Sound Misconceptions

Concepts

Sound is vibrations and has the properties or volume, pitch, and quality

Misconceptions

Comes from people's mouths.
Comes from wires sparking in electronic devices. Sound actually travels in wires of telephone…
Is waves of different noises coming from different objects.
When waves go through some objects and come out as music or conversation.
Is vibrations in the air that the ear picks up and the brain interprets as sound.
Sound waves cause sound to come out of an object.
Sound moves between particles (empty space).
Matter moves with waves
In a flute… the flute vibrates (column of air)
Sound travels faster in air because there is open space. Sound would be slower in water because the bubbles would get in the way. It’s hard to hear in solid and water because the stuff gets in the way. Sound can't travel in liquids or solids.
Hitting and object harder or softer changes pitch.
Pitch changes as the vibration increases or decreases, rubber band, tuning fork…
The Doppler effect is caused by the horn changing pitch or engineer in train changing it.
Sound travels in one direction like a flash light beam.

Robert Sweetland's Notes ©