If frequency is 2,000 Hz and wavelength is 0.5 m, what is the speed of sound?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare confidently for the Davies Publishing SPI Test. Engage with expertly crafted questions and explanations designed to enhance your test-taking skills. Get ahead of the game!

Multiple Choice

If frequency is 2,000 Hz and wavelength is 0.5 m, what is the speed of sound?

Explanation:
Speed is found by multiplying frequency by wavelength, because v = f × λ. With f = 2000 Hz and λ = 0.5 m, the speed is 2000 × 0.5 = 1000 m/s. Units make sense here too: hertz is cycles per second, so Hz × meters gives meters per second. You can also check by period: T = 1/f = 1/2000 = 0.0005 s; in that time the wave travels 0.5 m, so speed = 0.5 / 0.0005 = 1000 m/s.

Speed is found by multiplying frequency by wavelength, because v = f × λ. With f = 2000 Hz and λ = 0.5 m, the speed is 2000 × 0.5 = 1000 m/s. Units make sense here too: hertz is cycles per second, so Hz × meters gives meters per second. You can also check by period: T = 1/f = 1/2000 = 0.0005 s; in that time the wave travels 0.5 m, so speed = 0.5 / 0.0005 = 1000 m/s.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy