Curated Video
GCSE Physics - How Transformers Work #82
This video covers: - Brief summary of what transformers do (i.e. step up or step down the voltage) - How transformers work Exam board specific info: AQA - Separate/triple science and higher tier only IGCSE Edexcel - Separate/triple...
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How to Convert Recurring Decimals to Fractions (Proportions Part 6/6) #18
This video covers how to convert recurring decimals to fractions.This concept is quite tricky so feel free to watch it a couple of times. KS3 - Not on course GCSE Foundation - Not on course GCSE Higher - All on your course
Curated Video
How to Convert Fractions to Recurring Decimals (Proportions Part 3/6) #15
This video looks at how to convert fractions to decimals when the decimals recur, such as 1/3 = 0.33333... If you want to know how to convert basic fractions to non recurring decimals, take a look at this video: • How to Convert...
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How to Convert Decimals to Percentages (Proportions part 4/6) #16
In this video we cover how you convert decimals to percentages, which we can do by multiplying them by 100. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All on your course
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How to Add or Subtract Numbers in Standard Form (Part 4/4) #26
This video covers how to add and subtract numbers when they're in standard from like 4x10^2 + 5x10^3. This is part 4 in our 4 part series on standard form. KS3 - Not on your course GCSE Foundation - All on your course GCSE Higher - All...
Curated Video
GCSE Physics - Transformer Calculations #83
This video covers: - Brief overview of how transformers work - How to calculate the voltage and current of the primary and secondary coils, using the number of turn on each coil - Example questions Exam board specific info: AQA -...
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GCSE Physics - National Grid #20
This video covers: - How electricity is formed and send across the country - Why we need to a low current and high voltage for electricity transmission - What step-up and step-down transformers do General info: - Suitable for all GCSE...
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GCSE Chemistry - Covalent Bonding #16
This video covers how covalent bonding works, how to show it with dot and cross diagrams, and the types of substances that covalent bonds can form.
Curated Video
GCSE Maths - Pythagoras' Theorem And How To Use It #120
This video covers how to use Pythagoras' Theorem, which helps us to find the length of a missing side in a right-angle triangle. This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on...
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GCSE Maths - Using Ratios to Find the Coordinates of a Point On a Line #73
This video explains how to find the coordinates of a point that lies a certain ratio along a line, e.g. "If A is (3, 4) and B is (-7, 8), and C lies somewhere on the line AB such that AC : CB is 3 : 1, what are the coordinates of C?". We...
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GCSE Maths - Rearranging Formulas Part 2 - When The Subject Appears Twice #49
This video covers how rearrange formulas to make a particular variable (letter) the subject, when that variable appears in the equation more than once. This video is suitable for maths courses around the world. KS3 - Not on your course...
Curated Video
GCSE Maths - How to Solve Simultaneous Equations - Using the Elimination Technique
This video covers how to use the elimination technique to solve simultaneous equations. This video is suitable for maths courses around the world. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All on your...
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GCSE Maths - Finding the Equation of a Straight Line From 2 Sets of Coordinates #69
This video explains how to find the equation of a straight line, in the form of y = mx + c, when you're given the coordinates of 2 points that the line passes through. This video is suitable for maths courses around the world. KS3 - Not...
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GCSE Maths - Factorising Quadratics - Part 1 - (When the x^2 Coefficient is 1) - #50
This video covers how factorise quadratics into a pair of brackets, for example x^2 + 2x + 3 into (x + 2)(x + 1). If you want to know how to factorise more complex quadratics that include an x^2 term, have a look at part 2: • GCSE Maths...
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GCSE Maths - Expanding Triple Brackets #37
This video covers how to expanding triple brackets, so where we have 3 brackets being multiplied together. Questions will often as you to 'expand and simplify' the expression. This is part 3/3 in our series on expanding brackets. This...
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GCSE Chemistry - Moles, Concentration & Volume Calculations #29
This video covers: - How to use the moles = concentration x volume equation - A worked example using the above equation and molar ratios Exam board specific info: AQA - Higher tier only IGCSE Edexcel - Higher tier and separate science...