physics

A closed pipe resonator is closed on both ends

false

A pressure antinode in a sound wave is a region of high pressure, while a pressure node is a region of low pressure

false

All hollow tubes behave as open pipe resonators

false

Because of the Doppler Effect, an observer will hear a sound moving away from her as being higher in pitch

false

In a sound wave, the wavelength is equivalent to the distance from a region of high pressure to the region of mean pressure.

false

Sound travels faster on a cold day than a warm day

false

Sound waves will travel faster on a dry day than on a humid day of the same temperature.

false

The decibel scale is based on the differences in wave length of various sound

false

The longest wavelength that can resonate in an open pipe resonator is four times the length of the pipe

false

A closed pipe resonator can produce sounds that have a wavelengths that are four times the length of the pipe

true

A moving source tends to compress the sound waves in the direction it is moving

true

A string clamped at both ends can resonate at any half-wavelength interval

true

All sound waves are produced by vibrating particles.

true

Sound waves will travel faster through a wooden table than through air

true

The differences in air pressure that create a sound wave are the result of differences in velocities of air particles

true

The fundamental frequency of a pipe is the lowest resonant frequency

true