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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
expand
B
vibrate
C
stop
D
disappear
2) Sound travels fastest through
A
liquids
B
gases
C
solids
D
a vacuum
3) Frequency is
A
when sound waves bounce off a surface
B
how loud a sound is
C
the noise a sound makes
D
the number of waves/vibrations produced in one second.
4) The unit of frequency is
A
Hurts
B
Hertz
C
Hurtz
D
Herts
5) The frequency range of human hearing is approximately from
A
20 to 20000Hz
B
2000 to 200000Hz
C
2 to 200 Hz
D
200 to 200000 Hz
6) Any sound above 20000 Hz is known as
A
supersonic
B
loud
C
semisonic
D
ultrasound
7) There are three small bones in the ear called the hammer, __________ and stirrup
A
eardrum
B
canal
C
anvil
D
spanner
8) When sound waves reflect off a surface
A
the vibrations stop
B
it is called ultrasound
C
you hear an echo
D
the sound gets louder
9) In musical instruments changing the length of something will change the
A
frequency
B
time
C
loudness
D
echo
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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