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

Noah Vega

Ch. 17 & 18

periodic motion any motion that repeats at regular time intervals.
period the time required for one complete cycle of periodic motion.
frequency the number of complete cycles per unit time of periodic motion.
hertz the unit of measure for frequency, equal to one cycle per second.
wavelength the distance between a point on a wave and the same point on the next cycle of the wave.
reflection the interaction that occurs when a wave bounces off a surface it cannot pass through.
refraction the bending of a wave as it enters a new medium at an angle.
diffraction the bending of a wave as it moves around an obstacle or passes through a narrow opening.
interference the interaction of two or more waves that combine in a region of overlap.
constructive interference the interaction among two or more waves in which displacements combine to produce a wave with a larger displacement.
destructive interference the interaction among two or more waves in which displacements combine to produce a wave with smaller displacement.
standing wave a wave that appears to stay in one place and does not seem to move through a medium.
node a point on a standing wave that has no displacement from the rest position.
antinode a point of maximum displacement midway between two nodes in a standing way.
electromagnetic waves a transverse wave consisting of changing electric and changing magnetic fields.
electric field a field in a region of space that exerts electric forces on charged particles; a field produced by electric charges or by changing magnetic fields.
magnetic field a field in a region of space that exerts magnetic forces.
electromagnetic radiation the transfer of energy by electromagnetic waves.
photoelectric effect the emission of electrons from a metal caused by light striking the metal.
photons a packet of electromagnetic energy.
intensity the rate at which a wave's energy flows through given unit of area.
electromagnetic spectrum a full range of electromagnetic radiation.
amplitude the maximum displacement of a medium from the rest position.
modulation ggggggg
frequency modulation a method of transmitting a radio signal in which the frequency of the carrier wave varies while its amplitude remains the same.
thermograms a color coded picture using variation in infrared radiation to show changes in temperature.
mechanical wave a disturbance in matter that carries energy from one place to another
medium the material through which a wave travels
transverse wave
longitudinal wave
surface wave
Created by: noahavega