3Blue1Brown
Feynman's Lost Lecture
This video recounts a lecture by Richard Feynman giving an elementary demonstration of why planets orbit in ellipses. See the excellent book by Judith and David Goodstein, "Feynman's lost lecture”, for the full story behind this lecture,...
MinutePhysics
Feynman's Lost Lecture (ft. 3Blue1Brown)
Check out Grant’s channel: 3blue1brown. This video recounts a lecture by Richard Feynman giving an elementary demonstration of why planets orbit in ellipses. See the excellent book by Judith and David Goodstein, "Feynman's lost lecture”,...
TED-Ed
TED-Ed: Daniel Finkel: Can you solve the unstoppable blob riddle?
A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It's also unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet...
TED-Ed
TED-ED: The science of symmetry - Colm Kelleher
When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is _a transformation that leaves an object unchanged." Huh? Colm Kelleher unpacks this...
Brian McLogan
Radian vs Degree
In this video we will explore the difference between a radian and a degree and not only when to use each but how to convert between each other. ⭐️ Stop Memorizing the Unit Circle - • Stop memorizing the unit circle ✅ New Trigonometry...
Curated Video
Introduction to Angles
You could say that angles are some of the building blocks of geometry, and you've probably already seen lots of examples of angles in your life already. In this lesson, we'll go over the exact definition of an angle, how to name an...
Curated Video
Decomposing and Composing Angles
We've decomposed numbers before to make them easier to work with, like how we decompose the number 12 into 10 + 2. That same concept is really helpful when working with angles, too! Especially when there's an unknown angle, we can...
Curated Video
Classifying Triangles
Classifying Triangles explores the six types of triangles by defining the triangle types and classifying triangles by side length and angle measurement.
Curated Video
Subtract Angles
The video “Subtract Angles” reviews types of angles and demonstrates how to find unknown angle measures by using a subtraction equation with a symbol for the unknown angle measure.
Curated Video
Identify Angles
A video entitled "Identify Angles" which discusses the different types of angles and how they can fit together to form other angles.
Zach Star
What are the odds that 3 'random' points on a sphere will form an acute triangle?
What are the odds that 3 'random' points on a sphere will form an acute triangle?
Flipping Physics
#15 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about finding the work done on a disc by a spring while it moves in one full circle.
Flipping Physics
#41 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is a general question about Gauss's Law.
Flipping Physics
Work due to the Force of Gravity on an Incline by Billy
Billy does an example problem to review the work equation.
Curated Video
Categorizing Waves: Transverse and Longitudinal, Mechanical and Electromagnetic
The video explains how waves can be categorized according to two sets of criteria: transverse or longitudinal, and mechanical or electromagnetic. It gives examples of waves that fit each category, such as water waves as a transverse...
Curated Video
Finding Radian Measures of Special Angles
In this lesson, students will learn how to find the exact Radian measure of angles without using a calculator. They will recognize special angles as fractions or multiples of π and understand that π radians is only half of a circle. By...
Curated Video
Understanding the Relationship Between Acute Angles in a Right Triangle
In this video, we explore how to efficiently find the measure of one acute angle in a right triangle. We learn that the size of the angles in a right triangle is based on the length of the sides, and that the acute angles co-vary or...
Brian McLogan
Learn how to show that a line is tangent to a circle by applying the quadratic formula
Learn how to solve problems with tangent line. A tangent line to a circle is a line that touches the circle at exactly one point. The tangent line to a circle makes a right angle with the radius of the circle at the point of its...
Curated Video
Estimating Angle Measurements Using Visual Clues
In this video, the teacher explains how to estimate the measure of angles using visual clues and benchmark angles. They give examples of estimating the angle of a plane's takeoff, the opening angle of a door, and the angle formed by bike...
Curated Video
Classifying Triangles by Examining Properties
In this video, students will learn about the concept of angles and how they determine the classification of a triangle. The video explains the different types of triangles, such as acute, obtuse, isosceles, equilateral, and scalene,...
Curated Video
Using Triangles to Find Unknown Angle Measures
In this video, the teacher explains how to use the measures of interior angles in triangles to find unknown angle measures. The teacher reviews the concept that the interior angles of a triangle add up to 180 degrees and that consecutive...