PH-1707
Brownian motion
Physics · Secondary 4 · Easy · Brownian motion
In a smoke cell experiment, the air is gently heated. How will the Brownian motion of the smoke particles change?
- They move faster with more vigorous random motion.
- They move more slowly but still in straight lines.
- They stop moving because the air expands.
- They move only upwards in smooth paths.
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