I use this handout with my students for guided note taking and practice. It covers the three videos in the Work and Energy series on Mechanical Advantage.
The three videos are:
1. Introduction to mechanical advantage (10:02)
2. Mechanical advantage part 2; levers & moments (6:49)
3. Mechanical advantage part 3; pulleys & wedge (12:43)
To access the videos (no need to create account!) go to khanacademy.org >subjects >science > physics > Work and Energy > Mechanical advantage
The packet includes an advance organizer for note taking on each video, as well as a few follow up questions to check for understanding and further application of knowledge. Could be used as a whole group activity, individual practice, reinforcement, or homework.