Abeka Physical Science (ver 1) Test 8 Study

In music, the distance between two notes is called a(n) ______

The length of a wave is the ______

What are one of the kinds of interference?

Which family of instruments includes the trumpet and the tuba?

Sound heard distinctly after being reflected from an object

What is random sound with no intended pattern

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

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

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

When two notes interfere harmoniously, the result is known as ______

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

What is a hollow body that reverberates sound waves produced by an instrument to make the sound louder?

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

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

The spreading out of a wave after it passes through a narrow opening is called _____?

The process of dissipating the energy of sound waves in matter

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

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

A musical instrument's distinctive sound quality is its ______

Which family of instruments are played by being struck?

What is the difference in pitch between a note and a second note that has twice the frequency of the first note?

The law of reflection states that the agle of incidence is ______ the angle of reflection

A system that uses sounds to detect underwater objects

The effect of frequency on the way our ear perceives sound is _____

The family of instruments in which pitch is varied by opening and closing holes in a tube is the _____

What is the SI unit of frequency

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

Loud noise caused by a shock wave

Strength of a sound wave

Change in a wave's direction when passing from one substane into another

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

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

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

The set of frequencies at which an object vibrates are its _______ frequencies

A periodic back-and-forth motion that transmits engergy

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

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

What is the most versatile and widely played instrument in modern times?

Sounds produced by a musical instrument at higher frequencies than the fundamental are called _______

Sounds with frequency below the range of human hearing is _____ sound

The frequency relationships between the fundamental and overtone are described by the ______

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

What is the substance through which a wave transfers energy called?

The sound that occurs when a lip in the path of a flow of air causes regular pulses of compression, as in an organ pipe