During a scientific study, four similar sound waves were propagated through
four differ-ent media. Through which of the four given options would the sound wave have travelled the farthest ?

Options

A. Air
B. Ocean
C. Outer space
D. Rocky mountain

Answer

To determine through which medium a sound wave would travel the farthest, we need to analyze the properties of sound waves in different media: solids, liquids, gases, and vacuum.

### Step-by-Step Solution:

1. **Understanding Sound Propagation**:
- Sound requires a medium to travel. It cannot propagate through a vacuum because there are no particles to transmit the sound waves.

2. **Comparing Different Media**:
- The speed of sound varies in different media:
- **Solids**: Sound travels fastest in solids because the particles are closely packed, allowing for quicker transmission of sound waves.
- **Liquids**: Sound travels slower in liquids than in solids but faster than in gases.
- **Gases**: Sound travels slowest in gases due to the larger distance between particles, which makes transmission less efficient.
- **Vacuum**: In a vacuum, sound cannot travel at all since there are no particles present.

3. **Identifying the Options**:
- Given the options: Air (gas), Ocean (liquid), Outer Space (vacuum), and Rocky Mountains (solid).
- We can analyze each option based on the medium:
- **Air**: Sound travels in gases but is the slowest medium.
- **Ocean**: Sound travels faster in liquids than in gases, but slower than in solids.
- **Outer Space**: Sound cannot travel in a vacuum, so this option is eliminated.
- **Rocky Mountains**: Sound travels fastest in solids, making this the best option.

4. **Conclusion**:
- Since sound travels fastest in solids, the sound wave would have traveled the farthest through the **Rocky Mountains**.

### Final Answer:
The sound wave would have traveled the farthest through the **Rocky Mountains** (solid).

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