Consider the following diagram modelling how one person's speech travels to another person's ear. The purple dot represents an air molecule. The white dots represent other air molecules. • It takes the purple dot 0.002 s to travel from its most left position to its most right position. • The distance between the purple dot's most left position and most right position is 0.004 m • The distance between compression A and B is 1.4 meters. • It takes compression A 0.008 seconds to reach the ear 2.8 meters away. From the information above, what would change if the person produced a sound of different pitch?

Fig: 1

Fig: 2

Fig: 3

Fig: 4

Fig: 5

Fig: 6

Fig: 7

Fig: 8