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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
gases
D
solids
2) A wave that requires a medium is called
A
a surface wave
B
a transverse wave
C
an electromagnetic wave
D
a mechanical 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 m/s
B
1 cm/s
C
4 cm/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
Amplitude
B
Frequency
C
Pitch
D
Loudness
6) As frequency decreases,
A
the pitch increases while the wavelength decreases
B
the pitch and the wavelength increase
C
the pitch decreases while the wavelength increases
D
the pitch and the wavelength decrease
7) Resonance occurs when
A
the loudness is increased.
B
there is an apparent change in frequency of a sound.
C
pitch changes from high to low.
D
one object vibrates at the natural frequency of another object and causes it to vibrate as well.
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 Doppler Effect
B
the resonance shift
C
loudness
D
Harrys Law
9) The loudness of a sound wave is measured by
A
the wavelength
B
the frequency of the wave
C
the amplitude (or amount of energy) of the wave
D
the pitch of the sound
10) The most crowded regions of a longitudinal wave are called
A
compressions
B
crests
C
rarefactions
D
troughs
11) The number of complete wave cycles per second is a measure of the wave's
A
frequency
B
amplitude
C
wave speed
D
wavelength
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
compressional waves
C
surface waves
D
longitudinal waves
14) Waves in which the particles vibrate parallel to the wave direction are
A
light waves
B
transverse wave
C
surface waves
D
longitudinal waves
15) Waves that bounce off of a surface are
A
interfered
B
diffracted
C
refracted
D
reflected
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
refraction
B
interference
C
diffraction
D
reflection
20) An opera singer who shatters glass while singing is an example of which interaction of sound?
A
resonance
B
Doppler Effect
*select an answer for all questions
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