About Gravity and Orbits
Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths. Visualize the sizes and distances between different heavenly bodies, and turn off gravity to see what would happen without it!
How to play Gravity and Orbits
Everything is hands-on: drag, click and experiment — the simulation reacts instantly. Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths.
Questions & answers
- What is Gravity and Orbits?
- Gravity and Orbits is a free interactive simulation from PhET Interactive Simulations (University of Colorado Boulder) that you can play right in your browser on crumble.lol — no downloads and no sign-up. Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths. Visualize the sizes and distances between different heavenly bodies, and turn off gravity to see what would happen without it!
- What can kids learn from Gravity and Orbits?
- It helps kids explore: describe the relationship between the sun, earth, moon and space station, including orbits and positions describe the size and distance between the sun, earth, moon and space station explain how gravity controls the motion of our solar system identify the variables that affect the strength of gravity predict how motion would change if gravity was stronger or weaker.
- What age is Gravity and Orbits good for?
- It is designed for elementary school (roughly ages 5–10) up to university, and curious kids outside that range can absolutely enjoy poking around it too.
- Is Gravity and Orbits free to play?
- Yes — Gravity and Orbits is completely free on crumble.lol and runs fully in your browser on computers and tablets.