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Elizabeth Tan Seok Hui (34) 3B2 This is a physics blog :D  Chapters Chapter 7- Kinetic Model Of Matter Chapter 8- Transfer of Thermal Energy Chapter 9- Thermal Properties of Matter 3B2 Physics Tay Shuying Eileen Chia Lim Ern Huei Dawn Chiam Fu Jinting Samantha Yeap Yap Xin Ying Jovee Gan Deborah Loo Vani Hilary Fong Victoria Lee Amanda Teo Janice Yoong Phyllis Quan Wilma Heng Aiswary 3B1 Physics Sheryl Tan Stephanie Loo Jolene Ek Layout: hearteditorials Codes: -ambulance Icon: biconcave |
Wednesday, September 3, 2008
Kinetic Model Of Matter
Matter is anything occupying space and having mass; it is the material of the universe. Matter is also made out of particles. In room temperature, matter can be in different states of matter, such as Solid, Liquid or Gas. The particles in different states have different properties & arrangements. Solid.
 eo on states of matter; click here! :D An example of particles in a gaseous statewould be the steam in the picture on the right. A pictorial example of particles in a solid state would be the pebbles in the picture on the left. Particles in a liquid state would be the water shown in the picture on the left. AT the microscopic level, all matter is made up of tiny particles called atoms or molecules. These particles are always in continuous motion. This assumption of tiny particles in continuous motion is known as the kinetic model of matter.  From left to right, Solid, Liquid & Gas. Solid - The particles are closely packed together, usually in a regular pattern, resulting in solids having high densities. -The particles vibrate about fixed positions only and are held in positions by very strong intermolecular bonds, which explains why solids have fixed volumes and shapes. Liquid - They are randomly arranged with the particles slightly further apart as compared to that of solids, resulting in liquids having relatively high densities -The particles are free to move about the confined space and have attractive forces between particles., explaining why liquids have fixed volumes but will take the shape of the vessels containing them Gas -The particles are very far apart and are randomly arranged, occupying any free space, resulting in very low densities. Solid has a strong intermolecular force whereas gas has a weak intermolecular force. * Did you know there is actually more than just 3 states of matter? Most people only know the gaseous, liquid and solid states. One other well-known state of matter is plasma, found in plasma televisions or plasma spheres. Brownian motion  Brownian motion is the random or irregular motion of smoke particles in air. Brownian motion only occurs in fluids. A fluid is a substance that has the ability to flow or has particles that can move freely. Learn more about brownian motion here. End of Chapter 7. |