Two-Mass Gravity LabDrag either ball, or press Start Collision
How to investigate gravity
Type either mass and observe the force.
Drag either ball horizontally to set distance.
Press Start Collision to push the balls together.
Use Reset Experiment to replay.
Ready to investigate
Universal gravitationF = Gm₁m₂ / r²Equal and opposite forces
Collision Investigation Complete
The animation has settled. Review the live gravitational calculation.
📢 Important Message
Understand Before You Explore
Try the simulation only after understanding the concept clearly.
Use the simulation after completing the corresponding activity in your school laboratory.
The best way to learn: Experiment with different parameters and configurations, and observe the results.
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1. Mass Laboratory
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GRAND VICTORY! 3 STARS! 🎉
You mastered Newton's Law of Universal Gravitation & Recoil Dynamics!
Mass 1200 kg
Mass 2300 kg
Center Distance3.00 m
Gravity Force4.45 × 10⁻⁷ N
⚡ Key Educational Takeaways Mastered:
• Newton's Universal Gravitation: Every mass attracts every other mass with a force directly proportional to the product of their masses: F = G·m₁·m₂ / r².
• Inverse-Square Distance Law (1/r²): Cutting center distance in half multiplies gravitational attraction by 4×; doubling distance drops force to 1/4.
• Newton's Third Law (Action-Reaction): Both masses experience the exact same magnitude of attractive force in opposite directions, regardless of whether one mass is much heavier.
• Gravitational Constant G: G = 6.6743 × 10⁻¹¹ N·m²/kg² is tiny, meaning everyday objects feel imperceptible gravity compared to astronomical masses.
