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Introduction To Waves
Test Description: Mechanical Waves
Instructions: Answer all questions to get your test result.
1) Pitch is measured in
A
amplitudes
B
hertz
C
decibels
D
watts
2) Higher frequencies produce ___ pitches.
A
higher
B
lower
3) When the energy of a wave doubles,
A
frequency is cut in half
B
frequency also doubles
4) Sound waves are longitudinal waves that can travel only through matter
A
true
B
false
5) When the particles are closest together in a longitudinal wave, that is called a
A
trough
B
rarefaction
C
crest
D
compression
6) When solids or liquids cool down, sound travels ___ through them.
A
faster
B
slower
7) The more dense a medium,
A
the slower the sound will travel through it
B
the faster the sound will travel through it
8) Which part of the ear transforms sound waves into nerve impulses?
A
the eardrum
B
the cochlea
C
the anvil
D
the ear canal
9) The middle ear's job is to
A
collect sound
B
all of the above
C
amplify sound
D
transmit sound to the brain
10) The passage of a wave through a medium is
A
diffraction
B
absorbtion
C
diffusion
D
transmission
11) A sound wave strikes a barrier. It bounces off at an angle larger than the angle it struck the barrier at.
A
false
B
true
12) The bouncing of a wave off a surface
A
reflection
B
diffusion
C
refraction
D
transmission
13) Waves that cause the particles in a medium to move parallel to the direction that the wave travels.
A
transverse waves
B
mechanical waves
C
longitudinal waves
14) Which can mechanical waves NOT travel through?
A
solids
B
empty space
C
liquids
D
gases
15) Matter is transferred when a wave travels.
A
true
B
false
16) Wavelength decreases as frequency increases.
A
true
B
false
17) The outer ear
A
amplifies sound
B
transfers sound waves to the brain
C
collects sound
18) Which is NOT a bone in the middle ear?
A
anvil
B
bow
C
stirrup
D
hammer
19) The change in direction of a wave when it travels by the edge of an object or through an opening
A
diffraction
B
amplitude
C
diffusion
D
transmission
20) All sound waves that travel through a medium are absorbed.
A
false
B
true
*select an answer for all questions
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