Author Question: When a source of sound approaches, measurements will show an increase in the sound's 1) speed, ... (Read 87 times)

FButt · **on:** Jul 29, 2018

When a source of sound approaches, measurements will show an increase in the sound's

1) speed,
2) frequency,
3) wavelength,
4) all of these,
5) none of these,

and when a source of sound recedes, measurements will show an increase in the sound's
6) speed.
7) frequency.
8) wavelength.
9) all of these.
10) none of these.

Question 2

Compared to a soft sound, the speed of a loud sound is

1) less,
2) greater,
3) the same,

and compared to low-frequency sound, higher-frequency sound travels
4) more slowly.
5) faster.
6) the same speed.