Brownian Motion
Science: KS3, topic 3.5.8
Brownian Motion
Gas particles move randomly. The random movement of gas particles is called Brownian Motion.
Brownian motion
- Brownian motion is named after Robert Brown.
- Robert Brown was a British botanist (someone who studies plants).
- Brownian motion is the random movement of particles suspended in a liquid or gas.
Pollen in water
- In 1827, Robert Brown studied the effects of pollen in water.
- Robert Brown noticed the pollen moves around randomly.
Brownian motion in fluids
- Liquids and gases can be called fluids.
- The random motion of particles happens because they hit each other.
- After hitting, the particles change direction.
Test yourself on Brownian Motion
Why does Brownian motion occur?
Which of these are true of Brownian motion?