Question

7. Sound plays an important
role in our life. Why?
8. Define:
a) Noise
b) Frequency
c) Vibration
d) Loudness of sound
Science

Answer 1

Answer:

d

Explanation:

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Answer 2

Answer:

Sound is important because it can tell us about character, place, and time. It's important because it informs us and moves us in ways visuals can't, and because certain combinations of sound and visuals can evoke what neither can do alone. It's also potentially important because it can help to determine what we see.

Noise is unwanted sound. ... The number of pressure variations per second is called the frequency of sound, and is measured in Hertz (Hz) which is defined as cycles per second. The higher the frequency, the more high-pitched a sound is perceived.

person's emotional state, the atmosphere of a place, or the associations of an object, as communicated to and felt by others.

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