Question: Do sound waves travel at different velocities through different types of matter, and what velocity do sound waves travel through each type of matter, or at all?
Hypothesis: Sound waves will travel faster in solids (hard granite and ground), slower in liquid, slower still in air, and barely or not at all in a vacuum.
Conclusion: Sound waves can move at different speeds through different
mediums. These waves are called longitudinal waves or
compression waves, which move in one direction by bunching
up and spreading farther apart like a slinky. As the wave
moves from one part of the slinky to the next, the loops move
along the length of the slinky. The sound wave moves through
the air very fast because it doesn't move up and down and
travels straight ahead. Depending on the material it moves
through, the sound waves can be faster or slower, or not even
move at all.
My hypothesis was proven correct because sound moved
faster in really solid ground, slower in dirt, slower in the water,
even slower in air, and not at all in a vacuum. The denser a
material is and the closer molecules are to each other, the
faster sound waves move through it, air being the least dense.
With no molecules in space or a vacuum, the sound waves or
vibration can't travel and disturb the air. Therefore, sound
needs a material to go through and can't move through the
vacuum of space.
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Academic Excellence for 56 years ~~
