Resultaten

Video 1: How to calculate the area and circumference of circles and semi-circles
Video 2: Examples pertaining to calculating the area and circumference of circles and semi-circles
Video 3: Common mistakes made when calculating the area and circumference of circles and semi-circles

Note: After watching each video, click on the 'back button' to return to the VLE

The Earth behaves like a giant bar magnet and as such there is a magnetic field present around it. The Earth’s magnetic field is thought to be caused by flowing liquid metals in the outer core of the planet which causes electric currents and a magnetic field.

An elaboration on how to use Newton's second law when dealing with multiple forces, forces in two dimensions, and diagonal forces.

Newton's second law of motion is F = ma, or force is equal to mass times acceleration. Learn how to use the formula to calculate acceleration.