8.28.F - Test: Module Eight Flashcards
The cochlea is like a rolled-up triangle that allows us to hear what part of sound?
pitch
timbre
decibels
amplitude
osculation
acoustics
pitch
In the Bible, James tells us that we should not only be hearers of the Word but also ________ of the Word.
doers
Why can’t older folks hear the very low or high frequencies as well as teenagers? (Check all that apply.)
loss of fluid in the cochlea
loss of some of the sensitivity in their nerve endings
the size of the cochlea changes as people age
some of the tiny hairs in the ear fall out as people age
loss of some of the sensitivity in their nerve endings
some of the tiny hairs in the ear fall out as people age
Who was the first person to organize a Levitical choir?
Solomon
David
Moses
Samuel
Adam
Abraham
David
What do we call a wave in which the vibration of the medium is parallel to the direction the wave travels?
refractional
resonance
compressed
rarefaction
longitudinal
transverse
longitudinal
According to the Bible, who was the father of music?
Abraham
King Solomon
Jubal
King David
the Levites
Adam
Jubal
What is the metric unit for measuring the frequency of sound waves?
minutis
amps
watts
newtons
hertz
hertz
The loud explosive noise a plane makes when we hear the shock wave that comes from it when it is traveling at or above the speed of sound is called ______________.
refraction
the Doppler effect
a sonic boom
the sound barrier
amplitude
inertia
a sonic boom
Which of these would be the safest structure for you to enter during a thunderstorm?
metal storage building
under a deck
gazebo
house
carport
tree house
house
When two crests from two wave sources meet, what is it called?
ultracrest
antinode
trough
supercrest
anticrest
crest
supercrest
An antinode is _____________.
the part of a wave that does not move
the end of a wave
the beginning of a wave
the halfway point between nodes
the halfway point between nodes
What kind of interference do you get if you have two speakers playing music in a room where the crests meet?
dissonance
rarefaction
destructive
constructive
reflection
resonance
constructive
In Genesis 1:1, what is the first thing that God created and saw was good?
light
What do we call the radiation that allows us to see through the skin and visualize the bones?
ultraviolet rays
gamma rays
X-rays
microwaves
X-rays
What area of the electromagnetic radiation spectrum detects the energy our bodies release so that we can see people through walls with specialized cameras?
quasars
X-rays
infrared
gamma rays
infrared
What are the primary colors of light? (Choose all that apply.)
orange
indigo
yellow
blue
green
red
violet
blue
green
red
What do we call the vividness of a color?
saturation
luminance
diffraction
scattering
saturation
Technically, color consists of electromagnetic ___________.
waves
Which type of lighting source has lower energy costs and longer life but can be dangerous?
neon
fluorescent
laser
incandescent
fluorescent
Which lighting source became widely used in household and commercial lighting due to its low manufacturing costs?
neon
laser
fluorescent
incandescent
incandescent
One of the main disadvantages of incandescent lights is that _________.
they are expensive
the light they cast is hard on the eyes
only 10% of the energy makes light
they need extra sockets to be used in a normal house
only 10% of the energy makes light
Light produced when an object gets hot enough to glow is called ___________.
luminous
incandescent
transparent
laser
fluorescent
coherent
incandescent
_________ light is unique in that it vibrates mostly in one direction.
Polarized
Refracted
Diffracted
Reflected
Polarized
The only thing that distinguishes one light ray from another is its ___________.
wavelength
In the formula v = f , what measurement is used for the frequency of the wavelength?
amplitude
meters per second
hertz
time
hertz
Which animal can hear the lowest frequencies?
dog
bird
wolf
whale
whale
Which of these mediums will sound travel through the fastest?
iron
water
outer space
air
iron
At 140 decibels of sound, humans experience ____________.
peace
pain
music
joy
pain
What do we call the ability to bounce sound off an object and detect where and what that object is?
acoustics
reverberation
Doppler effect
echolocation
echolocation
The Doppler effect is used to figure out how __________ objects are moving in space.
fast
One practical use of echolocation is to measure the depth of the oceans. The device that is used to transmit the sound waves to the ocean floor is called _____________.
electromagnetic wave machine
electrolysis
sonar
radar
sonic boom
sonar
Visible light represents a very small portion of the electromagnetic spectrum. Radiation to the left in the image, such as microwaves, has longer wavelengths than visible light. Radiation to the right has shorter wavelengths than is observable.
Which type of radiation has a higher frequency than visible light?
infrared
microwave
X-ray
the frequency of all radiation is the same
X-ray
As we move through the visible spectrum, red to violet (right to left in the image), the wavelength __________ and the frequency ____________.
increases; decreases
increases; increases
decreases; increases
decreases; decreases
decreases; increases
According to the electromagnetic spectrum, gamma rays have the shortest wavelength. Therefore, gamma rays have ______________ frequency.
a random
the highest
an undetermined
the lowest
the highest
What are two sources of light? Please respond in 1–2 complete sentences using your best grammar.
Two light sources include a lightbulb and the sun.
What are the characteristics of sound? Please respond in 1–2 complete sentences using your best grammar.
The characteristics of sound include how it can travel through a medium, and without this medium, it would be like we were in space where there is no sound.
What measurements are necessary for calculating speed? Please respond in 1–2 complete sentences using your best grammar.
The measurement for calculating speed include distance and time.
