### Differential Equation Matcher

Match the descriptions of physical processes to these differential equations.

### The Not-so-simple Pendulum 2

Things are roughened up and friction is now added to the approximate simple pendulum

### The Real Hydrogen Atom

Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms

# Differential Electricity

##### Age 16 to 18Challenge Level

V represents the voltage drop across the parallel combination of the capacitor (C) and resistor (R). Find the differential equation that V obeys in terms of $V_0$ and its derivatives.

Make up some realistic constants for a capacitor. Can you solve the resulting differential equation?