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

Sound/EM waves

Pitch How high or low a sound seems.
Loudness Perception of sound volume based on sound intensity.
Frequency Number of waves that pass a point per second.
Amplitude Size of the disturbance of a wave.
Doppler Effect Change in wave frequency due to the source moving relative to the observer.
Electromagnetic Wave Waves caused by vibrating electric charges.
Photon Bundle of energy (no mass) that behaves like a particle.
Electromagnetic Spectrum Radio waves > Microwaves > Infrared > Visible > Ultraviolet > X-rays > Gamma **Listed from greatest to least wavelength .AND least to greatest frequency
Radio wave Wavelength > 10 cm (0.1 m) **Long wavelength, low frequency **Used for communications & medial imaging.
Microwave Wavelength 0.1 mm - 30 cm **Used for microwave ovens, cell phones & satellite signals.
Infrared Wave Wavelength 1x10^-6 m - 0.001 m **Transmit thermal (heat) energy and used in TV remote controls.
Visible Light Small range of wavelengths that we can see (colors: ROYGBIV).
Ultraviolet Wave Wavelength shorter than visible light **CAN penetrate skin so both beneficial and harmful.
X-ray Shorter than UV waves **Used to scan people, luggage, etc.
Gamma ray Shorter than X-rays **High Frequency, short wavelength **Used in cancer treatment (radiation).
Created by: a.weis