ACOUSTICS PRELIM-MIDTERM 2A

The sensation of sound as a result of vibrations in the air caused by pressure fluctuations.

• Acoustics

• Hearing

• Sound Waves

• The Sound Theory

Sound that propagates in the medium in the form of compression and rarefaction.

• Transverse Waves

• Longtitudinal Waves

• Reverberation

• Sound Refraction

A wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.

• Transverse Wave

• Longtitudinal Waves

• Reverberation

• Sound Waves

sometimes referred to as pitch, is the number of times per second that a sound pressure wave repeats itself.

• Oscillation

• Reverberation

• Frequency

• Intensity

Given a distance of 500 meters and time recorded of 2 seconds, compute the Speed/Velocity of sound.

• 250 kms

• 250 hz.

• 250 dB

• 250 m/s

______________ of a sound is the distance between adjacent identical parts of a wave.

• Intensity

• Amplitude

• Wavelength

• Frequency

device that measures how well a person can hear certain sounds.

• Decibel Meter

• Sound Propagation

• Sound Recoder

• Audio Meter

The inverse square law can predict the Frequency at a given distance from the sound source.

• True

• False

The power or energy of a soundwave

• Vibration

• Volume

• Loudness

• Intensity

the amount of sound energy absorbed by the acoustic material, when sound wave incident upon it. It is a measure of how much sound is absorbed by a material or object.

• Sound Absorption Factor

• Total Reflection Absorption

• Sound Absorption Coefficient

• Sound Absorbent Coefficient