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Describe and clarify Brownian motion as the random collisions between microscopic particles in a suspension and surrounding gas or liquid particles.

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Cambridge IGCSE PhysicsThermal physicsCore content

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Describe and clarify Brownian motion as the random collisions between microscopic particles in a suspension and surrounding gas or liquid particles

This point belongs to Particle model, especially Particle model outcomes.
You need to be able to describe and clarify Brownian motion as the random collisions between microscopic particles in a suspension and surrounding gas or liquid particles.
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DescribeExplainOutline

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Paper 3 structured question: Particle model

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Description

Brownian Motion Observation

In a laboratory, a scientist observes the movement of small particles suspended in water under a microscope. The particles move in a random, zigzag pattern.

a
State the cause of Brownian motion as observed in the experiment.
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Recognize that the random movement of tiny particles in a suspension supports the kinetic particle theory of matter.
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