goes on to define the Work Energy Theorem. Finally, the Law of ...||10/7/2009||Free||View in iTunes|
|6||Video06 - Law of Conservation of Energy in Higher Dimensions||The discussion on the Law of Conservation of Energy continues but is applied in higher dimensions. The notion of a function with two variables is reviewed. Conservative forces are explained and students are taught how to recognize and manufacture them.||10/7/2009||Free||View in iTunes|
|7||Video07 - Kepler's Laws||The focus of the lecture is problems of gravitational interaction. The three laws of Kepler are stated and explained. Planetary motion is discussed in general and how this motion applies to the planets moving around the Sun in particular.||10/7/2009||Free||View in iTunes|
|8||Video08 - Dynamics of Multiple-Body System and Law of Conservation of Momentum||The dynamics of a many-body system is examined. Through a variety of examples, the professor demonstrates how to locate the center of mass and how to evaluate it for a number of objects. Finally, the Law of Conservation of Momentum is introduced and ...||10/7/2009||Free||View in iTunes|
|9||Video09 - Rotations: Part I; Dynamics of Rigid Bodies||Part I of Rotations. The lecture begins with examining rotation of rigid bodies in two dimensions. The concepts of "rotation" and "translation" are explained. The use of radians is introduced. Angular velocity, angular momentum, angular acceleration...||10/7/2009||Free||View in iTunes|
|10||Video10 - Rotations: Part II; Parallel Axis Theorem||Part II of Rotations. The lecture begins with an explanation of the Parallel Axis Theorem and how it is applied in problems concerning rotation of rigid bodies. The moment of inertia of a disk is discussed as a demonstration of the theorem. Angular ...||10/7/2009||Free||View in iTunes|
|11||Video11 - Torque||This lecture is a continuation of an analogue to Newton's law: _= l_. While previous problems examined situations in which _ is not zero, this time the focus is on extreme cases in which there is no torque at all. If there is no torque, _ is zero and ...||10/7/2009||Free||View in iTunes|
|12||Video12 - Introduction to Relativity||This is the first of a series of lectures on relativity. The lecture begins with a historical overview and goes into problems that aim to describe a single event as seen by two independent observers. Maxwell's theory, as well as the Galilean and ...||10/7/2009||Free||View in iTunes|
|13||Video13 - Lorentz Transformation||This lecture offers detailed analysis of the Lorentz transformations which relate the coordinates of an event in two frames in relative motion. It is shown how length, time and simultaneity are relative.||10/7/2009||Free||View in iTunes|
|14||Video14 - Introduction to the Four-Vector||The four-vector is introduced that unifies space-time coordinates x, y, z and t into a single entity whose components get mixed up under Lorentz transformations. The length of this four-vector, called the space-time interval, is shown to be invariant ...||10/7/2009||Free||View in iTunes|
|15||Video15 - Four-Vector in Relativity||The discussion of four-vector in relativity continues but this time the focus is on the energy-momentum of a particle. The invariance of the energy-momentum four-vector is due to the fact that rest mass of a particle is invariant under coordinate ...||10/7/2009||Free||View in iTunes|
|16||Video16 - The Taylor Series and Other Mathematical Concepts||The lecture covers a number of mathematical concepts. The Taylor series is introduced and its properties discussed, supplemented by various examples. Complex conjugates are explained in detail. Writing complex numbers in polar forms is also demonstrated.||10/7/2009||Free||View in iTunes|
|17||Video17 - Simple Harmonic Motion||The focus of the lecture is simple harmonic motion. Professor Shankar gives several examples of physical systems, such as a mass M attached to a spring, and explains what happens when such systems are disturbed. Amplitude, frequency and period of ...||10/7/2009||Free||View in iTunes|
|18||Video18 - Simple Harmonic Motion (con't) and Introduction to Waves||This lecture continues the topic of harmonic motions. Problems are introduced and solved to explore various aspects of oscillation. The second half of the lecture is an introduction to the nature and behavior of waves. Both longitudinal and transverse ...||10/7/2009||Free||View in iTunes|
|19||Video19 - Waves||Waves are discussed in further detail. Basic properties of the waves such as velocity, energy, intensity, and frequency are discussed through a variety of examples. The second half of the lecture deals specifically with superposition of waves...||10/7/2009||Free||View in iTunes|
|20||Video20 - Fluid Dynamics and Statics and Bernoulli's Equation||The focus of the lecture is on fluid dynamics and statics. Different properties are discussed, such as density and pressure. The Archimedes' Principle is introduced and demonstrated through a number of problems. The final topic of the lecture is...||10/7/2009||Free||View in iTunes|
|21||Video21 - Thermodynamics||This is the first of a series of lectures on thermodynamics. The discussion begins with understanding "temperature." Zeroth's law is introduced and explained. Concepts such as "absolute zero" and "triple point of water" are defined. Measuring...||10/7/2009||Free||View in iTunes|
|22||Video22 - The Boltzmann Constant and First Law of Thermodynamics||This lecture continues the topic of thermodynamics, exploring in greater detail what heat is, and how it is generated and measured. The Boltzmann Constant is introduced. The microscopic meaning of temperature is explained. The First Law of ...||10/7/2009||Free||View in iTunes|
|23||Video23 - The Second Law of Thermodynamics and Carnot's Engine||Why does a dropped egg that spatters on the floor not rise back to you hands even though no laws prohibit it? The answer to such irreversibility resides the Second Law of Thermodynamics which explained in this and the next lecture. The Carnot heat ...||10/7/2009||Free||View in iTunes|
|24||Video24 - The Second Law of Thermodynamics (con't) and Entropy||The focus of the lecture is the concept of entropy. Specific examples are given to calculate the entropy change for a number of different processes. Boltzmann's microscopic formula for entropy is introduced and used to explain irreversibility.||10/7/2009||Free||View in iTunes|
A Great Resource
I'm currently in an undergrad physics class, and these lectures are excellent for learning the background of the topics. Prof Shankar is a really good teacher; I don't know what I would have done in physics without his simplified, gradual explanation of these sometimes complex subjects.
He tends to focus more on the derivation of the formulas and the reasoning behind the laws, which might frustrate someone looking to take a more applied approach, but I suppose he figures that anyone can apply the formulas, the hard part is figuring out where they came from.
All in all, I would definitely recommend this to any student who wants to actually understand physics.
Too often the focus is on calculations instead of understanding the physics. While he does go through the calculus of calculations (homage to his wit), he emphasizes the science underlying the calculations.
So so so helpful!! My uni has pod casts too but this guy is great. He doesnt just expect everyone to know what's going on. Also I love that he writes with chalk!