Question

3 multiple choice 1 point a student reads that sound travels at different rates through solids, liquids, and gases. how could this statement best be verified? a. by measuring the distance a sound can travel in a solid, liquid and a gas d. by measuring how much energy is needed for sound to move through a solid, a liquid and a gas c. by measuring how long it takes a sound to travel a set distance in a solid, liquid and a gas b. by measuring the pitch of a sound as it passes through a solid, liquid and a gas

Explanation:

To verify the rate (speed) of sound in different mediums (solids, liquids, gases), we use the formula \(v=\frac{d}{t}\) (where \(v\) is speed, \(d\) is distance, and \(t\) is time). If we keep the distance \(d\) constant (a set distance), measuring the time \(t\) it takes for sound to travel that distance in each medium allows us to calculate and compare the speeds (\(v\)).

• Option A: Measuring the distance a sound can travel is not relevant for comparing rates (speeds) as it doesn't account for time.
• Option B: Measuring the pitch of a sound is related to frequency (\(f\)) of the sound wave (\(pitch\propto f\)) and not to the speed of sound in a medium.
• Option D: Measuring the energy needed for sound to move through a medium is not related to the speed of sound. The speed of sound in a medium depends on the properties of the medium (like elasticity and density for solids, liquids and density for gases) and not directly on the energy input for the sound wave.

Answer:

C. by measuring how long it takes a sound to travel a set distance in a solid, liquid and a gas