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Microcosmology : Atom
Glossary
SCIENTIFIC TERMS absolute zero : The lowest possible temperature, at which a substance contains no hcat energy. acceleration : The rate at which the speed of an object is changing antiparticle : Each type of matter particle has a corresponding anti-particle. When a particle collides with its antiparticle, they annihilate, leaving only energy (page 34). atom : The basic unit of ordinary matter, made up of a tiny nucleus (consisting of protons and ncutrons) surrounded by orbiting clectrons (page 19). big bang : The singularity at the beginning of the universe (page 59/60). black hole : A region of space-time from which nothing, not cven light, can escape, because gravity is so strong (page 64). conservation of energy : The law of scicnce that states that energy (or its equivalent in mass) can be ncither crcated nor destroyed (page37). coordinates : Numbers that specify the position of a point in space and time. cosmology: The study of the universe as a whole; micro cosmology : The study of micro (=small) universe i.e. the atom and the elementary particles. electric charge : a property of a particle by which it may repel (or attract) other particles that have a charge of similar (or opposite) sign (page 39).
MICRO-D.CHP
