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FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

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After striking a tuning fork, Sam finds that if he places the humming fork next to his piano, some of the piano strings vibrate as well. This phenomenon is called:
  1. Dissonance.
  2. Mystery strumming.
  3. Resonance.
  4. Scattering.
  5. Diffraction.
Explanation
Answer: C - Many objects have a resonant frequency, at which frequency the will resonate (or vibrate) with an object that is already vibrating at that frequency. This phenomenon is known as resonance.
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