Question

Heating the air will

A. not affect the speed of sound
B. block the movement of sound
C. slightly increase the speed of sound
D. sharply decrease the speed of sound

Answer 1

the correct answer is D
as the particles will move apart due to increase in kinetic energy

Answer 2

Slightly increase the speed of sound

Explanation: Heat is a form of kinetic energy, just like sound. So as molecules vibrate faster, and heat increases, sound can travel faster;