Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
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

Unit 8 Vocab

Important vocab to know from the sound unit

TermDefinition
pitch the highness or lowness of a note; depends on sound wave frequency
frequency how often a wave passes a certain point in a second; this determines sound wave pitch
intensity related to the loudness of sound; depends on sound wave amplitude
amplitude a measure of the amount of energy carried by a sound wave; this determines sound wave intensity
decibel the unit which intensity is measured in
the decibel scale this is not linear; it says that every time a sound intensity increases by 20 decibels, a sound seems to be twice as loud
harmful range this is the range of intensities greater than 120 dB
audible range this is the range of intensities from 0 dB to 120 dB; it is also the name for the range of pitches from 20 Hz to 20,000 Hz
sub-audible range this is the range of all intensities that are lower than 0 dB--these cannot be heard by humans
subsonic range this is the range of all pitches that are lower than 20 Hz; these cannot be heard by humans
ultrasonic range this is the range of all pitches that are greater than 20,000 Hz; these cannot be heard by humans
consonance any combination of different frequencies that sounds "good" together; this is because the frequencies are either far apart, or they are even multiples of each other
dissonance any combination of different frequencies that sounds "bad" together; this is because the frequencies are close together, so they interfere to create an unpleasant sound
harmonics frequencies that are multiples of a fundamental note; many of these make up how instruments sound when they play "one note"
cochlea the part of the inner ear that is lined with tiny hairs that transmit sound waves to the brain
stereocilia tiny hairs that line the cochlea in the inner ear; they transmit sound waves to the brain
speed of sound this describe how quickly a sound wave moves and it depends on the medium the sound is traveling through
sound this is caused by vibrations of a object vibrating air molecules which then vibrate a person's ear drum, which causes them to hear
doppler effect this explains why sound coming closer seems to increase in pitch, while sound going farther away seems to decrease in pitch
supersonic speed any speed over the speed of sound
music this is a combination of frequencies that fits some pattern
noise this is a random combination of frequencies that makes no pattern
ear drum this is the part of the ear that sound vibration hit initially
mechanical wave this type of wave requires a medium to move through; sound is this type
longitudinal wave this type of wave includes parts called compressions and rarefactions; sound is this type
Created by: davenportscience
 

 



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