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 and light

sound energy energy caused by vibrating particles in matter
pitch the highness or lowness of a sound
frequency the number of vibrations that occur in a unit of time
volume the loudness of a sound
tuba instrument with a low pitch and low frequency
flute instrument with a high pitch and a high frequency
medicine, entertainment, every day uses, and exploration ways we use sound
gas sound travels the slowest in which state of matter
decibels volume is measured in this unit
85 dB if sound reaches this number of decibels, it can be damaging to your ears
wave a disturbance that transmits energy
waves sound travels in this way
light form of energy that moves in waves and can travel through space
electromagnetic spectrum a range of light organized by frequency and wavelength
opaque absorbs most light.... no light passes through it
wood, stone, metal materials that are opaque
transparent absorbs very little light... most light passes through it
clear glass, air, pure liquid water materials that are transparent
translucent absorbs a little light... little light passes through it
frosted glass, ice, wax paper materials that are translucent
prism a transparent material that bends and separates white light into the colors of the rainbow
reflection the bouncing of light waves that reverses the image
refraction the bending of light waves
straight lines the way that light travels
Popular Science 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