S1 Sound Question Preview (ID: 34571)


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

In musical instruments changing the length of something will change the
a) frequency
b) loudness
c) echo
d) time

When sound waves reflect off a surface
a) you hear an echo
b) the vibrations stop
c) the sound gets louder
d) it is called ultrasound

There are three small bones in the ear called the hammer, __________ and stirrup
a) anvil
b) spanner
c) eardrum
d) canal

Any sound above 20000 Hz is known as
a) ultrasound
b) semisonic
c) supersonic
d) loud

The frequency range of human hearing is approximately from
a) 200 to 200000 Hz
b) 2 to 200 Hz
c) 20 to 20000Hz
d) 2000 to 200000Hz

The unit of frequency is
a) Hurts
b) Herts
c) Hertz
d) Hurtz

Frequency is
a) the number of waves/vibrations produced in one second.
b) how loud a sound is
c) the noise a sound makes
d) when sound waves bounce off a surface

Sound is created when particles...
a) vibrate
b) stop
c) disappear
d) expand

Sound travels fastest through
a) solids
b) liquids
c) gases
d) a vacuum

Sound cannot travel through a vacuum because
a) there are no particles
b) the particles are too far apart
c) the particles are too cold
d) the particles are moving too slowly

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