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WorksheetsEye anatomy and Acoustic
Total questions: 17
Worksheet time: 2hrs 35mins
Pupil
Sclera
Cornea
Human lens
Temporarily Blind
Blindness
Eye
Astigmatism
Photoreceptors that detect colour are called
Cones
Rods
Nearsightedness is also known as
Myopia
Hyperpopia
Presbyopia
none of the above
Colorblindness
Myopia
Hyperopia
Glaucoma
myopia
hyperopia
astigmatism
presbyopia
The nerve that carries the nerve impulses from the eye to the brain.
nerve impulse
optic nerve
auditory nerve
motor nerve
One important characteristic of sound waves is that they are ___________________ waves.
mechanical
short
ultraviolet
primary
Sound waves must travel through ___________________.
air
a medium
an outward area
a short
If there is a loud noise in space, the sound travels through
the space particles
small atoms in space
space is a vacuum, so nothing
A sound source is moving to the right as in the image shown. Compared to the sound made when the source is stationary, the sound you would hear at Position #2 would be ...
higher in pitch.
lower in pitch.
louder.
the same.
A sound source is moving to the right as in the image shown. Compared to the sound made when the source is stationary, the sound you would hear at Position #1 would be ...
higher in pitch.
lower in pitch.
quieter.
the same.
What is the unit that is used to measure the intensity of sound?
decibel
frequency
Hertz
wavelength
Humans can hear between
1-10hz
0-100 hz
8am-10pm
20-20,000 hz
A siren frequency often shifts up when it is coming towards you, and shifts down as it moving away from you. This is an example of the
Subsonic Effect
Doppler Effect
Supersonic Motion
Decibel Effect
longitudinal wave that can only travel through matter (a)
when particles in a wave are packed closely together (b)
when particles in a wave are spread apart (c)
the perception of how high or low a sound seems (d)
when a sound wave is reflected (e)
What is the loudness of a sound, in dB, that is produced with 10-² W/m²?
Intencity of reference = 10-¹² W/m².
dB = 10.log (I/I ref)
60 dB
100 dB
140 dB
120 dB
