All matter is made of atoms. Matter can be classified as a solid, liquid, or gas by determining whether the shape and volume are definite or variable. Definite means something does not change. Variable means something can change. Particles in a gas move very fast and are usually far apart. Particles in a liquid move quickly but they are fairly close together. The particles in a liquid can move past each other, this allows a liquid to flow. The particles in a solid do not move fast enough to slide past one another. However, they do vibrate in place. All particles of matter have kinetic energy, the energy of motion. Both liquids and gases have variable shapes. When particles are free to move past each other its called a fluid. A different matter that has kinetic energy is plasma, plasma is made up of electricity charged, or ionized, particles. Plasma shares many of the characteristics of gas particles. Temperature is used to measure the average kinetic energy of its particles. The total kinetic energy of all the particles in a substance is called thermal substance.
No comments:
Post a Comment