DIRECTION :

• Describe the nature of sound by filling in the blanks with the correct answer.

ANSWERS :

1) Is a form of energy that travels in invisible waves.

• ⟹ RADIANT ENERGY

2) Make sounds.

• ⟹ VIBRATION

3) The unit of measurement for sound is

• ⟹ DECIBELS

4) The highness or lowness of the sound is

• ⟹ PITCH

5) Is the number of vibrations per second.

• ⟹ FREQUENCY

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