sound-Beyer Flashcards

16311654880	REFLECTION	Energy waves bouncing off surface of an object (mirrors or echoes return energy back to their source)	0
16311654881	ECHO	Reflected sound wave	1
16311654882	LOUDNESS	Characteristic of sound produced by amplitude (intensity) of sound wave.	2
16311654883	PITCH	Perceived highness and lowness of a sound, depending on frequency of the waves	3
16311654884	FREQUENCY	Number of vibrations occurring in a 1 second interval	4
16311654885	COMPRESSION	Part of a longitudinal wave where the particles of the medium are close together	5
16311654886	RAREFACTION	Part in a longitudinal wave where particles are spread apart	6
16311654887	INTERFERENCE	When two waves meet while traveling along same medium	7
16311654888	DIFFRACTION	Occurs when an object causes a wave to change direction and bends around it	8
16311654889	SPEED OF SOUND	depends on state of matter and temperature of medium	9
16311654890	AMPLITUDE	Loudness, for a wave, measures energy in a wave	10
16311654891	LONGITUDINAL (Compressional) WAVE	Wave that causes particles of medium to vibrate parallel to direction the wave travels	11
16311654892	VIBRATION	Repeated back and forth or up and down motion.	12
16311654893	HERTZ	unit of frequency	13
16311654894	MEDIUM	Substance through which a wave can travel (Railroad workers put their ear to track to listen for oncoming trains)	14
16311654896	High pitch	High frequency	15
16311654897	Low Pitch	Low frequency	16
16311654898	Increase in frequency	Caused by decrease in wavelength	17
16311654899	Doppler Effect	A change in sound frequency caused by motion of the sound source, motion of the listener, or both.	18
16311654900	sound	A disturbance that travels through a medium as a longitudinal wave; caused by vibrations	19
16311654901	mechanical wave	a wave that requires a medium through which to travel	20