Sound
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What are longitudinal waves? Give examples
Longitudinal waves have vibration that are parallel to the direction of the wave Sound waves slinky spring
How are sound waves caused? What is needed for sound to travel through?
By Vibrating objects A medium to travel through
vibrations passing through a medium is series of what?
A series of compression
Why can’t sound travel in space?
Because it’s mostly a vacuum so there’s barely any particles
Give examples of sound being reflected or absorbed
echo - reflected Soft things like carpet or curtains - absorbed
How can a sound wave travel faster?
the more particles there are. The denser the medium the faster sound travels
What is frequency?
the pitch of sound
What is the frequency of sound? And what does it mean to have a high frequency?
Frequency of sound - number of complete waves that pass a point per second High frequency - more vibration
What is frequency measured in?
Hertz (Hz)