A grindstone flies apart and its stored spin energy turns into heat, sound, light and:
AVarnishing
BVibration
CVacuuming
DVaporising
Answer & Solution
Correct answer: B. Vibration
1. The spin energy has to go somewhere.
2. Three named forms are heat, light and sound.
3. The fourth is vibration.
_Source: OpenStax University Physics Volume 1, Chapter 10, Fixed-Axis Rotation._
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