1.
Which of the following voices is likely to have a minimum frequency?
A
Baby Boy
B
Baby Gir
C
A Man
D
A Women
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Which of the following voices is likely to have a minimum frequency?
Baby Boy
Baby Gir
A Man
A Women
Sound can travel through?
Only Gases
Only Solids
Only Liquids
In solids, liquid and gases
Sounds above 20000Hz are called
ultracool
ultrasound
infra-audio
infrasound
The part of the ear that responds to sound waves like a microphones diaphragm is the
lobe
eardrum
bones of the middle ear
fluid in the inner ear
Hitting a drum harder makes the sound
higher
lower
louder
softer
An animal that can hear sound frequencies higher than a human child is
a human adult
a cod fish
a bat
an eagle
Which of the following does not describe a sound wave?
transverse wave
longitudinal wave
compression wave
push-pull wave
Sound travels fastest in
a vacuum
the sea
the atmosphere
a broom stick
Another name for the unit Hertz is
cycles per second
seconds per cycle
metres per second
decibels
An echo occurs when a sound wave is
absorbed
transmitted
refracted
reflected
The wavelength of a wave is measured in
metres
hertz
seconds
decibels
A sound wave is produced when an object
accelerates
decelerates
vibrates
remains stationary
Which of the following quantities is transferred during wave propagation?
speed
mass
energy
matter
_______________ is an example for mechanical wave.
radio wave
light wave
sound wave
infrared wave
Which of the following will remain unchanged when a sound wave travels in air or in water?
frequency
wavelength
amplitude
speed
The speed of sound in medium depends upon
frequency
amplitude
wavelength
properties of the medium
The amplitude of a wave is ______.
the distance the wave moves in one second
the maximum distance moved by the medium particles on either side of the mean position
the distance the wave moves in one time period of the wave
the distance equal to one wave length
Sound waves are _________________ in nature
longitudinal
transverse
partly longitudinal and partly transverse
sometimes longitudinal and sometimes transverse
Sound waves do not travel through
vacuum
soild
liquid
gases
When sound travels through air, the air particles ______.
do not vibrate
vibrate but not in any fixed direction
vibrate perpendicular to the direction of wave propagation
vibrate along the direction of wave propagation