Where Can I Find Reliable Physics Formulas, Quizzes, and Theories Online?

[stevepham]

Hello everyone, I am really into physics ( Iam a vietnamese ). I am looking for websites regarding the topic below:

1) Formula : all the formula in physics (with confirmed, I saw many sites but not sure which is precise)
2) Quiz :practising using formula .
3) Theory: General theory about physics .

==> I would be grateful if someone could help :)

 

[Greg Bernhardt]

Welcome to PF. Your demands are a little unrealistic. I would suggest studying hard in school, finding extra textbooks to do problems and heading over to Khan Academy, MIT Opencourse and Hyperphysics websites.