Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

soundwavesrock AJC

Science sound definitions

decibel A unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with given level on a logarithmic scale.
compression The reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition
rarefaction diminution in the density of something, especially air or a gas.
Doppler Effect the change in frequency of a wave
vacuum A space entirely devoid of matter.
frequency the rate at which something occurs or is repeated over a particular period of time or in a given sample.
hertz the SI unit of frequency, equal to one cycle per second.
ultrasonic of or involving sound waves with a frequency above the upper limit of human hearing.
infrasonic relating to or denoting sound waves with a frequency below the lower limit of human audibility.
echo a sound or series of sounds caused by the reflection of sound waves from a surface back to the listener
interference the action of interfering or the process of being interfered with.
reverberation prolongation of a sound; resonance
pitch the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.
rhythm a strong, regular, repeated pattern of movement or sound.
oscilloscope a device for viewing oscillations, as of electrical voltage or current, by a display on the screen of a cathode ray tube
wavelength the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
crest a comb or tuft of feathers, fur, or skin on the head of a bird or other animal.
trough a long, narrow open container for animals to eat or drink out of.
kilohertz a measure of frequency equivalent to 1,000 cycles per second
megahertz one million hertz, especially as a measure of the frequency of radio transmissions or the clock speed of a computer.
echolocation the location of objects by reflected sound, in particular that used by animals such as dolphins and bats.
Created by: jdo1118