physics / Waves & Motion / free
Waves
Follow a disturbance as energy travels without carrying the medium along with it.
a traveling disturbancev = f λ
The relation v=fλ is exact for a single-frequency wave once the medium's propagation speed is defined. Superposition lets many such waves form a richer pattern.
frequency f45 Hz
wavelength λ55 cm
wave speed24.8 u
The medium's particles oscillate locally while the disturbance carries energy along the medium. A wave is a pattern in motion, not a chunk of matter traveling from source to receiver.
04 / PRACTICE
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Use the model, then answer without looking back. Each check isolates one decision a learner should be able to make after this lesson.
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