Sound Waves
Light travels
slow than sound
fast than sound
at the same speed as of sound
at different speed as of sound
fast than sound
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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
In one wavelength, wave passes through
A. one complete vibration
B. two complete vibrations
C. one and a half vibration
D. two and a half vibration
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
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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