Physics Flash Animations
by Don Ion (

To download Flash Movies – Right Click on Link and “Save Target As”.

Movies can be played through a web-browser or through the free Flash Player from Adobe

To access video versions of the Flash animations (video but without interactive nature), go here

Length of Earth's Day and Night (371KB)

example: Atwood's Inclined Plane (18.8KB)

Centripetal Acceleration

Projectile motion

Projectile Range

The Monkey and the Hunter

Newton’s Cannon

Kepler’s Laws


Oscilations and Waves:

Simple Harmonic Motion

The Doppler Effect

Shock Waves

Standing Waves

Heat engines:
The 2 Stroke Engine (17.0KB)
The 4 Stroke Engine (25.4KB)
The Stirling Engine (43.0KB)
The Carnot Cycle

Electricity and Magnetism:


LRC Phasors

Electric field around an Oscillating Charge
Object Image Relationships for a Convex Lens (22.8KB)

Mirror and Lens Ray Geometry

Ray Construction for Concave Mirrors

Ray Construction for Convex Lenses

Ray Construction for Concave Lenses

example: Virtual Object for a Two Convex Lens System (7.00KB)
Double Slit Interference
Double slit phasors
Multislit phasors
Quarter Wave Plate / Circular Polarization


The Science of the Silicon Solar Cell - (You will need to download all of these files and keep them together in the same folder. Do not change their names - they link together through "Introduction")

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The Michelson-Morley Experiment
Time Dilation
Length Contraction
Clock Synchronization
Clock Synchronization in Moving Reference Frames