Practise straight line graphs for GCSE, IGCSE and GCE - OL: fully interactive

This applet generates a straight line at the click of a button. From the line on a grid, you can calculate both the gradient and intercept, if the latter is visible. Otherwise, you need to find the gradient of the line and the coordinates of any point through which the line passes. E.g. If the gradie…

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Basic Integration: finding the area under a curve by a GeoGebra applet - fully interactive

With the following GeoGebra applet, you can find out the area under a curve by integration -  interactively.  All you need to do is  to move the two sliders to points of your choice and tick the checkbox for answer to appear. The function used in this case is a quadratic function. Enjoy, learn and pro…

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Linear and Geometric Sequences for GCSE, IGCSE & A Level

E.g.1 : Find the nth term of the sequence: 3, 7, 11, 15, ... The common difference is 4.  Let N = an + b, where N is the nth term and a an b are constants to be found. 3 = a(1) + b = a + b 7 =  a(2) + b = 2a + b Solving the two equations simultaneously, we get a = 4 and b = -1 So, the nth term, N = 4n - 1 …

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Multiple Choice Questions on Electricity: GCSE & IGCSE

Multiple Choice Questions - GCSE Physics - Electricity - Time: 30 minutes Created and Programmed by Vivax Solutions Start the Quiz Submit Quiz

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Gravitational Field Strength: From Earth's Core to Outer Space: A Level physics

Gravitational Field Strength: variation from the centre of the Earth Introduction

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