Portage 7 Sound Ch. 2

14 terms by neurohrd 

Create a new folder

Advertisement Upgrade to remove ads

sound

Wave produced by vibrations that can travel through a medium.

vibration

Rapid back-and-forth motion.

vacuum

Space with few or no particles where sound can't travel.

pitch

Highness or lowness of sound; higher frequency = higher pitch.

hertz

Unit to measure frequency.

ultrasound

Sound with frequency higher than 20,000 hertz.

resonance

Strengthening of a sound wave when it combines with an object's natural vibration.

Doppler effect

Change in pitch that occurs when the source or hearer is moving.

intensity

Amount of energy a sound wave has (loudness).

decibel

Unit to measure intensity of a sound wave.

amplification

Increasing the strength of an electrical signal to increase intensity (loudness) of a sound.

acoustics

Scientific study of sound.

echolocation

Finding location by sending out ultrasound waves and interpreting the returning echoes.

sonar

Instuments that use echolocation to locate objects under water.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set