Science Flashcards

Sound: a vibration

Sound wave: a moving vibration

Echo: a sound you hear a second time

Mach 1: 760 miles per hour

Supersonic speed: anything faster than 760 mph.

Sonic boom: the sound of something breaking the sound barrier.

Infrasound: a sound too low for us to hear.

Pitch: how we describe the sound we hear.

Timbre: quality of sound.

Sonar: sound navigation and ranging.

Bioacoustics: study of sound made by wildlife.