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9th Phy. Sci Test 5

Horizontales
A periodic back-and-forth motion that transmits energy
What term describes a situation in which a driving frequency on an object is the same as or nearly the same as one of the object's natural frequencies
The study of sound
What term refers to sound that has too low a frequency to be heard
Which type of wave has particles of the transmitting medium oscillating at right angles to the direction of wave travel
What is the effect of intensity on the way the human ear perceives sound
The relationship between the angle of incidence and angle of reflection is
What is a random sound with no intended pattern
What technique uses the reflection of sound to calculate distance
The portion of a wave in which the particles are spread out
What is the substance through which a wave transfers its energy
Number of waves that pass a point per unit time
What is the low point of a wave
Musical distance between two notes
The effect of frequency on the way our ear perceives sound
Verticales
The set of frequencies at which an object vibrates are ? frequencies
What is the bending of the path of a wave as a result of a change in wave speed
What is the result when two notes interfere harmoniously
What is the reinforcement or cancellation that occurs when two or more sound waves meet
Perpendicular line from which reflection is measured
High point of a wave train
The process of dissipating the energy of sounds waves in matter
A change in frequency caused by an object's motion
Strength of a sound wave
Maximum distance particles are displaced in a wave train
The speed of a wave is ? proportional to frequency