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S1 Sound
Test Description: An introduction to sound
Instructions: Answer all questions to get your test result.
1) Sound is created when particles...
A
stop
B
vibrate
C
disappear
D
expand
2) Sound travels fastest through
A
a vacuum
B
gases
C
liquids
D
solids
3) Frequency is
A
the noise a sound makes
B
the number of waves/vibrations produced in one second.
C
when sound waves bounce off a surface
D
how loud a sound is
4) The unit of frequency is
A
Hertz
B
Herts
C
Hurtz
D
Hurts
5) The frequency range of human hearing is approximately from
A
2 to 200 Hz
B
200 to 200000 Hz
C
2000 to 200000Hz
D
20 to 20000Hz
6) Any sound above 20000 Hz is known as
A
semisonic
B
loud
C
supersonic
D
ultrasound
7) There are three small bones in the ear called the hammer, __________ and stirrup
A
spanner
B
canal
C
anvil
D
eardrum
8) When sound waves reflect off a surface
A
the sound gets louder
B
you hear an echo
C
it is called ultrasound
D
the vibrations stop
9) In musical instruments changing the length of something will change the
A
loudness
B
time
C
echo
D
frequency
10) Sound cannot travel through a vacuum because
A
the particles are moving too slowly
B
the particles are too cold
C
the particles are too far apart
D
there are no particles
*select an answer for all questions
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