Based on the data in the table, what will happen when a sound wave travels from aluminum into copper?
Aluminum
Copper
Lead
Brass
(70% Cu,
30% Zn)
6,420
4,700
5,010
1,960
Speed of
sound
(m/s)
A. The wave will get completely absorbed.
B. The wave will change in frequency
C. The wave will slow down.
D. The wave will speed up.

The sound will have to slow down when it moves from aluminum into copper.

Sound is a form of energy that produces a sensation in the ear. Sound can not be seen but its effect can be felt. The chart shows the speed of sound through various media.

Looking at the chart we can see that the speed of sound in aluminum is greater than the speed of sound in copper hence the sound will have to slow down when it moves from aluminum into copper.

Learn more about speed of sound: link

answer; ///(74) degrees is your answer..