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Physical Science 8th > 8.25.F - Quiz: Waves that Affect Us > Flashcards

8.25.F - Quiz: Waves that Affect Us Flashcards

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1
Q

The cochlea is like a rolled-up triangle that allows us to hear what part of sound?
decibels
osculation
amplitude
timbre
acoustics
pitch

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

What is the part of the ear in the diagram that the number 9 is pointing toward?

vestibular nerve
cochlear nerve
semicircular canals
external auditory canal

A

semicircular canals

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4
Q

The range of pitches that humans can hear is limited due to the small size of our ______.
malleus
external auditory canal
tympanic membrane
cochlea

A

cochlea

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5
Q

Why can’t older folks hear the very low or high frequencies as well as teenagers? (Check all that apply.)
some of the tiny hairs in the ear fall out as people age
the size of the cochlea changes as people age
loss of fluid in the cochlea
loss of some of the sensitivity in their nerve endings

A

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

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6
Q

What were the first two musical instruments mentioned in the Bible?
cornet
oboe
bell
trumpet
tambourine
lyre
pipe

A

lyre
pipe

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7
Q

Who was the first person to organize a Levitical choir?
Samuel
Abraham
Adam
Solomon
David
Moses

A

David

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8
Q

What do we call waves that cause a medium to vibrate at right angles to the direction in which the wave travels?
vector
rarefaction
longitudinal
refracted
transverse
compressed

A

transverse

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9
Q

Resonance occurs when one vibrating object transfers energy to a second object, causing it to vibrate. The energy transfer is most efficient when the second object has the same ________.
refraction
frequency
Doppler effect
speed
diffraction
amplitude

A

frequency

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10
Q

When measuring the amplitude of a wavelength, at what point of the chart do you start measuring?
transverse
crest
trough
reflection
midpoint
rarefaction

A

midpoint

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11
Q

What do we call the speed of an object in a particular direction?
sonic boom
acceleration
amplitude
transverse wave
Doppler effect
velocity

A

velocity

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12
Q

What is the metric unit for measuring the frequency of sound waves?
amps
newtons
hertz
watts
minutis

A

hertz

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13
Q

Select two things that lightning travels through.
wires
dirt
plumbing
cardboard
sand
wood
carpet

A

wires
plumbing

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14
Q

The shock waves during a supersonic boom are formed by _________.
the plane bending sound waves
air that can’t get out of the way fast enough
the speed of the plane
high air speeds
low air speeds
the material the plane is made from

A

air that can’t get out of the way fast enough

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15
Q

If a sound wave is moving toward your ear with a velocity of 5.0 m/s, and its frequency is 2.5 hertz, what is its wavelength?
2 meters
1.5 meters
2.5 meters
11 meters
1.1 meters
1 meter

A

2 meters

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16
Q

What do we call it when a transverse wave overtakes another wave, and the force of both waves is added together in a larger wave?
constructive interference
a longitudinal wave
rarefaction
destructive interference
resonance
a compressed wave

A

constructive interference

17
Q

If you have two speakers in a room with the same sounds at the same frequency, what amplitude would you have?
3 X the loudness
no sound
1/2 the loudness
2 X the loudness
1.5 X the loudness
the same loudness

A

2 X the loudness

18
Q

What famous scientist mistakenly stated that light was not a wave because he couldn’t see constructive and destructive interference?
Ampere
Galileo
Newton
Young
Joule
Hahn

A

Newton

19
Q

What allows us to hear the loudness of a sound?
the wave movement from crest to trough and back again
when the wave hits its trough
when it is a constructive wave
when the wave hits its crest
when it is a standing wave
when the wave hits its midpoint

A

the wave movement from crest to trough and back again

20
Q

Plucking a guitar string and watching the string vibrate with the wave appearing not to move down the string is a good example of __________.
destructive interference
a longitudinal wave
a standing wave
rarefaction
constructive interference
a compressed wave

A

a standing wave

Physical Science 8th (30 decks)

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