Video Discussions

Name: Angular Acceleration Introduction Category: Rotational Motion Date Added: 2017-07-11 Submitter: Flipping Physics Angular acceleration is introduced by way of linear acceleration. The units of radians per second squared are discussed. Examples of objects which angular acceleration are shown. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:23 Average angular acceleration 1:02 Angular acceleration units 1:37 Demonstrating objects which have angular acceleration Multilingual? Please help translate Flipping Physics videos! Next Video: Angular Accelerations of a Record Player Previous Video: Introductory Angular Veloc…

Name: Introductory Angular Velocity Problem - A Turning Bike Tire Category: Rotational Motion Date Added: 2017-06-26 Submitter: Flipping Physics The wheel of a bike rotates exactly 3 times in 12.2 seconds. What is the average angular velocity of the wheel in (a) radians per second and (b) revolutions per minute? Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Translating the problem 1:32 Solving for the angular velocity in radians per second 2:22 Converting from radians per second to revolutions per minute 3:24 Three common mistakes made by students when doing this conversion. 4:37 Alternate and easier solution for part b …

Name: Angular Velocity Introduction Category: Rotational Motion Date Added: 2017-06-19 Submitter: Flipping Physics The equation for average angular velocity is presented in relation to the equation for average linear velocity. Radians per second and revolutions per minute are discusses as the units for angular velocity. Objects which have angular velocity are shows. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:09 Average linear velocity 0:22 Average angular velocity 0:53 The units for angular velocity 1:37 Examples of objects with angular velocity Multilingual? Please help translate Flipping Physics videos! Next Video: I…

Name: Introductory Arc Length Problem - Gum on a Bike Tire Category: Rotational Motion Date Added: 2017-06-12 Submitter: Flipping Physics How far does a piece of gum stuck to the outside of a 67 cm diameter wheel travel while the wheel rotates through 149°? A conversion from revolutions to degrees is performed. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:11 Reading, visualizing, and translating the problem 1:22 Solving the problem 1:51 Converting from revolutions to radians 3:09 Measuring our answer Multilingual? Please help translate Flipping Physics videos! Next Video: Angular Velocity Introduction Previous Video…

Name: Defining Pi for Physics Category: Rotational Motion Date Added: 2017-06-04 Submitter: Flipping Physics Pi is defined as the ratio of the circumference of a circle to its diameter. A frisbee is used to show the definition of pi. The units for pi, radians, are discussed. The conversion factor between revolutions, degrees, and radians is introduced. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:22 The definition of pi 0:49 Demonstrating the definition of pi 1:35 The units for pi (radians) 2:04 revolutions, degrees, and radians 2:28 Please use rad for radians (not r, that is for radius) Multilingual? Please help translate Fl…

Name: Introduction to Circular Motion and Arc Length Category: Rotational Motion Date Added: 2017-05-30 Submitter: Flipping Physics Cartesian and polar coordinates are introduced and how to switch from one to the other is derived. The concept of angular displacement and arc length are demonstrated. Circumference is shown to be an arc length. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:10 Cartesian coordinates and circular motion 1:00 Polar coordinates and circular motion 1:40 Switching between polar and Cartesian coordinates 2:18 Introduction to Angular Displacement and Arc Length 3:24 The Arc Length equation 4:13 Circumference…

Name: AP Physics C: Universal Gravitation Review (Mechanics) Category: Oscillations & Gravity Date Added: 2017-12-22 Submitter: Flipping Physics Calculus based review of Universal Gravitation including Newton’s Universal Law of Gravitation, solving for the acceleration due to gravity in a constant gravitational field, universal gravitational potential energy, graphing universal gravitational potential energy between an object and the Earth, three example problems (binding energy, escape velocity and orbital energy), and Kepler’s three laws. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? At 6:01 this video addresses an error in the U…

Name: AP Physics C: Rotational vs. Linear Review (Mechanics) Category: Rotational Motion Date Added: 2017-04-28 Submitter: Flipping Physics Calculus based review and comparison of the linear and rotational equations which are in the AP Physics C mechanics curriculum. Topics include: displacement, velocity, acceleration, uniformly accelerated motion, uniformly angularly accelerated motion, mass, momentum of inertia, kinetic energy, Newton’s second law, force, torque, power, and momentum. Want Lecture Notes? Content Times: 0:12 Displacement 038 Velocity 1:08 Acceleration 1:33 Uniformly Accelerated Motion 2:15 Uniformly Angularly Accelerated Motion 2:3…

Name: AP Physics C: Rotational Dynamics Review - 2 of 2 (Mechanics) Category: Rotational Motion Date Added: 2017-04-28 Submitter: Flipping Physics Calculus based review of the cross product torque equation, how to do a unit vector cross product problem, rotational equilibrium, the rotational form of Newton’s second law, the angular momentum of a particle and of a rigid object with shape, the derivation of conservation of angular momentum, and a conservation of angular momentum example problem which reviews a lot of the pieces necessary to understand conservation of angular momentum. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content…

Name: AP Physics C: Rotational Dynamics Review - 1 of 2 (Mechanics) Category: Rotational Motion Date Added: 2017-04-28 Submitter: Flipping Physics 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 calcul…

Name: AP Physics C: Momentum, Impulse, Collisions and Center of Mass Review (Mechanics) Category: Momentum and Collisions Date Added: 2017-04-28 Submitter: Flipping Physics 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 Lecture Notes? Content Times: 0:11 Mome…

Name: 2D Conservation of Momentum Example using Air Hockey Discs Category: Momentum and Collisions Date Added: 2017-05-21 Submitter: Flipping Physics A 28.8 g yellow air hockey disc elastically strikes a 26.9 g stationary red air hockey disc. If the velocity of the yellow disc before the collision is 33.6 cm/s in the x direction and after the collision it is 10.7 cm/s at an angle 63.4° S of E, what is the velocity of the red disc after the collision? This is an AP Physics 1 topic. Want Lecture Notes? Content Times: 0:12 The problem 1:49 Breaking the initial velocity of disc 1 into its components 3:06 Conservation of momentum in the x-direction 5:24 Conser…

Name: Review of Mechanical Energy and Momentum Equations and When To Use Them! Category: Momentum and Collisions Date Added: 2017-02-16 Submitter: Flipping Physics By the time students learn about all the equations for mechanical energy, momentum, impulse and impact force, they often start to confuse the equations with one another. This is a straightforward, simple look at all of those equations and when to use them. This is an AP Physics 1 Topic. Want Lecture Notes? Content Times: 0:14 Tacky Sweater Day! 0:22 Conservation of Mechanical Energy 0:54 Work due to Friction equals Change in Mechanical Energy 1:30 Net Work equals change in Kinetic Energy 3:…

Name: Mechanical Universe: The Millikan Experiment (12) Category: Electricity & Magnetism Date Added: 2017-02-07 Submitter: FizziksGuy Episode 12. The Millikan Experiment: A dramatic recreation of Millikan's classic oil-drop experiment to determine the charge of a single electron.“The Mechanical Universe,” is a critically-acclaimed series of 52 thirty-minute videos covering the basic topics of an introductory university physics course.Each program in the series opens and closes with Caltech Professor David Goodstein providing philosophical, historical and often humorous insight into the subject at hand while lecturing to his freshman physics class. The series conta…

Name: Impulse Comparison of Three Different Demonstrations Category: Momentum and Collisions Date Added: 2017-02-09 Submitter: Flipping Physics A racquetball is dropped on to three different substances from the same height above each: water, soil, and wood. Rank the _______ during the collision with each substance in order from least to most. (a) Impulse. (b) Average Force of Impact. (Assume the racquetball stops during the collision with the water and soil.) This is an AP Physics 1 Topic. Want Lecture Notes? Content Times: 0:11 Prom Dress Day! 0:20 The three demonstrations 0:32 The problem 1:43 The equation for Impulse and Impact Force 2:02 Unders…

Name: Using Impulse to Calculate Initial Height Category: Momentum and Collisions Date Added: 2017-02-03 Submitter: Flipping Physics A 66 g beanbag is dropped and stops upon impact with the ground. If the impulse measured during the collision is 0.33 N·s, from what height above the ground was the beanbag dropped? This is an AP Physics 1 Topic. Want Lecture Notes? Content Times: 0:12 Superhero Day! 0:56 The problem 1:39 Splitting the problem in to two parts 2:32 Using Impulse for part 2 3:30 Using Conservation of Energy for part 1 4:45 What went wrong? Next Video: Impulse Comparison of Three Different Demonstrations Multilingual? …

Name: You Can't Run From Momentum! (a momentum introduction) Category: Momentum and Collisions Date Added: 2017-01-12 Submitter: Flipping Physics Two kids walk through the woods discussing momentum. I mean, who wouldn’t? Okay, fine. It’s a basic introduction to the concept of momentum. Want Lecture Notes? This is an AP Physics 1 Topic. Next Video: Force of Impact Equation Derivation http://www.flippingphysics.com/impact-force.html Multilingual? Please help translate Flipping Physics videos! Previous Video: Instantaneous Power Delivered by a Car Engine - Example Problem Please support me on Patreon! Please consider becoming a Flipping Ph…

Name: Review of Momentum, Impact Force, and Impulse Category: Momentum and Collisions Date Added: 2017-01-26 Submitter: Flipping Physics An important review highlighting differences between the equations for Conservation of Momentum, Impact Force and Impulse. Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:17 Conservation of Momentum 1:01 An explosion is a collision in reverse 1:22 Impact Force 1:39 Impulse 2:16 Impulse equals 3 things 2:53 How many objects are in these equations? A big THANK YOU to Elle Konrad who let me borrow several of her old dance costumes! Next Video: Using Impulse to Calculate Initial Height …

Name: Demonstrating How Helmets Affect Impulse and Impact Force Category: Momentum and Collisions Date Added: 2016-12-08 Submitter: Flipping Physics Demonstrating and measuring how a helmet changes impulse, impact force and change in time during a collision. Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:21 The demonstration without a helmet 1:15 The equation for Impulse 1:55 How a helmet should affect the variables 2:36 The demonstration with a helmet 3:29 Comparing with and without a helmet Next Video: Review of Momentum, Impact Force, and Impulse Multilingual? Please help translate Flipping Physics videos! Previo…

Name: Demonstrating Impulse is Area Under the Curve Category: Momentum and Collisions Date Added: 2016-12-01 Submitter: Flipping Physics Demonstrating, measuring and showing Impulse is Area Under the Force vs. Time Curve. Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:09 Deriving the Impulse Equation using algebra 0:47 Deriving the Impulse Equation using calculus 2:08 The demonstration 2:42 Illustrating “area under the curve” Next Video: Demonstrating How Helmets Affect Impulse and Impact Force Multilingual? Please help translate Flipping Physics videos! Previous Video: Intro…

Name: Introductory Elastic Collision Problem Demonstration Category: Momentum and Collisions Date Added: 2016-11-24 Submitter: Flipping Physics An elastic collision is demonstrated and analyzed. Want lecture notes? This is an AP Physics 1 Topic. A big thank you to Mr. Becke for being a guest in today’s video! Content Times: 0:25 Reading and translating the problem 1:17 The demonstration 1:52 Solving for velocity final of cart 2 3:46 Measuring the velocity final of cart 2 4:25 Checking if kinetic energy is conserved 6:22 We should have converted to meters per second Next Video: Demonstrating Impulse is Area Under the Curve Multilingual? Ple…

Name: Introductory Perfectly Inelastic Collision Problem Demonstration Category: Momentum and Collisions Date Added: 2016-11-17 Submitter: Flipping Physics A perfectly inelastic collision is demonstrated and analyzed. Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:08 Demonstrating the Perfectly Inelastic Collision 0:41 Known values 1:34 Using Conservation of Momentum 2:22 Both objects have the same final velocity 3:37 Measuring the final velocity 4:05 Determining the relative error 4:45 Fruit Day! Next Video: Introductory Elastic Collision Problem Demonstration Multil…

Name: Introduction to Elastic and Inelastic Collisions Category: Momentum and Collisions Date Added: 2016-11-10 Submitter: Flipping Physics Learn about Elastic, Inelastic and Perfectly Inelastic collisions via a demonstration Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:15 The charities 1:05 Elastic collisions 2:09 Inelastic collisions 3:29 Perfectly Inelastic collisions 4:13 Demonstration #1 5:28 Demonstration #2 Next Video: Introductory Perfectly Inelastic Collision Problem Demonstration Multilingual? Please help translate Flipping Physics videos! Previous Video: Introductory Conservation of Momentum Explosi…

Name: Introductory Conservation of Momentum Explosion Problem Demonstration Category: Momentum and Collisions Date Added: 2016-10-13 Submitter: Flipping Physics Now that we have learned about conservation of momentum, let’s apply what we have learned to an “explosion”. Okay, it’s really just the nerd-a-pult launching a ball while on momentum carts. Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:38 The demonstration 1:16 The known values 2:07 Solving the problem using conservation of momentum 4:00 Measuring the final velocity of the nerd-a-pult 4:39 Determining relative error 5:09 What happens with a less massive projectile? …

Name: Introduction to Conservation of Momentum with Demonstrations Category: Momentum and Collisions Date Added: 2016-10-13 Submitter: Flipping Physics Demonstrations of and Introduction to Conservation of Momentum Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:10 Deriving Conservation of Momentum 1:33 Demonstrating Conservation of Momentum 1:53 Analyzing the demonstration 3:29 How a rocket works Next Video: Introductory Conservation of Momentum Explosion Problem Demonstration Multilingual? Please help translate Flipping Physics videos! Previous Video: How to Wear A Helmet - A PSA from Flipping Physics Please s…