Physical Science Chapter 11

the change in the course of a wave as a result of a collision with an object is called

change in a wave's direction when passing from one substance into another

a sound of definite pitch, produced by a singing voice or a musical instrument, is

the set of frequencies at which an object vibrates are its natural frequencies

the length of a wave is the

sound with frequency below the range of human hearing is ____ sound

what is the SI unit of frequency

a periodic back-and-forth motion that transmits energy is a wave.

sound heard distinctly after being reflected from an object

which family of instruments includes the trumpet and tuba

the maximum distance that particles are displaced by a wave is the wave's

the time needed for one wave to pass is the wave's

when two notes interfere harmoniously, the result is known as

the most dominant sound produced when a musical instrument plays a single note is the

the process of dissipating the energy of sound waves in matter is

a system that uses sound to detect underwater objects is

the spreading out of a wave after it passes through a narrow opening is called

a change in the sound frequency caused by an object's motion is the

edge tones sounds produced by a musical instrument at higher frequencies than the fundamental

a musical instrument's distinctive sound quality is its pitch

sound that can be heard is ___ sound

sound that occurs when a lip in the path of a flow of air causes regular pulses of compression

which family of instruments are played by being struck

the number of waves that pass a given point per unit time is the wave's

what is random sound with no intended pattern

what is the versatile and widely played instrument in modern times?

effect of sound-wave strength on the way the human ear perceives sound

family of instruments in which pitch is varied by opening and closing holes in a tube is brass

the law of reflection states that the angle of incidence is __ the angle of reflection

the frequency relationships between the fundamental and overtones are described by the

violent compression pulse caused by an object moving faster than the speed of sound

name the two kinds of wave interference

sound that occurs when a lip in the path of a flow of air causes regular pulses of compression

hollow body that reverberates sound waves produced by an instrument to make the sound louder

strength of a sound wave

the effect of frequency on the way our ear perceives sound is loudness.

sound that occurs when a lip in the path of a flow of air causes regular pulses of compression

loud noise caused by a shock wave

in music, the distance between two notes is called an

the mutual reinforcement or cancellation that occurs when two or more waves meet is

when a driving frequency and a natural frequency are the same or nearly the same, they are in

the substance through which a wave transfers energy called

the unit used to measure sound intensity in a way that reflects how our ears perceive sound is

a series of organized sound waves with specific pitches that have been deliberately arranged

difference in pitch between a note and a second note has twice the frequency of the first note

sound that occurs when a lip in the path of a flow of air causes regular pulses of compression

phenomenon is vibrations traveling through a medium in the form of longitudinal pressure waves

multiple reflections causing a persistence of sound not heard as separate sounds