Define pitch, loudness, intensity, infrasonic, ultrasonic, audible, intensity, 8. Enumerate the fctors affecting the speed of .
Answers
PITCH: the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.
INTENSITY:the quality of being intense. eg,strength, power.
LOUDNESS: In acoustics, loudness is the subjective perception of sound pressure. More formally, it is defined as, "That attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud."
INFRASONIC:relating to or denoting sound waves with a frequency below the lower limit of human audibility.
ULTRASONIC:ultrasonic
of or involving sound waves with a frequency above the upper limit of human hearing.
AUDIBLE:able to be heard
8.In air: Wind can increase or decrease the speed, and can even push sound waves sideways. Air density affects it. Temperature, pressure, humidity and gas mixture can each affect the density. In liquid: The speed of sound is affected by density and viscosity.