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What is mass and where does it come from? Video explains mass, inertia mass of an object, and what causes mass. There are many things about mass which we don’t know. Mass has two definitions, one is gravity, the more massive an object is the more massive the gravity. The second is how much something doesn’t like to be pushed around. So, the higher the mass the more you have to push it. The video also gives examples to these two definitions. Video is of good quality. Video would be good for middle elementary, middle and high school students. This is an interesting video for any student studying electric charge. (08:38)
Found by Barb in Mass
August 13, 2009 at 05:04 AM
Ages: 10 - 18
License: Undetermined
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Harmonic Motion
From learner.org, produced by California Institute of Technology
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The music and mathematics of nature. The restoring force and inertia of any stable mechanical system cause objects to execute simple harmonic motion, a phenomenon that repeats itself in perfect time. (29:02)
Found by laneyk in Conservation of Energy
March 22, 2010 at 09:03 PM
Ages: 14 - 18
License: Undetermined
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Physics students are experiencing moment of inertia firsthand on the playground. When all the passengers move toward the center of the merry go round they reduce their moment of inertia and their angular velocity increases (05:28).
Found by tyler.arnold in Angular Momentum
September 19, 2012 at 08:43 PM
Ages: 16 - 18
License: Proprietary
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Content Times:
0:11 Circular Motion: Angular Velocity and Angular Accleration
0:37 Circular Motion: Centripetal Acceleration
0:56 Circular Motion: Arc Length, Tangential Velocity and Tangential Acceleration
1:58 Torque
2:24 Net Torque in terms of Angular Velocity and Moment of Inertia
3:04 Moment of Inertia
3:48 Linear, Surface and Volumetric Mass Density
4:34 The Parallel Axis Theorem
5:08 Rotational and Translational Equilibrium
6:07 Rotational Kinetic Energy & Rolling without Slipping
6:59 Angular Momentum of a Particle (on every AP Physics C test I have seen)
8:58 Angular Momentum of a Rigid Object with Shape
9:44 Net Torque in terms of Angular Momentum (and Conservation of L)
10:49 Newton's Universal Law of Gravitation
11:34 Kepler's 3rd Law (Do NOT Memorize It!)
13:19 Frequency and Angular Frequency
13:45 Universal Gravitational Potential Energy
14:34 Simple Harmonic Motion
15:18 Example Proving Simple Harmonic Motion and Deriving Period
16:43 Energy in Simple Harmonic Motion
Want Lecture Notes?
Next Video:
Review of all AP Physics C Mechanics Dimensions
Found by Flipping Physics in AP Physics C: Mechanics
December 21, 2013 at 02:40 PM
Ages: 13 - 18
License: Proprietary
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Speed
From YouTube, produced by TVOntario
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The concept of speed is introduced to the inertia-mass relationship. Concept: Force varies with mass and rate of change of speed. Eureka was a series of short cartoons on physics that ran on public television in the 1980's. The video explains the concept in simple and well illustrated way. Good for students of any elementary school level.
Found by Barb in Speed
August 9, 2009 at 04:52 PM
Ages: 7 - 12
License: Proprietary
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Science is everywhere. Science laboratory demonstrations and experiments are presented as magic tricks for an audience. The scientific priciples behind the tricks are then explained. Various "tricks" demonstrate air pressure, inertia and Newton's first law of motion. Run time 07:09.
Found by grazianione in Experiments for Children
July 27, 2009 at 08:20 AM
Ages: 8 - 18
License: Proprietary
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It is not obvious in all relative motion problems how to draw the vector diagrams. Sometimes the velocity of the object with respect to the Earth is not the hypotenuse of the velocity vector addition triangle. Here we address how to handle a problem like that.
Content Times:
0:15 Reading the problem
0:40 Translating the problem
1:52 Visualizing the problem
2:17 Drawing the vector diagram
3:33 Rearranging the vector equation
4:40 Redrawing the vector diagram
5:30 The Earth subscript drops out of the equation
5:51 Solving part (a): solving for theta
6:40 Solving part (b): solving for the speed of the car relative to the Earth
7:48 Understanding the answer to part (b)
Want Lecture Notes?
Multilingual? Please help translate Flipping Physics videos!
Next Video: inertial-mass.html">Introduction to Inertia and Inertial Mass
Previous video: An introductory Relative Motion Problem with Vector Components
1¢/minute
Found by Flipping Physics in Relative Motion
October 7, 2014 at 01:56 PM
Ages: 9 - 18
License: Proprietary
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Forces and Motion
From gamequarium.org, produced by David Stanfield and Denise Boiteau
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Force varies with changes in mass and speed. This cartoon video briefly explains the following concepts: force, mass, inertia, speed, how to calculate force, Many examples are given during this short video. Run time 04:48.
Found by begamatt in Force & Balance
April 15, 2010 at 07:54 PM
Ages: 8 - 12
License: Undetermined
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"Science of NFL Football" is a 10-part video series funded by the National Science Foundation and produced in partnership with the National Football League. In this segment, NBC's Lester Holt breaks down Isaac Newton's First Law of Motion and how it can change how fast players can speed the football up or slow it down. Professors Tony Schmitz of the University of Florida and Jim Gates of the University of Maryland explain why the control of inertia is so vital to the outcome of the game. (03:51)
Found by teresahopson in Sports Science
March 20, 2018 at 05:40 PM
Ages: 10 - 18
License: Proprietary
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Equations to memorize for the AP Physics 1 Exam.
Want Lecture Notes?
Content Times:
0:13 What I mean by “Memorize”
1:09 Speed, velocity and acceleration
1:51 Missing UAM Equation
2:03 Force of gravity on an incline
2:23 Mechanical Energy equations
2:58 Power
3:35 Conservation of Linear Momentum
3:57 Angular velocity, angular acceleration and 2 UαM equations
4:30 Tangential velocity and Rolling without Slipping center of mass velocity
5:05 Centripetal Force
5:26 Moment of Inertia
5:52 Conservation of Angular Momentum
6:21 Beat Frequency
6:31 Net charge
6:39 Electric Potential Difference
6:55 Electric Power
Multilingual? Please help translate Flipping Physics videos!
All my AP Physics 1 Review Videos
1¢/minute
Found by Flipping Physics in AP Physics 1
April 14, 2015 at 02:33 PM
Ages: 12 - 18
License: Proprietary
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Review of the Rotational Dynamics topics covered in the AP Physics 1 curriculum.
Content Times:
0:14 Torque
1:30 Moment Arm or Lever Arm
2:55 Net Torque
3:37 Moment of Inertia
4:29 Rotational Kinetic Energy
4:54 Rolling without slipping
6:31 Angular Momentum
7:06 Angular Impulse (08:37)
Found by Flipping Physics in AP Physics 1
March 28, 2015 at 06:40 PM
Ages: 12 - 18
License: Proprietary
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Calculus based review of moment of inertia for a system of particles and a rigid object with shape, the derivation of rotational kinetic energy, derivations of the following moments of inertia: Uniform Thin Hoop about is Cylindrical Axis, Uniform Rigid Rod about its Center of Mass and about one end, also the parallel axis theorem, torque, the rotational form of Newton’s Second Law, pulleys with mass and the force of tension, the Right Hand Rule for direction of torque, and rolling with and without slipping.
For the calculus based AP Physics C mechanics exam.
Want Lecture Notes?
Content Times:
0:10 Moment of Inertia of a system of particles derivation
1:46 Rotational Kinetic Energy derivation
2:49 Moment of Inertia of a rigid object with shape derivation
3:52 Moment of Inertia of a Uniform Thin Hoop about its Cylindrical Axis derivation
5:31 Moment of Inertia of a Uniform Rigid Rod about its Center of Mass derivation
8:02 Moment of Inertia of a Uniform Rigid Rod about one end derivation
9:16 The Parallel Axis Theorem
11:29 Torque
12:21 Simple torque diagram
14:14 Rotational form of Newton’s Second Law
15:07 Pulleys with mass and the Force of Tension
15:33 The Right Hand Rule the for the direction of torque
16:56 Rolling without Slipping
17:40 Rolling with Slipping
Multilingual? Please help translate Flipping Physics videos!
AP Physics C Review Website
Next Video: AP Physics C: Rotational Dynamics Review - 2 of 2 (Mechanics)
Previous Video: AP Physics C: Rotational Kinematics Review (Mechanics)
Please support me on Patreon!
Thank you to Sawdog for being my Quality Control individual for this video.
Found by Flipping Physics in AP Physics C: Mechanics
April 9, 2017 at 02:36 PM
Ages: 15 - 18
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A very basic introduction to the rotational form of Newton’s Second Law of Motion by way of its translational form. Want Lecture Notes?This is an AP Physics 1 Topic.
Content Times:
0:15 Newton’s Second Law
0:48 The rotational form
1:59 Using the equation
3:13 In words
Next Video: inertia-demo.html">Demonstrating Rotational Inertia (or Moment of Inertia)
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Net Torque on a Door Problem
Please support me on Patreon!
Thank you to Scott Carter, Christopher Becke, Jonathan Everett, and Faiaz Rahman for being my Quality Control Team for this video.
Found by Flipping Physics in Torque
November 4, 2018 at 03:59 PM
Ages: 10 - 18
License: Proprietary
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Translational and Rotational motion are demonstrated and reviewed. Torque is introduced via the equation and several door opening demonstrations. Moment arm or lever arm is defined and illustrated. Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:06 Translational and Rotational Motion
0:58 Defining Torque
1:53 The torque equation
2:59 Door example #1
4:56 Door example #2
6:11 Door example #3
6:58 Defining moment arm
9:18 Torque units
Next Video: An Introductory Torque Wrench Problem
Multilingual? Please help translate Flipping Physics videos!
Previous Video: inertia-rigid-objects.html">Moments of Inertia of Rigid Objects with Shape
Please support me on Patreon!
Thank you to Christopher Becke and Scott Carter for being my Quality Control Team for this video.
Found by Flipping Physics in Moments
October 7, 2018 at 01:57 PM
Ages: 10 - 18
License: Proprietary
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An introduction to Rotational Equilibrium with a review of Translational Equilibrium and demonstrations. Wait there’s more … Static Equilibrium! Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:07 Reviewing Translational Equilibrium
1:21 Visualizing Translational Equilibrium
2:07 Rotational Equilibrium Introduction
3:09 Visualizing Rotational Equilibrium
4:22 Static Equilibrium
Next Video: Introductory Rotational Equilibrium Problem
Multilingual? Please help translate Flipping Physics videos!
Previous Video: inertia-bike-wheel-2.html">(2 of 2) Measuring the Rotational Inertia of a Bike Wheel
Please support me on Patreon!
Thank you to Scott Carter, Christopher Becke, and Faiaz Rahman for being my Quality Control Team for this video.
Found by Flipping Physics in Torque
December 9, 2018 at 01:51 PM
Ages: 11 - 18
License: Proprietary
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Example: What is the closest to the end of a 93 g uniform meterstick you can place a 200.0 g object and have the system stay balanced? The meterstick is supported at the 20.0 cm and 80.0 cm marks. Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:03 A scaffold
0:33 The problem
1:28 Free body diagram
2:06 Net torque
3:34 Force Normal demo
4:28 Solving the problem
6:17 Testing our answer
Next Video: inertia.html">Graphing the Rotational Inertia of an Irregular Shape
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Placing the Fulcrum on a Seesaw
Please support me on Patreon!
Thank you to Christopher Becke, Jonathan Everett, and Faiaz Rahman for being my Quality Control Team for this video.
Found by Flipping Physics in Torque
January 13, 2019 at 04:07 PM
Ages: 10 - 18
License: Proprietary
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Students build virtual rockets to explore the physics concepts of forces (thrust, drag, lift, weight) and Newton's Three Laws of Motion-Inertia, Acceleration and Interaction.
Found by Mrs Jefferies in Force & Balance
May 20, 2012 at 03:03 PM
Ages: 10 - 18
License: Public Domain
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A rope is wrapped around a bicycle wheel with a rotational inertia of 0.68MR^2. The wheel is released from rest and allowed to descend without slipping as the rope unwinds from the wheel. In terms of g, determine the acceleration of the wheel as it descends. Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:07 Translating the problem to physics
1:07 Drawing the Free Body Diagram and summing the forces
1:58 Summing the torques about the axle of the wheel
3:13 Finding the relationship between the linear and angular accelerations
5:13 Understanding that we made a mistake and what that mistake is
6:46 Fixing our mistake
8:05 Demonstrating that our solution is correct
Next Video: (Energy Solution) Acceleration of a Wheel descending on a Rope
https://www.flippingphysics.com/wheel-rope-acceleration-energy.html
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Previous Video: Which Direction will the Wheel Accelerate?
Please support me on Patreon!
Thank you to Scott Carter and Christopher Becke for being my Quality Control Team for this video.
Found by Flipping Physics in Rotational Motion
April 28, 2019 at 02:29 PM
Ages: 11 - 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?
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Wheel Conservation of Angular Momentum Demonstration and Solution
Please support me on Patreon!
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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