The Physics Classroom
Learn basics physics concepts
Minute Physics YouTube Channel
These short YouTube videos will help you understand physics / science concepts.
An online physics problem and video bank designed for conceptual, standard, honors or AP1 physics
This site From the Nuffield Foundation, aims to show how experiments can sharpen students powers of observation, stimulate questions and help develop new understanding and vocabulary.
Physical Science videos
over 500 videos related to different aspects of physical science.
Physics Spark Notes
Here is a list of Apps especially designed for Science. There are some physics Apps in the list.