Physics 1138 Checkup A

The range for human hearing is ___ Hz to _______ Hz.

20, 20,000

Speed formula for temperature

331 + (T x .61)

______________ sounds have a bitch below ___ Hz.

Infrasonic, 20

_________ and _______________ are synonymous.

Pitch, frequency

_____________ sounds have a pitch above __________ Hz.

Ultrasonic, 20,000

maximum displacement in either direction

amplitude

wave crosses axis moving toward crest

ascending node

measurement of sound intensity

bel

region of higher air pressure

compression

wave crosses axis moving toward trough

descending node

number of waves per second

frequency

An increase in temperature _____________ the speed of sound.

increase

disturbance in same direction as wave motion

longitudinal wave

Some media conduct sound waves better than others because some _________ are more ___________ than others and _________ _______ travel _________ in them because of their _____________.

media, elastic, sound waves, better, elasticity

The __________ of a wave will affect its speed.

medium

Sound intensity is the ___________ of __________ passing through ___ ___________ ____________ of ______ each __________.

quantity, energy, one, square, centimeter, area, second

region of reduced air pressure

rarefaction

distance can be solved as

s = v x t

disturbances in a fluid or solid

sound

Sound travels fastest in ________.

steel

Standard speed formula

v = f x λ

speed at which a disturbance travels through its medium

wave speed

distance between relative points on separate waves

wavelength