Sound Waves
In one wavelength, wave passes through
one complete vibration
two complete vibrations
one and a half vibration
two and a half vibration
one complete vibration
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Sounds with a high frequency which a human ear can detect are known asA. infrasound
B. ultrasounds
C. high sounds
D. low sounds
Sound moves in air because
A. temperature is passed on
B. humidity is passed on
C. pressure is passed on
D. heat is passed on
Light travels
A. slow than sound
B. fast than sound
C. at the same speed as of sound
D. at different speed as of sound
All musical instruments make
A. notes
B. rhythm
C. beat
D. vibration
The denser the solid, the
A. more the speed of sound
B. less the speed of sound
C. more clear the sound
D. less clear the sound
The mixture of high and low sounds is called a
A. rhythm
B. bass effect
C. beat effect
D. wow effect
Ships use echolocation to measure the
A. size of fish
B. density of water
C. depth of water
D. area of ocean
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