A. Fill in the blanks with the correct words.
1.
(Waves/Particles) carry energy from one place to another without carrying
matter.
(louder/lower).
2.
When the amplitude is greater, the sound is
The volume of sound, or loudness, is measured in
(decibel/hertz)
3.
(decibel/hertz).
4. The SI unit to measure frequency is
Ice for the false one
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