This video covers:

- What contact force
s are
- Examples - friction, air resistance, tension, normal reac
tion force
- What non-con
tact forces are
- Examples - gravitational, ele

ctrostatic,...

This video covers:

- What direct proportion or directly proportional m
eans
- How to write expressions for directly proportional rel

ationships

This video is suitable for maths cours
es around the world.

KS3 -...

Limiting and Excess Reactants Explained. Often, in chemical reactions there will be less of one reactant that the other - we call this one the limiting reactant because how much reaction can take place. Whereas the more abundant reactant...

This video covers the term 'mole', explains 'Avogadros constant', and runs through examples of the sort of calculations you might have to do with moles.



This video is sui
table for:
- H
igher tier only/>- All exam...

This video covers:

- How to calculate the volume of a gas using the equal: volume = moles
x 24
- How to find the volume of a product when you're told the volume of

a reactant

Exam
board specific info:
AQA -...

How to calculate concentration in g/dm³.



To measure how much of a particular substance we have a give volume, we can work out the concentration. In this video we cover how to calculate concentration in grams per decimetre...

In this video, the basics of electric circuits are discussed. The components of an electric circuit such as wires, batteries, resistors, capacitors, and switches are introduced with their respective symbols. The concept of electromotive...

Stars /Stars /VY Canis Majoris Song

In this math video we will learn how to use a ratio. We will be given a ratio of mass to volume. We will review how to write a ratio and how to write a proportion using equivalent ratios. We will use the given information and identify...

In this math video we will write & identify a real world algebraic expression. We will be presented with a real world situation. We will begin by drawing a picture to represent the situation. We will then label the picture using the...

Dr. Forrester defines kinetic energy and discusses the effects that mass and speed have on kinetic energy. She also explains how kinetic energy can change into other types of energy.

Dr. Forrester teaches about Newton’s Second Law. She conducts an experiment to show Newton’s Second Law. She explains that the formula F=ma is needed to calculate the amount of force needed to accelerate an object.

Dr. Forrester defines the terms: molecule and compounds. She explains that every substance of matter is made up of atoms, and she discusses Dalton’s atomic theory.

This video explores five fun facts about icebergs.

Learn how to easily and accurately make a solution and calculate the solution concentration.

Calculate the horsepower of a toy car in this fun physics science project.

Let's learn about the exoplanet Kepler-186f!

In this video we take a detailed look at how the Centrifugal compressor works on a chiller and why it's important.<br/>
We use 3D models, real world photos and worked examples to help you understand how th<br/>ey operate.

Sea levels are rising. For many cities on the the eastern shores of the United States, the problem is existential. We take a look at how Miami and Atlantic City are tackling climate change, and the challenges they face under a skeptical...

This video examines the force of gravity and looks at its critical role in the formation of the sun and planets of our solar system.

Learn about the largest star in the Milky Way Galaxy, UY Scuti First cataloged in 1860 by German astronomers at Bonn Observatory. UY Scuti is the 38th Variable Star of the Constellation Scutum. Educate yourself with this amazing and fun...

Early atomic physics - the development of the first ideas. The first ideas started with Democritus: atom is unsplittable. Then John Dalton Law of constant proportions. Avogadro: Molecular theory of gas laws. Prout's hydrogen weight...

Welcome to our AP Physics 1 review session focused on center of mass multiple-choice problems! Join us as we tackle two challenging questions that will help you prepare for the upcoming exam. In this video, we dive into realistic...

In this video, the Flipping Physics team discusses the concept of mass and density by comparing the mass and density of steel and wood. The team first addresses the misconception that steel is always more massive than wood, explaining...