Physics A-Level
Smoke particles as visible evidence for molecular motion
What Smoke particles as visible evidence for molecular motion means in Physics A-Level, as defined for OCR.
Definition of Smoke particles as visible evidence for molecular motion
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Reference: OCR
The smoke particles are much larger than the air molecules, so their motion provides evidence for the random motion of the invisible molecules rather than showing molecular collisions directly.
Topics that use Smoke particles as visible evidence for molecular motion
- Solid, liquid and gas (OCR A-Level)
Related terms
- Absolute zero
- Brownian motion
- Change of phase
- Constant temperature during phase change
- Energy transfer in melting and boiling
- Experimental observation through a microscope
- Explaining shape, volume and pressure with the model
- Internal energy
Using Smoke particles as visible evidence for molecular motion in the exam
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