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Wave and matter vocabulary for Mr. Larson

Pure substances Substances that have the same composition throughout, may be elements, molecules, solutions
Elements A substance that cannot be broken down into other substances by chemical or physical means
Molecules Particals containing two or more atoms that are chemically combined
Solutions A mixture in which one or more kinds of matter are mixed evenly in another kind of matter
Mixtures Two or more substances that are mixed together but not chemically combined
Particles What matter is made up of, can be atoms, molecules and compounds
Matter Something that has mass which can exist in the form of solid, liquid, gas or plasma
Property A characteristic of matter that can be observed or measured
Intensive property Property that does depend on the amount of matter present
Color Differing qualities of light being reflected or emitted by objects
Density The measurement of how much mass of a substance is contained in a given volume
Melting point Temperature at which a substance changes from a solid to a liquid
Boiling point Temperature at which a liquid changes to a gas
Solubility A measure of how well a solute can be dissolved n a solvent at a given temperature
Malleability The ability of a substance to be hammered into thin sheets
Extensive property Property that does not depend on he amount of matter present
Mass Amount of matter present
Volume A measure of how much space the matter of an object takes up
Physical change Involves a change in physical properties but not in chemical properties, physical properties can be observed without changing the composition of matter, examples of them include texture, shape, size, color, volume, mass, and weight
Chemical change Connections between atoms are broken and new connections are made with different atoms resulting in new substances which possess different properties than the original substances
Chemical reaction Interactions between sunstences (elements or compounds) in which there is a change in the chemical composition of the sunstences involved
Conservation of matter The mass of a closed system cannot be changed as a resolute of processes acting inside the system
Closed system This describes a system that may exchange energy with its surrounding but not matter
Open system This describes a system that may exchange energy with its surrounds but not matter
Open system In contrast with a closed system this system is free to exchange energy and matter with its surroundings it will not obey conservation principles
Particle model A scientific model used to explain the composition and behavior of matter it is used to explain the differences between solids, liquids, and gases
Acid An acid in common usage is a substance that tastes sour, reacts with metal and carbohydrates, turns blue litmus paper red, and has a pH less than 7.0 in its standard state
pH A cpscale from 0-14 used to measure the acidity of an aqueous solution less than 7 is acidic grater than 7 is basic and equal to 7 is neutral
Base A substance that is water soluble bitter tasting and has a pH greater than 7
P wave Or compressional wave is a seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving
S wave Or shear wave is a seismic body wave that shakes the ground back and forth perpendicular to the direction the wave is moving
Surface wave A seismic wave trapped near the surface of the earth
Wavelength The distance between successive points of equal amplitude and phase of a wave
Frequency The frequency is the number of times something happens in a certain period of time such as the ground shaking up and down or back and forth during an earthquake
Amplitude The amplitude is the size of the wiggles on an earthquake recording
Period The period is the time interval required for one full cycle of a wave
Seismic wave A seismic wave is an elastic wave generated by an impulse such as an earthquake or an explosion Seismic waves may travel either along or near the earth's surface Rayleigh and Love waves or through the earth's interior P and S waves
Seismogram written recording of the earth's vibrations, produced by a seismograph
Epicenter The epicenter is the point on the earth's surface vertically above the hypocenter or focus point in the crust where a seismic rupture begins
Medium Matter that the wave travels through. It may be solid liquid or gas
Tsunami A tsunami is a sea wave of local or distant origin that results from large scale seafloor displacements associated with large earthquakes, major submarine slides or exploding volcanic islands
Tidal wave is a large movement of water formed by the funnelling of the incoming tide into a river or narrow bay
Created by: Hannah1312