Tuning fork sounds when:
- a. It is perfectly still always
- b. Prongs vibrate
- c. Unrelated to this idea
- d. Opposite of the correct idea
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Vocal cords help us:
- a. Not a standard school answer
- b. Unrelated to this idea
- c. Speak by vibrating
- d. Opposite of the correct idea
Sound travels generally fastest in:
- a. Only pure vacuum always fastest
- b. Unrelated to this idea
- c. Solids compared to gases school
- d. Opposite of the correct idea
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