Acoustics pt. 2

Question 1

TYPES OF SOUND?

Answer 1

WANTED and UNWANTED

Question 2

It is determined by how fast the sound producing objects vibrates?

Answer 2

Frequency

Question 3

Sound travels faster in denser media?

Answer 3

SPEED

Question 4

The unit which sound intensity is defined for
architectural purposes?

Answer 4

Decibel

Question 5

Instrument by which sound intensity is
measured?

Answer 5

Decibel-meter

Question 6

PROPERTIES OF SOUND?

Answer 6

SPEED, INTENSITY, SOUND PRESSURE, WAVELENGTH, LOUDNESS, THRESHOLD OF AUDIBILITY, THRESHOLD OF PAIN, FREQUENCY AND DIRECTIONALITY OF SOUND SOURCES

Question 7

NATURAL ELEMENTS THAT AFFECT SOUND?

Answer 7

TEMPERATURE, CLOUDS, WIND AND BODIES OF WATER

Question 8

CHARACTERISTICS OF SOUND?

Answer 8

SOUND REFLECTION, SOUND ABSORPTION, SOUND DIFFUSION, SOUND DIFFRACTION, SOUND REFRACTION, SOUND TRANSMISSION

Question 9

SOUND REFLECTION?

Answer 9

FLAT SURFACE, CONVEX SURFACE AND CONCAVE SURFACE

Question 10

sound dispersion?

Answer 10

CONVEX SURFACE

Question 11

sound concentration?

Answer 11

CONCAVE SURFACE

Question 12

uniform reflection?

Answer 12

FLAT SURFACE

Question 13

Sound reflected off a surface, usually one which is hard, rigid and / or flat?

Answer 13

SOUND REFLECTION

Question 14

Sound waves
absorbed into a material upon contact change of
sound energy into some other form?

Answer 14

SOUND ABSORPTION

Question 15

Occurs when sound
waves are dispersed equally in a room?

Answer 15

SOUND DIFFUSION

Question 16

Acoustical
phenomenon which causes sound waves to be
bent or scattered around such obstacles as
corners, columns, walls, beams, etc.?

Answer 16

SOUND DIFFRACTION

Question 17

Change of sound wave direction as it moves from one medium to another of different
density?

Answer 17

SOUND REFRACTION

Question 18

sound which penetrates through
surface?

Answer 18

SOUND TRANSMISSION

Question 19

TYPES OF SOUND TRANSMISSION?

Answer 19

FLANKING TRANSMISSION
AND DIRECT TRANSMISSION

Question 20

persistence of sound in an enclosure after the source of sound has stopped?

Answer 20

Reverberation

Question 21

Affected by the size of the space and the amount of reflective or
absorptive surfaces within the space?

Answer 21

Reverberation Time

Question 22

produce natural resonances that
can be heard as a pleasant
sensation or an annoying one.
waves’, where the physical length of
the wave is a multiple of the room
dimensions?

Answer 22

standing waves

Question 23

The difference between trapping and
diffusion is that trapping absorbs,
and diffusors scatter?

Answer 23

Sound Absorption & Diffusion

Question 24

also a type of
absorption, but is specifically
designed to absorb low-frequency
energy?

Answer 24

Bass trapping

Question 25

the scattering of sound energy using multi-faceted surfaces. Diffusers are commonly made of wood, plastic, or even polystyrene?

Answer 25

Diffusion

Question 26

acoustic energy absorbers which are designed to damp low frequency sound energy with the goal of attaining a flatter low frequency(LF) room response by reducing LF resonances in rooms?

Answer 26

Bass Traps

Question 27

Two types of bass traps?

Answer 27

resonating absorbers and porous absorbers

Question 28

a sound or combination of sounds that forms or arises from a Place?

Answer 28

soundscape