اختبار تجريبي 2
Quiz by Dr.mariam 0547389123
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- Q1
A standing Wave is formed by waves of frequency 256 Hz, The speed of the waves is 128 m/s, the distance between the nodes must be ......
0.5 m
0.250 m
2 m
1 m
300s - Q2
during preparation for speech the tension in the ..............
vocal cord tension increase and larynx is open
vocal cord tension decrease and larynx is close
vocal cord tension increase and larynx is close
300s - Q3
As a sound source moves toward a stationary observer, the speed of sound same media ....
decrease
increase
remain the same
300s - Q4
the intensity of sound save wave in medium does not depend on ...........
the frequency of the sound wave
speeds of sound in medium
amplitude of the wave
density of the medium
300s - Q5
the Doppler effect is produced if..............
a) the source is in motion
b) the detector is in motion
c) Both of the above
d) None of the above
300s - Q6
the material a wave travels through is called the................
amplitude
medium
antinode
energy
300s - Q7
Voice box or larynx of the human process?
sound
wind
loudness
none of the above
300s