The Physics Classroom (LINK) is a fabulous website for physics classrooms. I love it!!
Basically, it is an online physics tutorial which includes mini-lessons that check for understanding, media to illustrate physical phenomena, and miscellaneous help for specific concepts and skills.
For example, here’s a tutorial for Work, Energy, & Power.
An animation of the energy involved in a roller coaster can be found here.
In the miscellaneous section, there’s a special section for vector addition.