Fill in the blanks
Sounds are produce by (a)__________. They have different loudness and pitches. The loudness of sound is also called the (b)__________. it means how strong a sound is and is measured in (c)__________. The pitch of a sound meanss how high or low a sound is. It depends on its (d)__________ which is the number of (e)__________ per (f)__________. The pitch of a sound is measyred in (g)__________
F.2 I.S Questions!!!
2010-12-04 12:34 am
回答 (1)
2010-12-07 7:11 pm
✔ 最佳答案
Sounds are produced by (a) vibrations. They have different loudness and pitches. The loudness of sound is also called the (b) intensity. It means how strong a sound is and is measured in (c) Decibel (dB) . The pitch of a sound means how high or low a sound is. It depends on its (d) frequency which is the number of (e) cycles per (f) second. The pitch of asound is measured in (g) Hertz
參考: Ordinary Level Physics - by M. Nelkon
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