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InteractiveGravity Drop
Change gravity and drop height to see how long an object takes to fall.
Open experiment → Your interactive science playground
The universe is
more interesting
than you think.
Play with the forces that shape our world. Explore gravity, motion and energy through simple experiments built to make physics feel alive.
01 · PlayInteractive experiments
02 · DiscoverShort science explainers
03 · UnderstandLearn by exploring
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The experiment room
Big ideas. Hands-on science.
No lab coat required. Choose an experiment, change the variables and see how the world responds.
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ExploreWave Studio
Explore how frequency and amplitude change a wave's shape.
Open experiment →⚡
LearnEnergy Explorer
See how potential energy changes as an object moves through a height.
Open experiment →◉
Quick challengePhysics Brain Teaser
Test your intuition with a short question about everyday physics.
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VisualOrbit Explorer
Discover how gravity keeps planets and satellites moving along curved paths.
Explore the concept →✦
Daily discoveryRandom Science Fact
Reveal a bite-sized fact about space, forces, matter and the world around you.
Experiment 01
Gravity drop lab
In an ideal free fall, ignoring air resistance, all objects accelerate at the same rate near Earth's surface.
Illustration only. The calculation uses ideal free fall, not a full air-resistance simulation.
Estimated fall time
2.02 s
Calculated using t = √(2h/g).
Impact speed
19.80 m/s
Calculated using v = √(2gh).
Experiment 02
Wave studio
Amplitude affects wave height. Frequency affects how many cycles fit into a given distance.
This is a visual model of a travelling wave, not a measurement of a specific physical wave.
Experiment 03
Energy explorer
Gravitational potential energy depends on mass, gravity and height: PE = mgh.
Potential energy
196 J
Using Earth's gravity at approximately 9.8 m/s².
Curiosity, explained
Science worth sharing.
Small ideas that can change how you see everyday life.
Astronauts aboard the International Space Station experience apparent weightlessness because they and the station are continuously falling around Earth together.
Seat belts help protect passengers because moving bodies tend to keep moving unless a force changes their motion.
Sunlight takes about 8 minutes and 20 seconds to travel from the Sun to Earth.
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