Lesson pack
Forces pack
A forces unit needs arrows students place themselves, a ramp they can tilt, and F = ma with the steps shown. Put these three on one class page.
Copy each snippet onto one class page. The front door is widgets. Host steps: Google Sites. Classroom notes: teachers.
Free-body diagram builder
Build the free body diagram for five classic scenarios and get it checked force by force, with feedback that explains every fix. Free, works on phones.
Inclined plane simulator
Drag the ramp angle and friction and watch gravity split into components, the stays-or-slides verdict flip, and the acceleration update live.
Net force calculator
Solve F = ma for force, mass, or acceleration, and add two force components. Covers Newton's second law and how to find the net force on a system.