Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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
remaining cards
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:
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

Science Vocab Ch. 4

Waves, Light, and Sound; Lessons 1 - 3

Mechanical Wave A wave that travels only through matter is a ...
Electromagnetic Wave A wave that can travel through empty space or through matter is an ...
Transverse Wave A wave in which the disturbance is perpendicular to the direction the wave travels is a ...
Longitudinal Wave A wave that makes the particles of a medium move back and forth parallel to the direction the wave travels is a ...
Frequency The number of wavelengths that pass a point each second is a wave's ...
Amplitude A wave's ... is the maximum distance a wave varies from its rest position.
Refraction The change in direction of a wave as it changes speed, moving from one medium into another, is called ...
Radio Wave A low-frequency, low-energy electromagnetic wave that has a wavelength longer than about 30 cm is called a ...
Infrared Wave An electromagnetic wave with a wavelength shorter than a microwave but longer than light is an ...
Ultraviolet Wave An electromagnetic wave with a slightly shorter wavelength and higher frequency than light is an ...
Transparent A material that allows almost all of the light striking it to pass through, and through which objects can be seen clearly is ...
Translucent A material that allows most of the light that strikes it to pass through, but through with objects appear blurry is ...
Opaque A material which through light does not pass is ...
Intensity ... is the amount of energy that passes through a square meter of space in one second.
Compression A ... is the region of a longitudinal wave where the particles of the medium are closest together.
Rarefaction A ... is the region of a longitudinal wave where the particles are farthest apart.
Pitch The perception of how high or low a sound seems is called ...
Decibel (dB) The unit used to measure sound intensity or loudness, is the ...
Created by: stemljos4017