10. The period is the maximum displacement from the rest position. 11. Sound refers to the loudness or softness of sound.
12.Sound wave is the distance that waves travel before it repeats itself.
13.Sound can travel without a medium.
14.Longer wavelength means high frequency of sound.
15.Longer wavelength is more than 20,000Hz.
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Answer:
10 TRUE 12 TRUE 13 FALSE 14 TRUE 15 FALSE
Explanation:
Answer:
true
true
Explanation:
false
true
false