Doppler Effect Ball.
P.I.R.A #: 3B40.20
Illustrates: Doppler effect on sound.
Description: A Nerf ball with a small speaker inside that can be thrown around by students.
Size: 7" dia.
Notes: Wires come off the speaker easily - be gentle with it.
Hazard: Students not catching the ball.
Condition: Good.
Instructor Comments
