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Waves And Sound
Test Description: Waves and Sound
Instructions: Answer all questions to get your test result.
1) Sound waves travel fastest in
A
empty space
B
liquids
C
solids
D
gases
2) A wave that requires a medium is called
A
an electromagnetic wave
B
a surface wave
C
a mechanical wave
D
a transverse wave
3) What is the wave speed of a wave that has a frequency of 2 Hz and a wavelength of 2 cm?
A
4 cm/s
B
1 cm/s
C
4 m/s
D
1 m/s
4) The greater the density of a medium...
A
the faster the sound wave will travel
B
the slower the sound wave will travel
5) _________is how high or low a sound is perceived to be.
A
Pitch
B
Amplitude
C
Frequency
D
Loudness
6) As frequency decreases,
A
the pitch increases while the wavelength decreases
B
the pitch and the wavelength decrease
C
the pitch decreases while the wavelength increases
D
the pitch and the wavelength increase
7) Resonance occurs when
A
one object vibrates at the natural frequency of another object and causes it to vibrate as well.
B
the loudness is increased.
C
pitch changes from high to low.
D
there is an apparent change in frequency of a sound.
8) As the ambulance raced down the street towards you, the siren's pitch increased. As soon as the ambulance passed you, the pitch dropped. This is an example of
A
the resonance shift
B
Harrys Law
C
the Doppler Effect
D
loudness
9) The loudness of a sound wave is measured by
A
the pitch of the sound
B
the frequency of the wave
C
the amplitude (or amount of energy) of the wave
D
the wavelength
10) The most crowded regions of a longitudinal wave are called
A
rarefactions
B
compressions
C
troughs
D
crests
11) The number of complete wave cycles per second is a measure of the wave's
A
amplitude
B
wavelength
C
frequency
D
wave speed
12) All waves
A
can travel without a medium
B
transfer matter
C
transfer energy
D
require a medium
13) Waves in which the particles vibrate perpendicular to the wave direction are
A
transverse wave
B
longitudinal waves
C
surface waves
D
compressional waves
14) Waves in which the particles vibrate parallel to the wave direction are
A
transverse wave
B
longitudinal waves
C
surface waves
D
light waves
15) Waves that bounce off of a surface are
A
diffracted
B
reflected
C
refracted
D
interfered
16) When two waves overlap and create a wave with a larger amplitude/energy, _________ interference has occurred.
A
destructive
B
constructive
17) When two waves overlap and cancel each other out to make a wave with a smaller amplitude/energy, _________ interference has occurred.
A
constructive
B
destructive
18) An example of _________ is when light travels through a prism and all of the colors are displayed
A
diffraction
B
interference
C
refraction
D
reflection
19) This phenomenon occurs when waves are bent around a barrier or travel through an opening.
A
reflection
B
interference
C
refraction
D
diffraction
20) An opera singer who shatters glass while singing is an example of which interaction of sound?
A
Doppler Effect
B
resonance
*select an answer for all questions
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