Brownian Motion Flashcards
1
Q
What is Brownian motion?
A
The jerky random movement of small particles
2
Q
Why does the movement occur?
A
because the particles collide with each other in a liquid or a gas
3
Q
Where can it be seen?
A
- Pollen grains in water exhibit jerky movement known as Brownian motion caused by constantly moving water particles hitting the grains and causing them to move.
- specks of smoke in the air
- with fine dust in liquids other than water
4
Q
Explain Brownian motion using the particle theory:
A
The particle model states that air consists of tiny particles moving in all directions, which collide with smoke specks, pushing them. However, since air particles move randomly, the direction of smoke specks constantly changes, resulting in random Brownian motion.
