CK-12 Foundation
Ck 12: Episd: Free Body Diagrams
[Free Registration/Login may be required to access all resource tools.] Students will understand how to read and create free body diagrams.
Physics Classroom
The Physics Classroom: Newtons Laws: Free Body Diagram Interactive
A skill-building tool that presents students with twelve situations for which they must construct free-body diagrams. Force arrows allow user to toggle the magnitude of the force. Feedback is immediate; opportunities to correct answers...