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WorksheetsIntroduction to Acoustics
Total questions: 20
Worksheet time: 10mins
What is a "medium" in Physics
When the sound wave goes in between two things
The material a wave travels through
A repeating disturbance that transfers energy over a distance
When air particles vibrate
Which of the following is a "medium" for sound waves?
Compression
Rarefaction
Air
Steel
Which medium will sound travel through the fastest?
Air
Metal
Water
Space
Fill in the blank: Sound Waves travel fastest through solids because the atoms are ___________ compared to atoms in liquids and gases
Closer together
Farther apart
Harder
Smaller
Fill in the blank: A sound that is 40 dB is _______ than a sound that is 10 dB
3 times louder
4 times louder
6 times louder
8 times louder
How does the decibel scale work?
+10 dB = +10 louder
x2 dB = +10 louder
+10 dB = x2 louder
x2 dB = x2 louder
Which color graph has the smallest amplitude
Blue
Orange
Green
Red
What is "frequency"?
Number of times wave repeats in image
Number of times wave repeats in 1 second
Length of one wave
How often the wave happens
Which graph has a longer wavelength?
Top graph
Bottom graph
Same wavelength
________is a science that deals with the production, control, transmission, reception, and effects of sound
Sound
Sound System
Acoustics
Sound Physics
Acoustics is classically divided into sound and _______
infrasonic waves
vibration
oscillation
ulfra-sonic waves
Hard surfaces, such as ceramic tile, gypsum board, or wood, tend to _______ sound waves, causing ‘echo’.
transmit
diffract
refract
reflect
____ is used to describe sound waves that are reflected off of surfaces
reflection
reverberation
vibration
oscillation
Dense, massive, materials, such as concrete or brick, tend to _______ sound waves through the material.
transmit
reflect
absorb
obstruct
Soft surfaces, such as textiles, and bath insulation, tend to _______ sound waves, preventing them from further motion
transmit
reflect
diffract
absorb
____ frequency sound waves are not capable of being transmitted through massive, heavy, material
low
medium
very low
high
____ frequency sound waves are transmitted through massive materials.
low
medium
very high
high
Vibration describes energy transmitted through denser materials such as wood, steel, stone, dirt, drywall or anything besides a _____
water
air
fluid
vacuum
Vibration is not heard as much as felt, due to its _______frequency
very high
very low
extremely low
extremely high
______is below the range of most human hearing
ultra-sonic
infra-sonic
super-sonic
