If the frequency doubles while the wavelength remains the same, what happens to the wave's speed?

Alberta Grade 9 Science Test: Master your knowledge with our comprehensive practice resources. Featuring engaging flashcards and detailed multiple-choice questions with explanations, get ready to succeed!

Multiple Choice

If the frequency doubles while the wavelength remains the same, what happens to the wave's speed?

Explanation:
The speed of a wave is found from v = f × λ. If the wavelength stays the same and the frequency doubles, the product f × λ doubles because λ is unchanged while f becomes twice as large. So the wave travels twice as fast. Intuitively, more cycles pass each second while each cycle covers the same distance, giving a greater distance per second overall.

The speed of a wave is found from v = f × λ. If the wavelength stays the same and the frequency doubles, the product f × λ doubles because λ is unchanged while f becomes twice as large. So the wave travels twice as fast. Intuitively, more cycles pass each second while each cycle covers the same distance, giving a greater distance per second overall.

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