Sound Question Preview (ID: 55716)


Sound. TEACHERS: click here for quick copy question ID numbers.

How high or low a sound is is the ____________.
a) frequency
b) volume
c) vibration
d) pitch

A back-and-forth movement of matter is its _____________.
a) frequency
b) vibration
c) volume
d) pitch

The number of vibrations per second is the _____________.
a) frequency
b) pitch
c) volume
d) vibration

The loudness of a sound is the __________________.
a) volume
b) pitch
c) frequency
d) vibration

The more energy a sound has, the greater its _______________________.
a) refraction
b) pitch
c) volume
d) reflection

Sound is measured in units called __________________________.
a) decibels
b) decimeters
c) hertz
d) light waves

The softest sound a human can hear is ____________ dB.
a) 10
b) 0
c) 100
d) 200

Sounds above ____________________ dB can cause pain and can damage a person's ears.
a) 0
b) 50
c) 100
d) 200

Sound travels through the air as ____________________________.
a) lines
b) waves
c) jumps
d) strings

A sound that bounces off a surface is called an ________________________.
a) pitch
b) echo
c) frequency
d) vibration

The longer the string, the _____________________ the sound.
a) shorter
b) higher
c) lower
d) louder

Sound travels best through ____________________.
a) air
b) gases
c) liquids
d) solids

Why can't sound be heard in space?
a) Because there are no solids in space.
b) Because there are no liquids in space.
c) Because there is no air in space.
d) Because space is too big.

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