In this video, the teacher explains the logic behind the trigonometric ratio value table for specific angles. Starting with 0 and 90 degrees, the teacher goes on to explain the values for 30, 60, and 45 degrees angles.

Americans seem very afraid of cancer. Much of this fear is legitimate. Cancer is a significant cause of death. Unlike other causes, it often seems to come out of nowhere. It's the "silent killer". But evidence increasingly argues that...

Overview of the people of Ireland, with a focus on the impact of the mass emigration to the United States during the 19th century.

This video explains the concept of surds and provides three key rules for simplifying them. It covers the rule of squaring the square root of a number, combining the square roots of two numbers when they are multiplied, and separating...

In this GCSE PE Paper 1 topic I go through the definitions of the different volumes of the heart and try to explain the differences that an athlete would have over a sedentary person

The refugee crisis is one of the most pressing challenges for the world today: around 1 person in 100 is a refugee. David Miliband, a former British foreign secretary, offers his thoughts on how to solve it.

This video explains the concepts of shear stress and torsion. It describes how internal stresses develop in a beam to resist external forces and how shear stress is defined as force per unit area when the force is acting parallel to the...

In this lesson we extend our knowledge of Uniformly Accelerated Motion to include freely falling objects. We talk about what Free-Fall means, how to work with it and how to identify and object in Free-Fall. Today I get to introduce so...

It explains Bohr's model of an atom and electron distribution in different orbits. It also talks about valency.

The video discusses the concept of pure substances in chemistry and highlights the differences between pure substances and mixtures. The presenter explains that pure substances are defined as a single element or compound that is not...

This nugget briefly explains periodic motion, displacement in periodic motion and its units

Composition of a quadratic function to a square root function

How to evaluate the limit of the square root function

The video is a lecture on shifts in demand and supply diagrams in economics. The presenter explains the key terms and concepts related to demand and supply and how they are combined for demand supply analysis. Different types of shifts,...

In this video, students learn how to solve perimeter and area problems using rational equations. They are also taught the importance of verifying solutions to eliminate extraneous solutions. The video provides examples and explanations...

As a trigonometry teacher, I explain how to remember the value table for commonly used angles and their trigonometric ratios. I also provide a trick to quickly calculate the values for sine, cos, cosec, sec, tan, and cot for any angle....

This session explains about basics of Trigonometry, properties of right angle triangle, trigonometric ratios

This video explains about how to derive trigonometric ratios values.

What's work? Not that place you go to earn money. In physics it means something else. And what's energy? Not like in the groovy sense. Actually, energy is one of the most improperly used words in the English language. Let physics define...

In this video, students learn how to find the perimeter of a rectangle using area models. The teacher explains the concept of perimeter and demonstrates how to count the outer line segments of squares to find the total distance around...

Learn the basics about Relative Atomic Mass. It is a tricky concept that's actually quite simple to understand and here, you will know how to calculate it. Find more in this video!

An explanation of limits and limit laws as they pertain to calculus.

A demonstration of a block-spring system on an incline is used to show the relationships between work and energy, and how they depended on what is defined as the system. Want Lecture Notes?f='http://www.flippingphysics.com/energy...'...

The great debate is here! In this episode, we break down what a Metaphor and Simile is, how they are similar and different. We also have a decisive winner at the end!