As the temperature of the air increases, what happens to the velocity of sound? (Assume that all other factors remain constant.)
A) It increases.
B) It decreases.
C) It does not change.
D) It increases when atmospheric pressure is high and decreases when the pressure is low.
E) It increases when atmospheric pressure is low and decreases when the pressure is high.

Question

Quizplus · Accepted Answer

The velocity of sound in air is directly proportional to the temperature of the air. As the temperature of the air increases, the velocity of sound also increases. This is because the air molecules vibrate more vigorously at higher temperatures, which leads to faster propagation of sound waves. Therefore, choice A is correct. Choices D and E are incorrect because they suggest that atmospheric pressure has an effect on the velocity of sound, which is not true. Choice C is also incorrect because it assumes that all other factors remain constant, but the only factor that is changing in this scenario is the temperature of the air.

As the Temperature of the Air Increases, What Happens to the Velocity