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

physics

study guide CH.25

QuestionAnswer
What is the symbol for frequency? f
a wiggle in time vibration
What determines the the Period of a pendulum? the length
The high points on a wave crest
the low points on a wave trough
what is the number of vibratioins in a given time (usually one secound)? frequency
what is the source of all waves? something that vibrates
What air the water air and string through which wave energy travels? they are the medium
when crest overlaps crest and causes an increase in amplitude what is it called? constructivr interference
when crest of one wave overlaps the trough of another and causes cancellation what is it called? destructive interference
True or false: you can only hear a sonic boom when it breaks the sound barrier. False
what is it called when a plane goes faster than the speed of sound? supersonic
what coccurs when a wave source moves faster than the waves it produces? bow wave
what happens when the source moves faster and faster in water? the narrower the V-shape gets
if a fire truck is moving towards you, with its horn on, what happens tto the frequency? the frequency gets higher
Created by: 14_hbentrup
 

 



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