Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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

Unit 5 Vocab

Waves and Light Unit 5 Vocab

Wave a disturbance that transfers energy from one place to another.
medium the material through which a wave travels
longitudinal wave particles move back and forth in the same direction that the wave travels, or parallel to the wave
transverse wave The springs coils move up and down as the wave passes. Example: moving a slinky up and down
mechanical waves Waves that require a medium. Earthquakes are an example of this.
electromagnetic waves disturbances in electric and magnetic fields. Examples are radio waves and microwaves
amplitude the measure of how far particles in the medium move away from their normal rest position. Example: The "height of the crest".
wavelength the distance over which the wave's shape repeats or "the cycle".
wave period the time required for one cycle of the wave to be completed.
frequency it is the amount of cycles that occur in an amount of time.
Hertz it is the unit of measurement for waves
wavefronts Waves that spread out in a circular patter. The peaks can be drawn as shapes, such as circles or spheres.
wave speed the speed at which a wave travels.
radiation the transfer of energy as Electromagnetic waves or EM waves.
electromagnetic (EM) spectrum the range of frequencies (or wavelengths) that an EM wave can have.
infrared or IR, is also known as "Visible Light". It has slightly longer wavelengths than red light.
ultraviolet or UV, light has slightly shorter wavelengths than violet light.
transparent matter that transmits light. "you can see through it".
translucent materials transmit light but do not let the light travel straight through. "Frosted glass".
opaque materials do not let any light pass through them. A black t shirt is an example of this.
absorption the transfer of light energy to matter. Light enters the object but does not leave. Example is a black hole in space
reflection the bouncing of light off a surface. Example is a mirror
refraction the change in direction of a wave as it passes from one medium into another at an angle.
scattering when light is sent in many directions as it passes through a medium. A light shining through fog is an example of this.
Created by: PeaceScience