Simulations
Interactive, watermarked physics demonstrations — pick one to adjust its parameters and run it.
Doppler Effect
LAUNCHFly a sound source past a fixed observer — adjust its speed, true pitch, the speed of sound, and how close it passes to hear (and see, in the compressed and stretched wavefronts) the classic pitch glide, and watch a Mach cone form once it goes supersonic.
Locked — requires Launch →
Standing Waves on a String
LAUNCHPluck a string fixed at both ends into a chosen harmonic — adjust its length, tension, and mass per unit length to see how fast, and in how many nodes and antinodes, it vibrates.
Locked — requires Launch →
Two-Source Wave Interference
FREETwo in-phase point sources emit circular waves — adjust the wavelength and their separation to see the exact bright/dark interference fringes form where the path lengths line up or cancel.
Open simulation →