Vocab

Question 1

The highness or lowness of a sound wave, which depends on the frequency of vibration

Answer 1

Pitch

Question 2

Sound intensity as sensed by the ear and interpreted by the brain; depends mainly on the pressure wave’s amplitude.

Answer 2

Loudness

Question 3

A logarithmic scale that measures amplitudes; depends on the ratio of the pressure variation in the most faintly heard sound, unit of measurements

Answer 3

Sound level

Question 4

The unit of measurement for sound level; also can festive the power and intensity of sound waves

Answer 4

Decibel

Question 5

The change in the frequency of sound caused by the movement of either the source, the detector, or both the source.

Answer 5

Doppler effect

Question 6

A resonating tube with one closed to air; it’s resonant with a sound source; it’s resonant frequencies are odd numbered multiples of the fundamental

Answer 6

Closed pipe resonator

Question 7

A resonating tube with both ends open that also will resonate with a sound source; it’s resonant frequencies are whole number multiples of the fundamental

Answer 7

Open pipe resonator

Question 8

For a musical instrument, the lowest frequency of sound that will resonate

Answer 8

Fundamental

Question 9

Higher frequencies, which are odd numbered multiples of the fundamental frequency give certain musical instruments their own unique timbre

Answer 9

Harmonics

Question 10

An unpleasant, jarring set of pitches

Answer 10

Dissonance

Question 11

A pleasant set of pitches

Answer 11

Consonance

Question 12

Beat the oscillation of wave amplitude that result from the super position of two sound waves with almost identical frequencies

Answer 12

Beat

Question 13

A pressure variation transmitted through matter as longitudinal wave; it reflects and interferences and has frequency, wavelength, speed, and amplitude

Answer 13

Sound wave