A professional browser-based physics simulation for teaching free fall, energy conservation, and kinematics. No install needed — open the HTML file and it runs instantly in any browser.

Watch the demo:

Try it free first:

91¶¶Òõ: /teaching-resource/free-fall-physics-lab-lite-free-13497515

:

(Free Lite version — test the simulation in your browser before you buy)

WHAT IT COVERS

SUVAT equations: v²=u²+2as, s=ut+½at², v=u+at, s=((v+u)/2)×t
Kinetic energy (Eₖ=½mv²) and potential energy (Eₚ=mgh)
Energy conservation with live energy bars
Coefficient of restitution and bouncing
Air resistance, drag force, and terminal velocity
Weight (W=mg) across different gravitational fields

9 PLANETS + THE SUN

Earth, Moon, Mars, Jupiter, Venus, Saturn, Uranus, Neptune, Pluto, and the Sun. Gravity values from NASA. Watch how fall time, impact velocity, and energy change across worlds.
6 OBJECTS

Feather, Tennis Ball, Cricket Ball, Football, Metal Ball, Bowling Ball — each with realistic mass and drag properties.
KEY FEATURES

Live formula box updates as you change inputs
Precision control: 1dp / 2dp / 3dp / Exact display
Pause, Step (0.1s), and Slow Motion for classroom use
Energy and Velocity graphs animate in real time
Air resistance with terminal velocity display
Dark mode (default) and Light projector mode
CSV data export for student investigations
5 ready-made scenarios (Earth Standard, Moon Drop, Jupiter Heavy, Super Bounce, Mars Feather)

WHAT’S INCLUDED

cynelix_freefall_lab.html (the simulation — single file)
Teacher Guide (.docx)
Student Worksheet (.docx)
Answer Key (.docx)
Licence (.txt)
README with setup instructions

TECHNICAL

Single HTML file — no internet, no install, no login. Works in Chrome, Edge, Firefox, Safari. 91¶¶Òõted on Windows, Mac, tablet. Curriculum-neutral — suitable for secondary and pre-university kinematics (general guidance only).
Questions? cynelix.lab@gmail.com
© 2025 Cynelix. Single-user licence. Not affiliated with any examination board.