Phet - https://phet.colorado.edu/ 

Java lab - https://javalab.org/en/ 

O physics: https://ophysics.com/ 

Ck interactives (requires free login / login with google): https://interactives.ck12.org/simulations/physics.html 

The physics aviary: https://www.thephysicsaviary.com/index.html 

Sim bucket: https://www.simbucket.com/welcome-to-simbucket/ 

Concord https://learn.concord.org/ 

Lab Xchange: https://www.labxchange.org/library 

BEST - Best Evidence Science Teaching Resources

Science doctor wesbite with lots of worksheets

Isaac Physics - Free website for setting self marking calaculation questions for students

SciTunes - Physics songs 

Next-Time physics questions from Paul Hewitt

School Physics Website from Keith Gibbs (Author of the very useful Resourceful Physics Teacher Book and e-book

IOP Spark website - Lots of interesting ideas but often need some work to implement them

Physics online - Mostly student explainer videos for a wide range of topics

Veriatsium - Popular science videos (mostly physics themed)

Homemade Science with Bruce Yeany - Mostly intersting physics practicals and demonstrations