Measuring the speed of sound in air and solids
Lesson 13 / 13
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I can describe how to measure the speed of sound in air and in a solid metal rod.
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The speed of sound in air is about 340 m/s.
The speed of sound in air can be measured using an echo method and using speed = distance/time.
The speed of sound in a metal rod can be found by measuring the length and the frequency produced when struck.
A result is accurate if it is close to the true value.
A result can be considered accurate if it is repeatable, reproducible and if systematic errors have been checked for.
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