What term describes the distance from the rest position to the crest of a wave?

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Study for the California Science Test. Get ready for the 8th grade exam with flashcards and multiple choice questions, each question has hints and explanations. Prepare with confidence!

Multiple Choice

What term describes the distance from the rest position to the crest of a wave?

Explanation:
Amplitude is the maximum displacement of a point on the medium from its rest position, so the distance from rest to the crest equals the amplitude. This shows how tall the wave is and relates to the wave’s energy: a larger amplitude means a taller crest and more energy carried. This is different from frequency (how many cycles occur per second), wavelength (the distance between successive crests), and phase (where you are in the wave cycle at a point in space or time). Note that crest-to-trough height is twice the amplitude.

Amplitude is the maximum displacement of a point on the medium from its rest position, so the distance from rest to the crest equals the amplitude. This shows how tall the wave is and relates to the wave’s energy: a larger amplitude means a taller crest and more energy carried. This is different from frequency (how many cycles occur per second), wavelength (the distance between successive crests), and phase (where you are in the wave cycle at a point in space or time). Note that crest-to-trough height is twice the amplitude.

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