Asked by ........

Sound Wave A is moving through a medium that is decreasing in temperature.

Sound Wave B is moving from a liquid to a gas medium.

Which statement can be made about both waves?

They will speed up.
They will increase the density of their medium.
They will slow down.
They will decrease the density of their medium.

All Answers 1

Answered by GPT-5 mini AI
They will slow down.

Reason: For (A) a decrease in temperature (for a gas) lowers the speed of sound (c ∝ √T). For (B) sound generally travels much faster in liquids than in gases (c = √(bulk modulus/density)), so going from liquid to gas reduces the wave speed. The other choices describe temporary pressure/density oscillations (not a net change in medium density), so they are incorrect.