16: Elastic and Inelastic Collisions
Topics covered: Elastic and Inelastic Collisions
Instructor/speaker: Prof. Walter Lewin
Date recorded: October 18, 1999
credit
Walter Lewin and MIT OpenCourseWare
Topics covered: Elastic and Inelastic Collisions
Instructor/speaker: Prof. Walter Lewin
Date recorded: October 18, 1999
Walter Lewin and MIT OpenCourseWare
Demo PowerMore content on OCWhttp://ocw.mit.edu/OcwWeb/Physics/8-01Physics-IFall1999/CourseHome/
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Introduction video for Physics III: Vibrations and Waves In addition to the traditional topics of mechanical vibrations and waves, coupled oscillators, and electro-magnetic radiation, students will also learn about musical instruments, red sunsets, glories, coronae, ...
Topics covered: Concepts covered in this lecture begin with the restoring force of a spring (Hooke's Law) which leads to an equation of motion that is characteristic of a simple harmonic oscillator (SHO). Using the small angle approximation, a ...
Topics covered: The concepts introduced are: work, conservative forces, potential energy, kinetic energy, mechanical energy, and Newton's law of universal gravitation. Instructor/speaker: Prof. Walter Lewin Date recorded: October 4, 1999
Topics covered: This lecture covers resistive forces such as air drag. It includes the viscous (linear in velocity) and pressure (quadratic in velocity) terms. Quantitative demonstrations with balloons and with ball bearings dropped in syrup are shown. Instructor/speaker: ...
Topics covered: The conservation of mechanical energy can be used to derive the equation of motion for simple harmonic oscillators (SHO). Instructor/speaker: Prof. Walter Lewin Date recorded: October 8, 1999
Topics covered: Bound and unbound orbits; escape velocity. Various sources of energy, energy storage, energy conversion, and the world's energy consumption are discussed. Instructor/speaker: Prof. Walter Lewin Date recorded: October 13, 1999
Topics covered: Momentum and its conservation during collisions is introduced. Kinetic energy can decrease or increase during collisions. When kinetic energy is conserved, we call it an elastic collision. Instructor/speaker: Prof. Walter Lewin Date recorded: October 15, 1999
Topics covered: The momentum of individual objects can change in a variety of ways. Demonstration of impulse and impact time courtesy of Dr. Peter Dourmashkin, MIT. Instructor/speaker: Prof. Walter Lewin Date recorded: October 20, 1999
Topics covered: This lecture reviews selected concepts previously covered in lectures 6 through 15. Instructor/speaker: Prof. Walter Lewin Date recorded: October 22, 1999
Topics covered: Rotating Rigid Bodies, Moments of Inertia, Parallel Axis and Perpendicular Axis Theorem. The moment of inertia for a rigid body around an axis of rotation is introduced, and related to its rotational kinetic energy. Flywheels can be ...
Topics covered: Angular momentum (a vector) is introduced. The rate of change of angular momentum is related to the torque (also a vector). In the absence of an external torque, angular momentum is conserved. Spin angular momentum (of planets, stars, neutron stars) is also ...
Topics covered: In the absence of a net external torque on an object, angular momentum is conserved. When an object oscillates about an axis of rotation, there is a variable restoring torque acting on the object. Instructor/speaker: Prof. Walter Lewin Date recorded: ...
Topics covered: Kepler's Laws, Elliptical Orbits, Change of Orbits, and the famous passing of a Ham Sandwich. Kepler's three Laws summarize the motion of the planets in our solar system. Following Newton's law of universal gravitation, the ...
Topics covered: Doppler Effect, Binary Stars, Neutron Stars and Black Holes. Doppler shift is introduced with sound waves, then extended to electromagnetic waves (radiation). The Doppler shift of stellar spectral lines and/or pulsar frequencies ...
Topics covered: Rolling Motion, Gyroscopes, Very Non-intuitive. Instructor/speaker: Prof. Walter Lewin Date recorded: November 8, 1999
Topics covered: Static Equilibrium, Stability, Rope Walker. Static equilibrium is only achieved when the net external force AND net external torque on an object are both zero. Instructor/speaker: Prof. Walter Lewin Date recorded: November 10, 1999
Topics covered: Elasticity and Young's Modulus. The fractional length deformation of a material (the strain) depends on the force per unit area (the stress). The stress vs. strain dependence is described conceptually, then explored empirically. Instructor/speaker: Prof. ...
Topics covered: Concepts covered in this lecture include gases and incompressible liquids, Pascal's Principle, hydrostatic and barometric pressure. Instructor/speaker: Prof. Walter Lewin Date recorded: November 15, 1999
On May 15, 2013, 3dim earned the grand prize at this year’s MIT $100K Entrepreneurship Competition.
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A small amount of water is placed inside an airtight copper tube, with the end sealed by a rubber stopper. The tube is heated using a blowtorch, causing the water inside to boil. As the water changes from a liquid to a gas the pressure inside the tube increases. Eventually the pressure blows ...
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