SC-362
Particle model of matter
Lower Sec Science · Secondary 1 · Medium · Particle model of matter
A student says that in a solid, the particles are not moving at all. According to the particle model of matter, which statement correctly describes the motion of particles in a solid at room temperature?
- They are completely motionless and do not move at all.
- They vibrate about fixed positions but do not move from place to place.
- They move freely and randomly throughout the whole solid.
- They move in straight lines until they hit the container walls.
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