Save
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

Science

Chapter 20,and 21 test

sentece sentence
Waves only transfer ____ they don't transfer _____. Energy, Matter
In order for a sound wave to travel you have to have a ______. ______ _____ _____and ______ don't need a medium. Medium, Light x-rays, microwaves
As we saw with the running fork lab,________ occurs when two objects vibrate at the same ______. Resonance, frequency
When you cut the ______ of a wave in half, the ________ doubles. Frequency, wavelength.
As reflected sound wave creates an _______. Echo
On a _____ wave, compressions are the particles crowed together. Longitudinal.
When two _____ overlap, the amplitude increases and this is called ______ ______ Crest, constructive interference. Jgkgjktffūu
An example of q mechanical wave is an _____ wave. Ocean.
The amplitude of a wave shows the ________ of a wave. Height.
_______ is the equating for a wave. v= t x f
The frequency of a wave is described using _______. Hertz
When a wave is _____ it is ben and the image is distorted. Refracted.
A _______ is not a medium. Vacuum
__________ are sounds with frequencies higher than _______ hertz. Ultrasonic sounds, 20,000
The _______ is when either the listener or the source moves. Doppler effect.
The frequency of a sound wave is determined by the ______ of the sound. pitch
The medium that the sound wave is traveling through affects the ______ sound. Speed.
A father pushing his laughing child on the swing is the _______ ______ because she is moving back and forth and the frequency and pitch are changing. Doppler effect.
Remember pitch deals with ______ not ______ so don't use decibels when dealing with pitch. Choses the Highest amount of hertz. Hertz, decibels
Constructive interference occur when _________ overlap and the sound _________ like in speakers. Compression, increases
A person hears ______ _____ when the shock waves reach them. Sonic boom.
Created by: Easy80
Popular Physical Science 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