SC-422
Arrangement of particles
Lower Sec Science · Secondary 1 · Medium · Arrangement of particles
A metal rod is cooled from 30 °C to −20 °C but remains solid. How does the motion of its particles change, according to the particle model?
- They vibrate more slowly about their fixed positions
- They stop vibrating completely and become motionless
- They move freely and far apart from one another
- They start sliding past one another while remaining far apart
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