Two-body gravitational problem (binary stars)
Two stars orbit their common centre of mass. Change masses, separation and eccentricity: both follow ellipses, the CM stays fixed and T² = 4π²a³/G(m₁+m₂).
About this experiment
| Subject | Physics |
|---|---|
| Class | 11 |
| Chapter | 7. Gravitation |
| NCERT section | 7.2 (extension) |
| Level | Advanced (JEE / Olympiad) |
| Time | about 12 minutes |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: binary star · two body · centre of mass · Kepler · reduced mass