PH-443
Brownian motion
Physics · Secondary 3 · Hard · Brownian motion
Two different suspensions are observed under identical microscopes: A contains large pollen grains in water, B contains very tiny dust particles in water. In which suspension will Brownian motion appear more vigorous, and why?
- Suspension A, because larger particles feel stronger gravity pulls.
- Suspension A, because larger particles collide with more water molecules.
- Suspension B, because smaller particles are more easily moved by water molecules.
- Both suspensions, because Brownian motion does not depend on particle size.
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