Here is a worksheet to analyze forces on a box on an inclined plane. Students first draw force normal, force perpendicular and force parallel with their numerical values.
2. Students calculate the force normal.
3.. Students find the acceleration on a frictionless plane
4. I then introduce friction and ask for the force of friction
5. I then introduce a second box and ask for the new acceleration.
If you like this worksheet, you probably would like the Atwood Machine worksheet also by Scorton Creek.