Flipping Physics
Angular Velocity Introduction
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...
Virtually Passed
Math Puzzle - How many circles wrap around a circle?
How many circles, N, of radii r can be wrapped around a circle of radius R? What is the value of r/R when N=3?
Flipping Physics
When is a Pendulum in Simple Harmonic Motion?
Demonstrating when a pendulum is in simple harmonic motion.
Professor Dave Explains
Angular Motion and Torque
More spinning things! Records, and wheels, and doors, and other fun things. The equations that govern this kind of motion are just like the ones we learned in kinematics, except they have different symbols. Lots of funky Greek letters in...
Brian McLogan
What is the unit circle and how do you find points on the unit circle
👉 Learn about the points on the unit circle. A unit circle is a circle which radius is 1 and is centered at the origin in the cartesian coordinate system. To construct the unit circle we take note of the points where the unit circle...
Professor Dave Explains
Introduction to Trigonometry: Angles and Radians
An introduction to trigonometry.
Flipped Math
Amplitude and Midline
Roll through two graphs. Learners see how the points from the unit circle allow easy construction of the graphs for sine and cosine using an instructional video. They discover how to find the amplitude and midline both from the graphs...
Flipped Math
Unit Circle and Radians
Measure angles is easy as pi. Pupils review special right triangles to find exact values for trigonometric functions. Scholars learn about radians and how they connect to measurements in degrees. They find exact and approximate values of...
Crash Course
Rotational Motion: Crash Course Physics #11
Don't let rotational motion make your head spin—use a video lesson to highlight the important ideas related to this concept! The 11th lesson in a physics series breaks down the motion in a rotating object. The narrator includes a...
Brightstorm
Radian Measure of Angles - Concept
An informative lesson begins with a concept video explaining how radians are figured. Then it offers videos of four progressively difficult guided practice problems.
Brightstorm
Radian Measure of Angles
Degrees are not the only way to measure an angle! The third lesson in a four-part series introduces the definition of a radian. The problem videos use the definition to solve problems including converting between degrees and...
DoodleScience
Circular Motion
Do you ever feel like you are going around and around without getting anywhere? Maybe you should learn about circular motion. In the third of six videos in the series, circular motion, centripetal force, and centripetal acceleration...
Sophia Learning
Sophia: Cosine: Lesson 2
The concept of the cosine of an angle is introduced here. This lesson [3:19] is 2 of 4 in the series titled "Cosine."
Sophia Learning
Sophia: Cosine: Lesson 4
The concept of the cosine of an angle is introduced here. This lesson [3:32] is 4 of 4 in the series titled "Cosine."
Sophia Learning
Sophia: Cosine Wave: Lesson 4
The shape and nature of the cosine wave are introduced here. This lesson [1:36] is 4 of 7 in the series titled "Cosine Wave."
Sophia Learning
Sophia: Relating Radians and Degrees: Lesson 2
This lesson demonstrates conversion between radians and degrees. It is 2 of 10 in the series titled "Relating Radians and Degrees."
Sophia Learning
Sophia: Sine and Cosine: Lesson 7
The differences and similarities of the graphs for sine and cosine are discussed here. This lesson is 7 of 7 in the series titled "Sine and Cosine."
Sophia Learning
Sophia: Trigonometic Notation: Lesson 3
Different ways of noting angles and trigonometric functions are discussed in this lesson. It is 3 of 5 in the series titled "Trigonometic Notation."
Sophia Learning
Sophia: Trigonometric Function Tables: Lesson 1
The use of tables to find the value for a trigonometric function of a specific angle is discussed here. This lesson is 1 of 5 in the series titled "Trigonometric Function Tables."
Sophia Learning
Sophia: Drawing a Negative Angle: Lesson 7
This lesson show haw a negative angle can be drawn on a unit circle. It is 7 of 7 in the series titled "Drawing a Negative Angle."
Khan Academy
Khan Academy: Basic Trigonometric Ratios: Using Trig Functions
Video using the basic trigonometric functions to find the length of a side in a right triangle. Examples are given with angle measures in radians.
Khan Academy
Khan Academy: Algebra Ii: Radians: Introduction to Radians
Understanding the definition and motivation for radians and the relationship between radians and degrees. [10:51]
Khan Academy
Khan Academy: Radians: Converting Degrees to Radians
Worked example to help understand how we covert degrees to radians.