Instructional Video1:00
Curated Video

The protractor to measure an angle

K - 8th
The protractor to measure an angle
Instructional Video3:22
Curated Video

High Five Facts - Triangles

Pre-K - 5th
This video explores five fun facts about triangles.
Instructional Video1:18
Flipping Physics

#21 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about using Newton's 2nd Law to determine the acceleration of a block being pulled at an angle on a level surface.
Instructional Video1:09
Flipping Physics

#1 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about Mechanical Work.
Instructional Video3:39
Flipping Physics

#67 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about using the Right Hand Rule to determine the Net Magnetic Force on a current carrying loop near a Bar Magnet.
Instructional Video1:56
Flipping Physics

#30 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about the equation for the net torque on an cylinder with two radii in static equilibrium.
Instructional Video1:57
Flipping Physics

#28 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about how the work done by gravity changes when an object slides up instead of down an incline.
Instructional Video0:52
Flipping Physics

#15 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about finding the work done on a disc by a spring while it moves in one full circle.
Instructional Video2:26
Flipping Physics

#68 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about determining the equation for the changing magnetic field which is inducing an emf on a wire loop.
Instructional Video2:52
Flipping Physics

#57 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about the relationship between frequency and radius for a charged particle moving in a circle in a constant magnetic field.
Instructional Video3:04
Flipping Physics

#56 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about using Farady's and Lenz' Laws to determine the magnitude and direction the induced current on a square loop in a changing magnetic field.
Instructional Video1:32
Flipping Physics

#54 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is about using the right hand rule to determine where the charges move to on a wire moving in a constant magnetic field.
Instructional Video2:40
Flipping Physics

#41 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam

12th - Higher Ed
This problem is a general question about Gauss's Law.
Instructional Video12:36
Flipping Physics

2017 #2 Free Response Question - AP Physics 1 - Exam Solution

12th - Higher Ed
My solutions to Free Response Question #2 from the 2017 AP Physics 1 Exam. Also included are my reflections on how to get more points on the exam. This Experimental Design question also works as a part of the AP Physics C: Mechanics...
Instructional Video11:25
Flipping Physics

Average Power Delivered by a Car Engine - Example Problem

12th - Higher Ed
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?
Instructional Video0:52
Visual Learning Systems

Waves: Refraction

9th - 12th
This video explores the characteristics of waves. It explains the speed of waves, how this value is calculated and the four basic interaction between waves. Other terminology includes: vibration, crest, trough, amplitude, wavelength,...
Instructional Video10:29
Math Fortress

Calculus III: Two Dimensional Vectors (Level 9 of 13)

12th - Higher Ed
This video is a review of Two Dimensional Vectors. This video goes over unit vectors, standard unit vectors and direction of vectors.
Instructional Video4:16
Curated Video

Finding Circumcenters and Incenters of a Triangle Using Angle Bisectors, Perpendicular Bisectors, and Circles

K - 5th
In this lesson, students will learn how to find the circumcenter and incenter of a triangle using angle bisectors, perpendicular bisectors, and circles. They will understand the concept of different centers in a triangle and how they...
Instructional Video7:58
Flipping Physics

AP Physics 1: Equations to Memorize

12th - Higher Ed
Equations to memorize for the AP Physics 1 Exam.
Instructional Video5:37
Flipping Physics

Work due to Friction equals Change in Mechanical Energy Problem by Billy

12th - Higher Ed
Enjoy learning from Billy as he solves a problem using Work due to Friction equals Change in Mechanical Energy.
Instructional Video2:40
Curated Video

Finding Acute Angles in Right Triangles Using Inverse Tangent Function

K - 5th
In this video, the teacher explains how to find the measure of an acute angle in a right triangle when only the side lengths are known. They introduce the concept of trigonometric ratios (sine, cosine, and tangent) and explain how to use...
Instructional Video6:47
Curated Video

Solving for X in Right Triangles using the Sine Ratio

K - 5th
In this video, we learn about solving for X in triangles using the sine ratio. By comparing the ratios of the length of the side opposite an acute angle to the length of the hypotenuse in right triangles, we can determine the value of X....
Instructional Video18:44
Physics Girl

Friction - Physics 101 / AP Physics 1 Review with Dianna Cowern

9th - 12th
Lesson 6 (Friction) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem1:...
Instructional Video11:25
Math Fortress

Calculus III: Two Dimensional Vectors (Level 13 of 13)

12th - Higher Ed
This video is a review of Two Dimensional Vectors. This video goes over applications of vectors. 3 examples are covered illustrating how to solve distance and bearing problems.