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Rotational Motion

Rotational kinematics and dynamics. For example, arc length, angular velocity, angular acceleration, tangential velocity, tangential acceleration, centripetal acceleration and force, torque, moment of inertia and angular momentum.

There are 24 videos in this category and 0 videos in 0 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 8 - 18
404 Views:
Defining Pi for Physics
From YouTube, produced by Jonathan Thomas-Palmer
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... [more]
May 30, 2017 at 12:41 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
370 Views:
Introductory Arc Length Problem - Gum on a Bike Tire
From YouTube, produced by Jonathan Thomas-Palmer
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 ... [more]
June 4, 2017 at 05:53 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
328 Views:
Introductory Angular Velocity Problem - A Turning Bike Tire
From YouTube, produced by Jonathan Thomas-Palmer
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 Trans... [more]
June 19, 2017 at 10:51 AM
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Not Right For WatchKnowLearn
Ages: 10 - 18
326 Views:
Angular Acceleration Introduction
From YouTube, produced by Jonathan Thomas-Palmer
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: ... [more]
June 26, 2017 at 08:21 AM
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Not Right For WatchKnowLearn
Ages: 8 - 18
318 Views:
Introduction to Circular Motion and Arc Length
From YouTube, produced by Jonathan Thomas-Palmer
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 Phys... [more]
May 21, 2017 at 01:53 PM
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Not Right For WatchKnowLearn
Ages: 8 - 18
295 Views:
Angular Velocity Introduction
From YouTube, produced by Jonathan Thomas-Palmer
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 sho... [more]
June 12, 2017 at 01:40 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
257 Views:
Introductory Uniformly Angularly Accelerated Motion Problem - A CD Player
From YouTube, produced by Jonathan Thomas-Palmer
What is the angular acceleration of a compact disc that turns through 3.25 revolutions while it uniformly slows to a stop in 2.27 seconds?Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Translating the problem 0:52 Determi... [more]
July 17, 2017 at 11:47 AM
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Not Right For WatchKnowLearn
Ages: 10 - 18
243 Views:
Human Tangential Velocity Demonstration
From YouTube, produced by Jonathan Thomas-Palmer
Humans are best for demonstrating Tangential Velocity and understanding that it is not the same as angular velocity. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:10 Beginning the demonstration 1:19 Adding the last human 1... [more]
July 23, 2017 at 04:33 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
226 Views:
Angular Accelerations of a Record Player
From YouTube, produced by Jonathan Thomas-Palmer
A record player is plugged in, uniformly accelerates to 45 revolutions per minute, and then is unplugged. The record player (a) takes 0.85 seconds to get up to speed, (b) spends 3.37 seconds at 45 rpms, and then (c) takes 2.32 seconds to slow down to... [more]
July 11, 2017 at 06:52 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
212 Views:
Uniformly Angularly Accelerated Motion Introduction
From YouTube, produced by Jonathan Thomas-Palmer
Using Uniformly Accelerated Motion (UAM) as a framework to learn about Uniformly Angularly Accelerated Motion (UαM). Just like UAM, UαM has 5 variables, 4 equations and if you know 3 of the UαM variables, you can determine the other 2 UαM variables, ... [more]
July 11, 2017 at 06:54 PM
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