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Sound/EM waves

QuestionAnswer
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
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