This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2H Q11, which involves finding the density of a solid sphere. Students will learn how to use the formula for the volume of a sphere to find its...

This video shows the process for solving the problem presented in IGCSE A June 2018 paper 1HR Q22, which involves the density and volume of a 3D shape. Students will understand the concept of density and its relation to mass and volume....

This video is about the Schwarzschild radius of a black hole, (its "event horizon"), and how much mass and density is required to reach the point of no return where an object like a star, neutron star, red giant, etc...

A hollow sphere, solid sphere, and thin hoop are simultaneously released from rest at the top of an #incline. Which will reach the bottom first? Assume all objects are of uniform density. #RollingWithoutSlipping

Maxwell's equations are the simplest way to represent the relationship between the electromagnetic field and it's carrier particle, the photon. Simple does not necessarily mean easy though. Let's dig into what Maxwell's formulas are...