problem Favourite The not-so-simple pendulum 2 Age 16 to 18 Challenge level Things are roughened up and friction is now added to the approximate simple pendulum
problem Favourite Differential equation matcher Age 16 to 18 Challenge level Match the descriptions of physical processes to these differential equations.
problem The real hydrogen atom Age 16 to 18 Challenge level Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms
problem Differential electricity Age 16 to 18 Challenge level As a capacitor discharges, its charge changes continuously. Find the differential equation governing this variation.
problem Phase space Age 16 to 18 Challenge level Explore the issues surrounding the concept of Phase Space.