There are a collection of Virtual Experiments available thanks to a University of Southampton STEM project and they provide an easy way of interacting with equipment to make changes that show you :
Diode Testing
Measure current and voltage of a diode in various conditions
Transformer Modelling
Perform open circuit, short circuit and load tests on an unknown transformer
Syncronscope and V-Curves
Use the Syncroscope and lamps to syncronise a motor with 3 phase power
Hydrogen Oxygen Explosion
Mix oxygen with Hydrogen and find the pressure at which the explosion occurs
Electronics Introduction
Observational experiment introducing some simple logic switches and a Analogue to Digital converter
Hooks Law
Simple Experiment to measure hooks law with a calibrated newton meter
Cell Growth
Measure the growth rate of cells at various temperatures with the help of timelapse photography
Rate of Reaction
Change the concentrations of thiosulphate and measure the reaction time
Thermal Resistivity
Use the labview program to measure the resistivity of several wet and dry materials
Phasor Simulation
A simulation to help visualise phasor synchronization
Water Flow Simulation
Add Doping and Sampling points along a river to try and map the underground waterflow
Aspects of the experiments work with NVDA screen reader in Firefox and they are being updated to make them more accessible in the future. Tabbing order is not as good as it might be for keyboard only users but once again this is very much work in progress.