Question

II. Fill in the blanks.
1. Sound travels fastest in.......
2. The loudness of a sound is determined by the .......
3. The frequency of a sound determines its..........
.
4. ........sounds have frequencies too high for the human ear to hear
5. Sound is caused by.......​

Answer 1

Answer:

1. Liquids

2.Amplitude

Answer 2

Answer:

1.)Air

2.)Amplitude of vibration

3.)Pitch

4.)Infrasound

5.)Rapid mechanical vibrations of various elastic bodies

Explanation:

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