Physics B Final Review Day 3

When an air column vibrates in a pipe that is open at both ends,

Which of the following is a region in which the density and pressure are greater than normal?

When the frequency of a force applied to a system matches the natural frequency, __ occurs.

What unit is used to express the intensity of sound?

A source of sound will have a __ relative pitch as it approaches you.

Of the following sound travels fastest through

What length of string would have a fundamental frequency of 1250 Hz if traveling at 488 m/s?

If a guitar string has a fundamental frequency of 500 Hz, what is the 2nd harmonic?

Intensity of a sound increases from 1.0x10^-4 to 1.0x10^-3 , the decibel level goes from 80dB to

Audible beats are formed by the interference of two waves

Sound that falls between 20 Hz and 20 000 Hz is classified as

The Doppler effect occurs with

How many nodes are present in a string vibrating at its fundamental frequency?

The perceived loudness of a sound is measured in

Musical instruments of different types playing the same note may often be identified by their

How much power is given off if the intensity of sound is 4.6x10^-3 W/m² at a distance of 18 m?

The decibel level at the threshold of hearing is

Frequencies below 20 Hz

The highness and lowness of a sound is perceived as

At a distance of 3 m, the intensity of sound will be__ the intensity at 1m.

Sound waves are