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A simple conservation of momentum problem involving an ice skater and a ball. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. (06:00)
Found by teresahopson in Angular Momentum
August 14, 2009 at 12:33 PM
Ages: 14 - 18
License: CC by-nc-nd
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This NASA video segment explores how Newton's Laws of Motion apply to the lift of an airplane. An instructor at NASA's National Test Pilot School teaches that for an airplane to overcome the downward force of its weight, it must change the momentum of the air molecules colliding with the wings. This is accomplished by changing the air's vertical velocity through increased propeller speed, sharpened angles of attack, widened wings or curved wings. Onscreen formulas and calculations represent the forces mathematically. For example, in one part, the instructor derives a formula from Newton's second law to calculate the minimum flying speed of an aircraft. The instructor then flies the aircraft to test his calculations. Run time 14:15.
Found by Larry Sanger in Application of Newton's Laws
June 30, 2009 at 12:00 PM
Ages: 12 - 18
License: CC by
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(When you click on the link, please go to Video #44 for this particular video.) The new meaning of space and time make it necessary to formulate a new mechanics. Starting from the conservation of momentum, it turns out among other things that E = MC 2. (29:02)
Found by laneyk in Relativity
March 22, 2010 at 10:47 PM
Ages: 14 - 18
License: Undetermined
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Angular momentum is constant when there is no net torque. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. Run time (10:12)
Found by teresahopson in Angular Momentum
August 14, 2009 at 04:59 PM
Ages: 15 - 18
License: CC by-nc-nd
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A rather dizzy Professor Bowley sacrifices his well-being in the name of science. Explains and shows momentum. Some of this video is for higher level students, but there are some experiments that are done that could be interesting to younger students. Video is of good quality and would be good for high school students. Run time 07:07.
Found by Barb in Angular Momentum
August 13, 2009 at 04:49 AM
Ages: 12 - 18
License: Undetermined
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Views: 3025 |
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This video takes you to a speedway in New York. It explains the weight of the car and the impact the car creates during a wreck. The video shows you the wall around the track, made of foam, that increases the impact time during a wreck. The narrator also mentions mass, velocity, impulse, and change in momentum. Run time 04:20.
Found by begamatt in Momentum
August 8, 2010 at 11:33 AM
Ages: 12 - 18
License: Undetermined
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Angular Momentum
From learner.org, produced by California Institute of Technology
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An old momentum with a new twist. Kepler's second law of planetary motion, which is rooted here in a much deeper principle, imagined a line from the sun to a planet that sweeps out equal areas in equal times. Angular momentum is a twist on momentum -- the cross product of the radius vector and momentum. A force with twist is torque. When no torque acts on a system, the angular momentum of the system is conserved.
Found by laneyk in Angular Momentum
March 22, 2010 at 09:11 PM
Ages: 14 - 18
License: Undetermined
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Views: 2790 |
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What momentum is and a simple problem involving momentum. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. (09:18)
Found by teresahopson in Momentum
August 14, 2009 at 12:31 PM
Ages: 14 - 18
License: CC by-nc-nd
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An example of conservation of momentum in two dimensions is finished in this segment. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. (09:32)
Found by teresahopson in Momentum
August 14, 2009 at 12:36 PM
Ages: 14 - 18
License: CC by-nc-nd
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Views: 2088 |
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An example of conservation of momentum in two dimensions. This video, which is suitable for high school students, starts with a black screen because the instructor, in his conversational tone, uses it as a 'chalkboard.' Instructor uses different colors for clarification. Run time 10:35.
Found by teresahopson in Momentum
August 14, 2009 at 12:34 PM
Ages: 14 - 18
License: Undetermined
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Stephen Gioia visits a race track to take a look at momentum and impulse. He talks to drivers and checks out the safety features built into the wall of the track, and the cars. This video will help you understand how the duration (time) of a collision can reduce the impulse of a crash (04:20).
Found by tyler.arnold in Momentum
October 2, 2012 at 06:41 PM
Ages: 15 - 18
License: Public Domain
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If The Mechanical Universe is a perpetual clock, what keeps it ticking away till the end of time? Taking a cue from Descartes, momentum -- the product of mass and velocity -- is always conserved. Newton's laws embody the concept of conservation and momentum. This law provides a powerful principle for analyzing collisions, even at the local pool hall.
Found by laneyk in Momentum
March 22, 2010 at 09:01 PM
Ages: 14 - 18
License: Undetermined
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In this interactive activity adapted from Wake Forest University, learn about the principle of conservation of momentum. Two carts colliding on an air track demonstrate how momentum is conserved in a closed system. Observe six different scenarios—a moving cart colliding with a stationary cart of lesser, equal, or greater mass in both elastic and inelastic collisions—to see how the motion of the carts changes after each collision.
Found by Mrs Jefferies in Momentum
May 14, 2012 at 10:23 PM
Ages: 10 - 18
License: Public Domain
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Calculus based review of conservation of momentum, the momentum version of Newton’s second law, the Impulse-Momentum Theorem, impulse approximation, impact force, elastic, inelastic and perfectly inelastic collisions, position, velocity and acceleration of the center of mass of a system of particles, center of mass of a rigid object with shape, and volumetric, surface and linear mass densities.
For the calculus based AP Physics C mechanics exam.
Want momentum-impulse-review.html">Lecture Notes?
Content Times:
0:11 Momentum
0:38 Momentum and Newton’s Second Law
1:44 Conservation of Momentum
2:35 Impulse- Momentum Theorem
4:23 Impulse Approximation and Force of Impact
5:32 Elastic, Inelastic, and Perfectly Inelastic Collisions
6:39 Position of the Center of Mass of a System of Particles
7:19 Velocity of the Center of Mass of a System of Particles
7:54 Acceleration of the Center of Mass of a System of Particles
8:31 Center of Mass of a Rigid Object with Shape
10:09 Volumetric, Surface, and Linear Mass Density
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AP Physics C Review Website
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Previous Video: AP Physics C: Integrals in Kinematics Review (Mechanics)
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Thank you to Aarti Sangwan, Jordan Bueno, and Michael Nelson for being my Quality Control team for this video.
Found by Flipping Physics in AP Physics C: Mechanics
April 2, 2017 at 03:45 PM
Ages: 15 - 18
License: Proprietary
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A 25 kg child is sitting on the edge of a #merry-go-round. The merry-go-round has a mass of 255 kg and is rotating at 2.0 radians per second. The child crawls to the middle of the merry-go-round. What is the final angular speed of the merry-go-round? You may make the following estimations: The child is a point particle; the merry-go-round is a solid disk and has an axle with negligible friction. #AngularMomentumConservation Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:07 Translating the problem from words to physics.
1:32 Why the angular momentum of the system is conserved.
3:21 Using the equations for angular momentum and rotational inertia.
4:22 Substituting in equations and variables to solve the problem.
6:06 Understanding why the angular velocity of the system increased.
7:44 Finding the change in kinetic energy of the system.
8:55 Understanding why the change in kinetic energy of the system is positive.
Next Video: Which Direction will the Wheel Accelerate?
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Previous Video: momentum-conservation.html">Wheel Conservation of Angular Momentum Demonstration and Solution
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Thank you to Scott Carter, Cameron Vongsawan, and Christopher Becke for being my Quality Control Team for this video.
Found by Flipping Physics in Rotational Motion
April 14, 2019 at 01:51 PM
Ages: 12 - 18
License: Proprietary
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