Introduction To Waves Question Preview (ID: 62491)


Mechanical Waves. TEACHERS: click here for quick copy question ID numbers.

Pitch is measured in
a) hertz
b) amplitudes
c) decibels
d) watts

Higher frequencies produce ___ pitches.
a) higher
b) lower
c)
d)

When the energy of a wave doubles,
a) frequency also doubles
b) frequency is cut in half
c)
d)

Sound waves are longitudinal waves that can travel only through matter
a) true
b) false
c)
d)

When the particles are closest together in a longitudinal wave, that is called a
a) compression
b) crest
c) trough
d) rarefaction

When solids or liquids cool down, sound travels ___ through them.
a) faster
b) slower
c)
d)

The more dense a medium,
a) the faster the sound will travel through it
b) the slower the sound will travel through it
c)
d)

Which part of the ear transforms sound waves into nerve impulses?
a) the cochlea
b) the eardrum
c) the anvil
d) the ear canal

The middle ear's job is to
a) amplify sound
b) collect sound
c) transmit sound to the brain
d) all of the above

The passage of a wave through a medium is
a) transmission
b) diffraction
c) diffusion
d) absorbtion

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
c)
d)

The bouncing of a wave off a surface
a) reflection
b) refraction
c) diffusion
d) transmission

Waves that cause the particles in a medium to move parallel to the direction that the wave travels.
a) longitudinal waves
b) transverse waves
c) mechanical waves
d)

Which can mechanical waves NOT travel through?
a) empty space
b) solids
c) liquids
d) gases

Matter is transferred when a wave travels.
a) false
b) true
c)
d)

Wavelength decreases as frequency increases.
a) true
b) false
c)
d)

The outer ear
a) collects sound
b) amplifies sound
c) transfers sound waves to the brain
d)

Which is NOT a bone in the middle ear?
a) bow
b) hammer
c) anvil
d) stirrup

The change in direction of a wave when it travels by the edge of an object or through an opening
a) diffraction
b) diffusion
c) amplitude
d) transmission

All sound waves that travel through a medium are absorbed.
a) false
b) true
c)
d)

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