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WorksheetsSOUND
Total questions: 10
Worksheet time: 2mins
Sound waves that are beyond the range of human ear are known as ----
Infrasonic waves
Ultrasonic waves
If you want to change the pitch of a sound, you have to change the ___
speed
amplitude
volume
frequency
This is what you get when sound waves are reflected, or bounce back, off of a hard surface.
Amplitude
Pitch
Volume
Echo
Bats use ________ to locate mosquitoes in the air
solar
ecology
echolocation
refraction
When a sound is louder what measurement gets bigger?
Frequency
Amplitude
Wavelength
Crest
As a sound source approaches and then moves past a stationary observer, the observer will hear
a drop in pitch, then a rise in pitch
a sudden drop in pitch
a steady rise in pitch
a rise in pitch, then a drop in pitch
Sound waves move more quickly through _________________ matter
dense
light
What unit is the intensity of sound measured in?
decibels (dB)
Hertz (Hz)
meters per second (m/s)
meters
A to and fro motion by an object is also called
oscillatory motion
periodic motion
Cyclic motion
none of these
1 hertz is equal to
1 vibration per minute
10 vibrations per minute
60 vibrations per minute
600 vibrations per minute
