wave world 6-8 band
6-8
Wavelength and frequency ww-68-wavelength Wave speed belongs to the medium ww-68-speed Superposition ww-68-superposition Standing waves ww-68-standing Sound properties ww-68-sound-properties Reflection and boundaries ww-68-reflection
ww-68-wavelength
Waveworld: Make A Ripple
Shake the rope at f = 1. Note v = 100 and lambda = 100. Now double the shake rate. The crests pack closer (lambda = 50) but the speed stays at 100. v = f lambda is a treaty, not a throttle.
MISC-WAVE-02
Predict Test Explain Revise Defend Transfer 0/6 evidence steps
home f: 1.0 /s source's v: 100 px/s rope's lambda: 100 px = v / f marked bead: home
source moves -- the shaker's dials
Send one pulse Start wave train (f = 1) Double the shake rate
medium moves -- the rope's nature
Swap in the heavy rope
marked bead displacement (px)
No moves yet -- predict before you shake.