Flipping Physics
2017 #2 Free Response Question - AP Physics 1 - Exam Solution
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...
Curated Video
Finding Circumcenters and Incenters of a Triangle Using Angle Bisectors, Perpendicular Bisectors, and Circles
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...
Curated Video
Constructing an Inscribed Circle on a Triangle Using Angle Bisectors
In this video, you will learn how to construct an inscribed circle on a triangle using the triangle's angle bisectors. The inscribed circle is the largest possible circle that fits inside the triangle, with the triangle's sides tangent...
TMW Media
Geometric Proofs: The properties of proofs
What are the 9 properties you can apply to proofs? What else can you apply to proofs? Geometric Proofs, Part 3
TMW Media
Geometric Proofs: Part 3 of 3 of learning to solve proofs
This video contains 1 proof to solve. Geometric Proofs, Part 6
Flipping Physics
Determining the Force Normal on a Toy Car moving up a Curved Hill
A 0.453 kg toy car moving at 1.15 m/s is going up a semi-circular hill with a radius of 0.89 m. When the hill makes an angle of 32° with the horizontal, what is the magnitude of the force normal on the car?
Curated Video
Predicting Three-Dimensional Results of Rotating Simple Figures
In this video, students will learn how to predict the three-dimensional shape that results from rotating a two-dimensional figure. By analyzing the effects of rotations and understanding the concept of an axis of rotation, they will be...
TMW Media
Geometric Proofs: Why are proofs important
Why is it important to do proofs? What is a proof? Why does every statement have to be true? Geometric Proofs, Part 1
Math Fortress
Calculus III: The Dot Product (Level 4 of 12)
This video goes over the dot product also known as the scalar product. This video goes over 5 examples illustrating how to solve problems that make use of the geometric and component definition of the dot product.
Brian McLogan
Evaluating the difference of two angles for the cosine function
👉 Learn how to evaluate the secant of the sum or difference of two angles using the sum/difference formulas. To do this, we first use the Pythagoras theorem to obtain all the sides of the right triangle in the unit circle. Recall that...
Professor Dave Explains
Overview of Geologic Structures Part 2: Faults and Folds
We just learned about the different types of rock deformation, so now let's get a closer look at some more specific structures. First we have faults, which can be normal, reverse, and strike-slip or reverse faults. We should also take a...
Flipping Physics
AP Physics C: Dynamics Review (Mechanics) - Newton's 3 Laws, Friction, Equilibrium
Calculus based review of Newton’s three laws, basic forces in dynamics such as the force of gravity, force normal, force of tension, force applied, force of friction, free body diagrams, translational equilibrium, the drag or resistive...
Curated Video
Introduction to Moments: Understanding and Calculating Forces and Distances
This is a lecture video on moments, which explains what a moment is and how to calculate the moment of a force. The video uses various examples to illustrate the concept of moments and how they are affected by the magnitude and direction...
Curated Video
Describing Cross-Sections of a Right Rectangular Pyramid
In this video, students learn how to describe the cross-sections of a right rectangular pyramid by slicing at different angles. They are introduced to the concept of cross-sections and how they result from cutting a 3-dimensional shape...
Let's Tute
Distance Formula & Pythagorean Theorem
In this online video we will learn how to find the Area of triangle in Coordinate Geometry and simple trick to remember the formula quickly.
Curated Video
Classifying Polygons by Perpendicular Sides
In this video lesson, we explain the concept of perpendicular lines and demonstrate how to identify them in different shapes. By the end of the lesson, students will be able to categorize polygons based on the number of pairs of...
Curated Video
Classifying Quadrilaterals by Describing Properties
It's not enough to just consider the number of sides in a quadrilateral, we must also consider the congruence of sides, the types of angles formed, and the presence of parallel or perpendicular lines. Using a square as an example, we...
Curated Video
Proving the Pythagorean Theorem Using Similarity
In this lesson, students will learn how to prove the Pythagorean theorem using similarity. By investigating and following a series of steps, they will discover that by cutting a right triangle and drawing altitudes, they can create...
Brian McLogan
How to use the pythagorean theorem to find the missing length of a kite
👉 Learn how to solve problems with kites. A kite is a four-sided shape (quadrilateral) with two equal pairs of adjacent sides and the diagonals are perpendicular. Some of the properties of kites are: each pair of adjacent sides are...
Let's Tute
Perimeter
n this video we will learn how to recognize a quadrilateral as trapezium & kite based on their properties
Zach Star
A google and amazon interview question with a really clever solution
A google and amazon interview question with a really clever solution
Why U
Algebra 56 - A Geometrical View of Gauss-Jordan Elimination -
Although Gauss-Jordan Elimination is typically thought of as a purely algebraic process, when viewed geometrically, this process is beautiful and amazing, providing insights into the underlying mechanisms of the matrix transformations...
Flipping Physics
Introductory Static Friction on an Incline Problem
A book is resting on a board. One end of the board is slowly raised. The book starts to slide when the incline angle is 15°. What is the coefficient of static friction between the book and the incline?
Flipping Physics
Introductory Kinetic Friction on an Incline Problem
You place a book on a 14° incline and then let go of the book. If the book takes 2.05 seconds to travel 0.78 meters, what is the coefficient of kinetic friction between the book and the incline?