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.
Don't know
Know
remaining cards
Save
0:01
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:
Retries:
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

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