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 8 Ch 17

Waves, Sound, and Light

The mass per cubic meter of a substance Density
A disturbance that carries energy through matter or space. Wave
Mechanical wave that causes particles in matter to move at right angles to the direction the wave travels. Transverse wave
Mechanical wave that causes particles in matter to move back and forth along the direction the wave travels. Compressional wave
Distance between one crest or compression on a wave and the next one moving with the same speed and direction. Wavelength
Number of wavelengths that pass a given point in one second, measured in hertz (Hz). Frequency
When a wave is reflected, the angle of incidence is equal to the angle of reflection. Law of Reflection
The change in direction of a wave as it travels from one material to another. Refraction
Bending of waves around an object. Diffraction
A recognition, sense, or understanding of something. Perception
Amount of energy a wave carries past a certain area each second. Intensity
The human perception of the frequency of sound. Pitch
Repeated echoes of sound waves. Reverberation
A range of values or properties. Spectrum
Waves that can travel through matter or empty space. Electromagnetic waves
Complete range of electromagnetic wave frequencies and wavelengths. Electromagnetic spectrum
Heat energy is transmitted through these waves. Infrared waves
Electromagnetic waves that can cause damage to the eyes and skin. Ultraviolet waves
Created by: rwaters