Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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

Sound Definitions

Sound A form of energy that travels by longitudinal mechanical waves
Natural Frequency Frequency at which a body oscillates when vibrating freely
Resonance Rapid amplification of oscillation when a periodic force is applied at the same frequency as the natural frequency of a body
Stationary Wave A wave that remains in a constant position
Node A point on a stationary wave where there is no vibration
Antinode A point on a stationary wave where there is maximum vibration
Fundamental Frequency The lowest natural frequency of a vibrating object
Harmonics Multiples of the fundamental frequency
Quality Describes the shape of a sound wave; it depends on the number and the amplitudes of the harmonics present
Sound Intensity Rate at which sound energy passes through a unit area at right angles to the direction of the propagation of the wave
Threshold of Hearing The smallest sound intensity detectable by the average human ear at a frequency of 1 kHz
Sound Intensity Level Scale that compares a particular sound intensity to the threshold of hearing
dB(A) Scale A sound intensity level scale that has been adapted for the ear's frequency response
Created by: conordesmond
Popular Physics sets




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:
restart all cards