Question

Which is the best description of the cause of sound waves?

a.a decrease in pressure
b.one object bumping into another
c.molecules becoming electrically charged
d. a vibration in material causing a vibration in an adjacent area

Answer 1

The Answer is D fs .....

Answer 2

the answer is d

Step-by-step explanation:

When we hear something, we are sensing the vibrations in the air. The number of vibrations per second is known as the frequency, measured in Hertz (1 Hz = 1 vibration per second).