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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
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Next Video: acceleration.html">Angular Acceleration Introduction
Previous Video: Angular Velocity Introduction
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Thank you to Scott Carter and Christopher Becke for being my Quality Control team for this video.
Found by Flipping Physics in Rotational Motion
June 19, 2017 at 09:51 AM
Ages: 9 - 18
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With a flexible spine and feet like tire treads, the cheetah is built not only for speed - but for unrivaled acceleration. (03:03)
Found by teresahopson in Cheetah
October 2, 2012 at 06:30 PM
Ages: 7 - 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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Projectile motion is composed of a horizontal and a vertical component. This video shows that via a side-by-side video demonstration and also builds the velocity and acceleration vector diagram.
Content Times:
0:14 Reviewing Projectile Motion
1:00 Introducing each of the video components
1:40 Building the x-direction velocity vectors
2:15 Building the y-direction velocity vectors
3:12 Combing velocity vectors to get resultant velocity vectors
3:41 Showing how we created the resultant velocity vectors
4:47 Adding acceleration vectors in the y-direction
5:28 Adding acceleration vectors in the x-direction
5:45 Completing the Velocity and Acceleration diagram
5:58 The diagram floating over clouds, i mean, why not, eh?
Want Lecture Notes?
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Next Video: Skateboarding Frame of Reference Demonstration
Previous Video:The Classic Bullet Projectile Motion Experiment
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Found by Flipping Physics in Two-Dimensional Projectile Motion
August 12, 2014 at 09:25 AM
Ages: 10 - 18
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Review of all of the Kinematics topics covered in the AP Physics 1 curriculum. Plus some bonus introductory stuff.
Content Times:
0:26 Vector vs. Scalar
1:22 Component Vectors
2:04 Distance vs. Displacement
2:41 Speed vs. Velocity
3:04 Acceleration
3:26 Motion Graphs
4:29 Free Fall Graphs
6:31 Uniformly Accelerated Motion (UAM)
7:52 How to UAM
8:18 Projectile Motion
9:28 Relative Motion
10:00 Center of Mass
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Want Lecture Notes?
Next Video: Dynamics Review for AP Physics 1
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Thank you to Jeremy West who provided Billy with a new bow tie for today’s video. Billy is very appreciative.
Found by Flipping Physics in AP Physics 1
March 2, 2015 at 01:47 PM
Ages: 14 - 18
License: Proprietary
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Simple Harmonic Motion is introduced and demonstrated using a horizontal mass-spring system. Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:01 A horizontal mass-spring system
0:29 Equilibrium position and positions 1, 2, and 3
2:05 Demonstrating simple harmonic motion
2:53 Requirements for simple harmonic motion
Thank you to Anish, Kevin, and Olivia for being my “substitute students” in this video!
Next Video: acceleration-velocity.html">Simple Harmonic Motion - Force, Acceleration, and Velocity at 3 Positions
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Previous Video: Impulse for Two Objects being Attracted to One Another
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Thank you to Aarti Sangwan, Sawdog, Scott Carter, and Christopher Becke for being my Quality Control Team for this video.
Thank you to Youssef Nasr for transcribing the English subtitles of this video.
Found by Flipping Physics in Simple Harmonic Motion
April 8, 2018 at 02:40 PM
Ages: 9 - 18
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This is how you include air resistance in projectile motion. It requires the Drag Force and Numerical Modeling (or the Euler Method). It is also very helpful to use a spreadsheet to do the calculations. I prove a statement from a previous projectile motion problem video, "Air resistance decreases the x displacement of the ball by less than 1 cm."
Content Times:
0:22 The statement this video proves
1:01 The basic concept of air resistance
1:54 The Free Body Diagram
2:20 The Drag Force Equation
3:13 Information about the Lacrosse Ball
4:03 The Drag Coefficient
4:55 The Density of Air
5:18 How the Drag Force affects the motion
5:58 The basic idea of Numerical Modeling (or the Euler Method)
6:50 Solving for the acceleration in the x direction
8:53 Solving for the final velocity in the x direction
9:54 Solving for the final position in the x direction
11:41 Entering the Lacrosse Ball information into Excel
13:34 Solving for the Drag Force in x direction in Excel
14:29 Solving for the acceleration in the x direction in Excel
14:58 Solving for the final velocity and final position in the x direction in Excel
15:46 Solving for the acceleration in the y direction
17:21 Solving for all the variables in the y direction in Excel
19:13 Click and Drag Copy. Harnessing the Power of Excel!
19:43 Understanding the numbers in Excel
20:35 Solving for the decrease in the x displacement caused by the Drag Force
Want lecture notes & the Excel File?
The original problem videos for this are:
(part 1 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity
(part 2 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity
How Many Attempts did it Really Take? - with live music from Amos Lee
Next Problem: Nerd-A-Pult – An Introductory Projectile Motion Problem
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Found by Flipping Physics in Friction
May 9, 2014 at 01:19 PM
Ages: 10 - 18
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Review of conversions, velocity, acceleration, instantaneous and average velocity and acceleration, uniformly accelerated motion, free fall and free fall graphs, component vectors, vector addition, unit vectors, relative velocity and projectile motion. For the calculus based AP Physics C mechanics exam.
Want Lecture Notes?
Content Times:
0:12 Introductory Concepts
2:07 Velocity and Acceleration
3:03 Uniformly Accelerated Motion
6:51 Free Fall
7:45 Free Fall Graphs
9:16 Component Vectors
10:58 Unit Vectors
13:09 Relative Velocity
13:51 Projectile Motion
Next Video: AP Physics C: Dynamics Review (Mechanics)
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AP Physics C Review Website
Please support me on Patreon!
Thank you to my Quality Control help: Jen Larsen, Scott Carter, Natasha Trousdale and Aarti Sangwan
Found by Flipping Physics in AP Physics C: Mechanics
March 9, 2017 at 01:11 PM
Ages: 15 - 18
License: Proprietary
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A 1400 kg Prius uniformly accelerates from rest to 30 km/hr in 9.25 seconds and 42 meters. If an average force of drag of 8.0 N acts on the car, what is the average power developed by the engine in horsepower? Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:15 Translating the example to physics
2:13 The equation for power
3:37 Drawing the Free Body Diagram and summing the forces
4:47 Solving for acceleration and Force Applied
5:43 Determining theta
6:01 Solving for Average Power
6:53 Understanding our answer
7:34 The Horse Pedal
9:13 Comparing to a larger acceleration example
Next Video: Instantaneous Power Delivered by a Car Engine - Example Problem
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Previous Video: Graphing Instantaneous Power
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Found by Flipping Physics in Power
June 28, 2016 at 10:35 AM
Ages: 11 - 18
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Deriving the position equation for an object in simple harmonic motion. Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:01 Reviewing circular motion vs. simple harmonic motion
0:24 Defining x position
1:13 Using angular velocity
3:18 The position equation
3:31 Visualizing the position equation
5:16 The phase constant
6:49 Angular frequency
Next Video: Simple Harmonic Motion - acceleration.html">Velocity and Acceleration Equation Derivations
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Comparing Simple Harmonic Motion to Circular Motion - Demonstration
Please support me on Patreon!
Thank you to Andres Ramos, Sawdog, Christopher Becke, Scott Carter, and Jonathan Everett for being my Quality Control Team for this video.
Thank you to Youssef Nasr for transcribing the English subtitles of this video.
Found by Flipping Physics in Simple Harmonic Motion
June 13, 2018 at 11:12 AM
Ages: 10 - 18
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This video demonstrates new achievements on their robotic quadrotors, specifically "recovering from extreme initial conditions", "precisely tracking trajectories with large accelerations and velocities", and flying through hoops.
Found by freealan in Quadrotors
September 18, 2010 at 11:30 PM
Ages: 8 - 18
License: Undetermined
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Calculus based review of instantaneous and average angular velocity and acceleration, uniformly angularly accelerated motion, arc length, the derivation of tangential velocity, the derivation of tangential acceleration, uniform circular motion, centripetal acceleration, centripetal force, non-uniform circular motion, and the derivation of the relationship between angular velocity and period.
For the calculus based AP Physics C mechanics exam.
Want Lecture Notes?
Content Times:
0:10 Instantaneous and Average Angular Velocity and Acceleration
1:14 Uniformly Angularly Accelerated Motion
2:16 Arc Length
3:22 Tangential Velocity Derivation
4:29 Tangential Acceleration Derivation
6:03 Uniform Circular Motion and Centripetal Acceleration
8:04 Centripetal Force
9:20 Non-Uniform Circular Motion
10:21 Angular Velocity and Period Relationship Derivation
Multilingual? Please help translate Flipping Physics videos!
AP Physics C Review Website
Next Video: AP Physics C: Rotational Dynamics Review - 1 of 2 (Mechanics)
Previous Video: AP Physics C: Momentum, Impulse, Collisions and Center of Mass Review (Mechanics)
Please support me on Patreon!
Thank you to Natasha Trousdale, Aarti Sangwan, and Jen Larson for being my Quality Control team for this video.
Found by Flipping Physics in AP Physics C: Mechanics
April 5, 2017 at 01:06 PM
Ages: 15 - 18
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NASA Connect segment explaining how NASA is using electricity and magnetism to propel spacecraft into orbit. The segment also explains acceleration, mass, and force in an algebraic equation. Includes internet tools for teachers. Length 2:44
Found by ggurley in Teaching Science
June 28, 2012 at 09:14 AM
Ages: 12 - 18
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Calculus based review of definite integrals, indefinite integrals, and derivatives as used in kinematics. Graphs of position, velocity, and acceleration as a function of time are compared using derivatives and integrals. Two of the uniformly accelerated motion (or kinematics) equations are derived using indefinite integrals.
For the calculus based AP Physics C mechanics exam.
Want Lecture Notes?
Content Times:
0:11 Rearranging the acceleration equation to get change in velocity
1:41 Rearranging the velocity equation to get change in position
2:06 Comparing graphs of position, velocity, and acceleration as a function of time
3:28 Using the integral to solve for one of the uniformly accelerated motion equations
4:44 Using the integral to solve for a second uniformly accelerated motion equation
FYI: I do not teach integrals until we get to Work. By then the students who are taking calculus concurrently with AP Physics C Mechanics have had enough experience with derivatives that they only freak out a little bit when I teach them integrals.
Multilingual? Please help translate Flipping Physics videos!
AP Physics C Review Website
Next Video: AP Physics C: Momentum, Impulse, Collisions and Center of Mass Review (Mechanics)
Previous Video: AP Physics C: Work, Energy, and Power Review (Mechanics)
Please support me on Patreon!
Thank you to Mark Kramer and Aarti Sangwan for being my Quality Control team.
Found by Flipping Physics in AP Physics C: Mechanics
March 30, 2017 at 01:00 PM
Ages: 15 - 18
License: Proprietary
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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 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
Multilingual? Please help translate Flipping Physics videos!
AP Physics C Review Website
Next Video: AP Physics C: Rotational Kinematics Review (Mechanics)
Previous Video: AP Physics C: Integrals in Kinematics Review (Mechanics)
Please support me on Patreon!
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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