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What is sound?
Sound is the energy produced from the vibrations of objects.
What does sound needs in order to travel?
Medium
List the different medium that sound can travel.
Solid, liquid, and gas.
True or false. Sound can travel in a near-perfect vacuum such as space.
False
What are loud and unpleasant sounds?
Noise/s
What is the unit to measure pitch?
hertz
Arrange from fastest to slowest medium that sound can travel.
Solid, liquid, and gas.
True or false. Sound can be made softer or louder.
True.
It is the highness or lowness of sound.
Pitch
What vibrates when we speak or sing?
Our vocal chords/ vocal chords.
Give one negative effect of noise.
Damage our ears, etc.
Write one way to protect our ears from loud noises.
Wear ear protectors.
Unit for loudness.
Decibels
dB stands for ______.
Decibels
A high-pitched sound has ______ frequency.
high
Instrument to measure the loudness of a sound.
Sound Level Meter
