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2 cards from this section. Quick, good the night before a test.
What is a longitudinal wave?
Think about how a slinky moves.
What affects the speed of sound in a medium?
Consider properties of solids vs. gases.
How does the bulk modulus affect the speed of sound?
Remember, the relationship is v = √(B/ρ).
True or False: The speed of sound is faster in air than in water.
Think about the properties of each medium.
Calculate the speed of sound in a gas with a bulk modulus of 1.4 × 10⁵ Pa and density of 1.2 kg/m³.
Use the speed of sound formula directly.
If the speed of sound in a particular metal is 5000 m/s, and the density is 8000 kg/m³, what is its bulk modulus?
Remember to square the speed before multiplying by density.
4 more questions in this section. Enroll free to practise them all.
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