Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Chapter 21 Vocab

Science

QuestionAnswer
Sound Wave a longitudinal wave caused by vibrations and carried through a substance.
Medium a substance through which a wave can travel.
Tinnitus one of the most common types of hearing loss; results from long term exposure to loud sounds.
Pitch a measure of how high or low a sound is perceived to be, depending on the frequency of the sound wave
Fequency the number of crests or troughs that are made in a given time.
Ultrasonic sounds that have a frequency too high for people to hear.
Doppler effect the apparent change in the frequency of a sound caused by the motion of either the listener or the source of the sound.
Loudness the measure of how well a sound can be heard.
Amplitude the largest distance the particles in a wave vibrate from their rest postion.
Decibel the most common unit used to measure loudness (dB)
Reflection the bouncing back of a wave after it strikes a barrier.
Echo a reflected sound wave
Echolocation the use of reflected sound waves to find objects
Sonar a type of electronic echolaocation
Interference the combination of two or more waves that results in a single wave
Sonic Bond the explosive sound heard when a shock wave reaches your ear.
Standing Wave a pattern of vibration that simulates a wave that is standing still
Resonance happens when an object vibrating at or near a resonant frequency of a second object causes the second object to vibrate
Sound Quality the result of the blending of several pitches through interference.
Noise a sound that consists of a random mix of frequencies
Created by: LaurenMitcham
Popular English Vocabulary sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards