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Physical Science 8th > 8.28.F - Test: Module Eight > Flashcards

8.28.F - Test: Module Eight Flashcards

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1
Q

The cochlea is like a rolled-up triangle that allows us to hear what part of sound?

pitch
timbre
decibels
amplitude
osculation
acoustics

A

pitch

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2
Q

In the Bible, James tells us that we should not only be hearers of the Word but also ________ of the Word.

A

doers

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3
Q

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

A

loss of some of the sensitivity in their nerve endings
some of the tiny hairs in the ear fall out as people age

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4
Q

Who was the first person to organize a Levitical choir?

Solomon
David
Moses
Samuel
Adam
Abraham

A

David

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5
Q

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

A

longitudinal

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6
Q

According to the Bible, who was the father of music?

Abraham
King Solomon
Jubal
King David
the Levites
Adam

A

Jubal

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7
Q

What is the metric unit for measuring the frequency of sound waves?

minutis
amps
watts
newtons
hertz

A

hertz

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8
Q

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

a sonic boom

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9
Q

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

A

house

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10
Q

When two crests from two wave sources meet, what is it called?

ultracrest
antinode
trough
supercrest
anticrest
crest

A

supercrest

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11
Q

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

A

the halfway point between nodes

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12
Q

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

A

constructive

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13
Q

In Genesis 1:1, what is the first thing that God created and saw was good?

A

light

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14
Q

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

A

X-rays

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15
Q

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

A

infrared

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16
Q

What are the primary colors of light? (Choose all that apply.)

orange
indigo
yellow
blue
green
red
violet

A

blue
green
red

17
Q

What do we call the vividness of a color?

saturation
luminance
diffraction
scattering

A

saturation

18
Q

Technically, color consists of electromagnetic ___________.

A

waves

19
Q

Which type of lighting source has lower energy costs and longer life but can be dangerous?

neon
fluorescent
laser
incandescent

A

fluorescent

20
Q

Which lighting source became widely used in household and commercial lighting due to its low manufacturing costs?

neon
laser
fluorescent
incandescent

A

incandescent

21
Q

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

A

only 10% of the energy makes light

22
Q

Light produced when an object gets hot enough to glow is called ___________.

luminous
incandescent
transparent
laser
fluorescent
coherent

A

incandescent

23
Q

_________ light is unique in that it vibrates mostly in one direction.

Polarized
Refracted
Diffracted
Reflected

A

Polarized

24
Q

The only thing that distinguishes one light ray from another is its ___________.

A

wavelength

25
Q

In the formula v = f , what measurement is used for the frequency of the wavelength?
amplitude
meters per second
hertz
time

A

hertz

26
Q

Which animal can hear the lowest frequencies?

dog
bird
wolf
whale

A

whale

27
Q

Which of these mediums will sound travel through the fastest?

iron
water
outer space
air

A

iron

28
Q

At 140 decibels of sound, humans experience ____________.

peace
pain
music
joy

A

pain

29
Q

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

A

echolocation

30
Q

The Doppler effect is used to figure out how __________ objects are moving in space.

A

fast

31
Q

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

A

sonar

32
Q

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

A

X-ray

33
Q

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

A

decreases; increases

34
Q

According to the electromagnetic spectrum, gamma rays have the shortest wavelength. Therefore, gamma rays have ______________ frequency.

a random
the highest
an undetermined
the lowest

A

the highest

35
Q

What are two sources of light? Please respond in 1–2 complete sentences using your best grammar.

A

Two light sources include a lightbulb and the sun.

36
Q

What are the characteristics of sound? Please respond in 1–2 complete sentences using your best grammar.

A

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.

37
Q

What measurements are necessary for calculating speed? Please respond in 1–2 complete sentences using your best grammar.

A

The measurement for calculating speed include distance and time.

Physical Science 8th (30 decks)

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