Doone at 12:51pm
As what we learnt last year...When you heat a rod at the end,the particles nearest to it would gain the energy and vibrate faster...Then particles would hit against each other passing the energy from particles to another particles...After a while every particle would receive the energy and would vibrate faster...Therefore you could feel the heat on the other side of the rod...Before the particles vibrate faster,it was already vibrating...(according to what we study)
To proof:How do you know whether the particles are vibrating before it is heated and after
it is heated?
Question:How to proof it...That was what we studied but Proof it is a hard thing...
Does brownian motion makes any sense???
Brownian motion (named after the Scottish botanist Robert Brown) is the seemingly random movement of particles suspended in a fluid (i.e. a liquid or gas) or the mathematical model used to describe such random movements, often called a particle theory.
The mathematical model of Brownian motion has several real-world applications. An often quoted example is stock market fluctuations.
Brownian motion is among the simplest of the continuous-time stochastic (or random) processes, and it is a limit of both simpler and more complicated stochastic processes (see random walk and Donsker's theorem). This universality is closely related to the universality of the normal distribution. In both cases, it is often mathematical convenience rather than the accuracy of the models that motivates their use
BY:http://en.wikipedia.org/wiki/Brownian_motion
Tuesday, June 9, 2009
Done at:10:53pm
How do you show things that you have to proof ,that are microscopic?
• We can provide a model that shows the magnification of the actual thing.
when temperature rises in water, the molecules are activated and energy is pass to one particle to another therefore it moves faster. liquid's molecules are wide apart but not as much as in gases. The more energy they'll gain the more it will start changing into gases. This is how the process of evaporation is. The water would then change into Gas state-Water Vapour
Movement of Particle...
Fill a petri dish with BB's. Tape the cover on. Place on top of a overhead and shake bacand forth. There will be little motion of the particles. this shows the motion of particles in a solid. For young children have them slowly move their fingers back and forth. This will give them the idea of the motion of solid particles 
Fill a petri dis about half full with BB's. Tape the cover on and place on top of a overhead. shake the container back and forth. The particle willl move much faster than the solid as they are farther apart. For young children have them wave their hands quickly back and forth. This will give them the idea of the motion of liquid particles
place a few BB's in a petri dish Tape the cover on and place on top of a overhead. shake the container back and forth as fast as you can. The particle willl move much faster than the solid or liquid as they are farther apart. For young children have them wave their hands quickly back and forth as fast as they can move them. This will give them the idea of the motion of gas particles
what is the kinetic particle theory?
•The kinetic particle theory is the theory that all matter consists of many small particles which are constantly moving or in a continual state of motion. Particle theory explains properties and behavior of materials. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.
Done By:Syafiq Bin Rahiman(10:24Pm)
•The kinetic particle theory is the theory that all matter consists of many small particles which are constantly moving or in a continual state of motion. Particle theory explains properties and behavior of materials. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.
Done By:Syafiq Bin Rahiman(10:24Pm)
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