WAEC Physics 2016 Theory — Question 3
Question 3 of 12 from the West African Examinations Council (WAEC) Physics 2016 Theory paper, with the correct answer and a full explanation.
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3. State three different materials that can be used to demonstrate Brownian motion.
Model answer
Materials that can be used to demonstrate Brownian motion include: • Smoke particles (due to bombardment by air molecules) • Pollen grains (due to their bombardment by water molecules) • Dust particles • Carbon particles • Potassium permanganate crystals (Any three of the above are acceptable.)
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