Build Your Own Solar System

Classes 6–12 · about 6 minutes · free, no sign-up

What you will learn

Explain an orbit as falling while moving sideways, find the speed for a circular orbit, see that planets move fastest closest to their star (Kepler), and what escape speed means.

How to play

Set how far from the star your planet starts.
Choose how hard to push it, and in which direction.
Watch it orbit, crash or escape. Keep planets that orbit and add more.
Finish three challenges: a circle, an oval and an escape.

Go deeper

Notes, practice questions and tests for the same topic:

Class 9 Science: Gravitation NCERT chapters → Class 11 Physics: Gravitation NCERT chapters →

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