Carlacecbalagotidn
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9. How does sound travel in different media?
A. Same speed in solid, liquid and gas.
B. Different speed in solid, liquid and gas.
C. Highest speed in solid and slowest in liquid.
D. Highest speed in vacuum.​

Sagot :

Tjanylleidn

Answer:

B

Explanation:

Sound waves need to travel through a medium such as solids, liquids and gases. The sound waves move through each of these mediums by vibrating the molecules in the matter. The molecules in solids are packed very tightly. Liquids are not packed as tightly. And gases are very loosely packed. This enables sound to travel much faster through a solid than a gas. Sound travels about four times faster and farther in water than it does in air. This is why whales can communicate over huge distances in the oceans. Sound waves travel about thirteen times faster in wood than air. They also travel faster on hotter days as the molecules bump into each other more often than when it is cold.

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