HAN 200 Lecture Notes - Lecture 2: Particle Size, Bicarbonate, Calcium Phosphate
12 Sep 2016
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Matter: matter: anything that has mass and occupies space, weight: pull of gravity on mass. 3 states of matter: solid: definite shape and volume, liquid: changeable shape; definite volume, gas: changeable shape and volume. Capacity to do work or put matter into motion. Types of energy: kinetic: energy in action, potential: stored (inactive) energy. Energy can be transferred from potential to kinetic energy. Chemical energy: stored in bonds of chemical substances. Electrical energy: results from movement of charged particles: mechanical energy: directly involved in moving matter. Radiant or electromagnetic energy: travels in waves (e. g. , visible light, ultraviolet light, and x-rays) Energy may be converted from one form to another. * some energy is lost as heat (partly unusable energy) Elements: matter is composed of elements, elements cannot be broken into simpler substances by ordinary chemical methods, each has unique properties: Physical properties: detectable with our senses, or are measurable.
