0
It is the movement of small particles caused by the fact that air mollecules are moving at high speed and hit the particles. It was firs noticed in pollen by a guy called Brown (so the name). He thought the pollen was moving coz it was alive, so he boiled it, but it still moved.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoHeat
Added:
Basically heat is the cause of any movement, called kinetic energy.
It is the moving of molecules, ions and/or atoms, randomly hitting to the colloidal (relatively much bigger) particles that is called brownian motion.
Wiki User
∙ 9y agoBrownian motion is the rapid, erratic motion of particles dispersed in a liquid or gas. This motion is caused by the constant activity of the molecules around the particles.
Wiki User
∙ 12y agoBrownian movement is due to the constant collision of the molecules of the dispersion medium with that of the pollen grains that are sprinkled on the colloid.
Wiki User
∙ 11y agoIt is due to the bombardment of air molecules on the dust particles.
Wiki User
∙ 11y agoCollisions between the grains/dust and atoms
Add your answer:
Earn +20 pts
How did Einstein explain Brownian motion using the moving particle theory?
Around 1900, there was a huge debate amongst scientists on whether the molecular hypothesis of nature -- ie that matter consisted of moving particles -- was something worthy of study. Basically, there was no experiment that had a result that required the existence of molecules. For that reason, many (if not most) scientists thought that only macroscopic, measurable entities (pressure, temperature) should be studied. Einstein showed that the Brownian Motion of small dust particles could only be explained as the random strikes of molecules in the atmosphere against the dust particle. Assuming the existence of molecules made the explanation of Brownian Motion trivial, assuming the opposite made an explanation impossible.
Why do dust particles in the air appear to be moving in different direction's?
Heat motion is random.
Can condensation form on dust particles?
Yes. And this is the cause of fogs. Fogs are just dust particles on which water is present. There are no fogs in America as it does not have dust particles.
What does dust particles mean?
A particle of dust
Why is Brownian motion important to the study of Physics and what are at least 2 examples of Brownian motion in real life situations and the importance of them?
Molecules in a fluid move constantly, freely, randomly, in all directions and with all possible velocities. This erratic motion of the molecules causes them to collide with anything in their path. when pollen grains are suspended in a gas, they fill a resultant force i particular direction and moves to another position, where it has to face same force again. For example, dust particles will be bombarded by the molecules moving at high speeds, causing them to have a zig-zag motion. Brownian motion also takes place in molecules in a liquid, but to a less obvious extent than in a gas.
What is the type of erractic motion seen in dust particles suspended in water?
You think probable to the Brownian motion.
What causes particles of a solid to become arranged in a random manner?
I would guess that you are referring to Brownian motion. When a fine dust is spread on the surface of water you can observe the motion of the dust particles through a microscope as they are struck by water molecules.
What is bvrownian motion?
That would be Brownian motion. That refers to small particles (for example, dust particles) suspended in a liquid or gas exhibiting random behavior - this is caused by liquid or gas molecules bumping into the dust particle.
How do you describe brownian motion?
The rapid zig-zag movement of tiny dust particles suspended in air or in liquid
What are the Evidences of molecular motion?
jittering motions of pollen grains as viewed under a microscope
Why do the dust particles move when a beam of sunlight enter the room?
The random motion of small particles in the air is called Brownian motion (named after the botanist Robert Brown). This motion is caused by the collisions of the particles with the molecules of the gases making up the air.
Are molecules in the air visible?
A1. yes they areansw2. Albert Einstein worked on the Brownian motion of (visible) dust particles in the air. This was one of his early investigations.You should try and find this research, as it is an excellent example of a simple but profound experiment. try 'Brownian Motion' in your favourite search engine.
Why does dust float in air?
whether DUST floats around, I suggest you read about Brownian motion. In a nutshell, it is well-established that particles suspended in a fluid (in this case, dust suspended in air) exhibit constant, random motion. Dust particles will eventually settle to the surface due to gravity, but any disturbance can kick them up again, and particles can remain suspended for very long times (the lighter the particle, the longer it can remain suspended).
What property of a particle led to the discovery of the atom?
== == Atoms were inferred to exist from the observation of "Brownian motion," which is the jittering of dust particles in air or water or some medium as seen through a microscope. The jitter is supposed to be caused by random collisions of atoms or molecules with the dust particles. If the medium were not composed of particles but were a smooth creamy substance without lumps, there would be nothing to make the dust particles jitter.
How did Einstein explain Brownian motion using the moving particle theory?
Around 1900, there was a huge debate amongst scientists on whether the molecular hypothesis of nature -- ie that matter consisted of moving particles -- was something worthy of study. Basically, there was no experiment that had a result that required the existence of molecules. For that reason, many (if not most) scientists thought that only macroscopic, measurable entities (pressure, temperature) should be studied. Einstein showed that the Brownian Motion of small dust particles could only be explained as the random strikes of molecules in the atmosphere against the dust particle. Assuming the existence of molecules made the explanation of Brownian Motion trivial, assuming the opposite made an explanation impossible.
What waves are caused by colliding air molecules?
Brownian movement, Brownian motion, or pedesis is the random movement of particles suspended in either a liquid or a gas. This is the movement that you see when sunlight is streaming through a window and you see the dust particles randomly moving. This movement helped to prove the existence of atoms and molecules. Many scientists, including Albert Einstein, used this motion to describe movements in the stock market, among other things!
How do pollen grains move in water?
pollen grains are attracted by a magnetic force
