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Waves

Physical Science Waves

TermDefinition
Amplification The strengthening of a wave when two crests meet. Often used to increase the intensity of a sound wave.
Acoustics The scientific study of sound/ the behavior of sound waves inside of a given space. (example: sound in an auditorium)
Decibel The unit of measure for the intensity or volume of sound. (dB)
Doppler Effect The change in perceived pitch that occurs when the source of sound or the observer of the sound is moving.
Intensity The amount of energy in a wave
Hertz The unit of measure for frequency. (Hz)
Pitch The quality of highness or lowness of sound due to frequency and wavelength.
Resonance When one object vibrating at the same natural frequency of a second object forces that second object into vibrational motion.
Vacuum A space containing little or no particles of matter
Amplitude The height of a wave from the medium's resting position
Wavelength A measure from crest to crest on a wave (or any point on the wave to the same point on the next wave)
Trough The lowest point of a wave
Crest The highest point on a wave
Mechanical wave A wave that requires a medium to transmit energy/ can be transverse or longitudinal (ex. sound wave)
Electromagnetic wave An E.M. wave is one that does not require a medium, but can move through a medium in order to transmit energy. EM waves are transverse waves.
Transverse waves A wave in which the medium moves perpendicular to the energy flow.
Longitudinal waves A wave in which the medium moves parallel to the energy flow.
Created by: lcrowe