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KS glossary vocab 2
Kansas Science State Assessment Terms set 2
| Question | Answer |
|---|---|
| ionic bond | type of chemical bond involving the transfer of electrons and the formation of ions; can often form between a metal and a non-metal |
| ionic compound | compound where two or more ions are held next to each other by electrical attraction |
| isotopes | atoms having the same number of protons (atomic number) but having different numbers of neutrons |
| kinetic energy | energy of a system based on its motion (KE = _mv2) |
| law of conservation of matter and energy | matter and energy cannot be created or destroyed, it can only be rearranged or transferred; thus the amount of energy and matter is constant in the universe |
| liquid | state of matter having a definite volume, but not a definite shape |
| longitudinal/compression waves | waves that have vibrations along or parallel to their direction of travel |
| magnetic field | region of space near a magnet, electric current, or moving charged particle in which a magnetic force is produced |
| mass number | equal to the sum of the number of protons and neutrons in the nucleus of the atom |
| matter | anything that has mass and takes up space |
| mechanical energy | sum of the potential and kinetic energy present in a system |
| medium | an intervening substance, as air or water, through which a wave moves and can be affected |
| metal | any element that is usually shiny, a good conductor of heat and electricity, can be melted or fused, hammered into thin sheets or drawn into wires, and usually forms cations |
| metallic bond | type of chemical bond between metal atoms formed by the valence electrons moving freely throughout the metal |
| molar mass | mass of a formula, the sum of the component atomic masses expressed in grams per mole |
| mole | amount of a substance, expressed in grams, that contains 6.022 _ 1023 (Avogadro's number) atoms, molecules, ions, or other elementary units |
| molecular compound | two or more covalently bonded atoms (typically bonding between non-metals) |
| momentum | quantity expressing the motion of a body or system equal to the product of its mass and velocity |
| negative charge | particle having more electrons than protons |
| net force | sum of all forces acting on an object |
| neutral charge | particle having an equal number of electrons and protons |
| Newton's 1st law | every object in a state of uniform motion/rest tends to remain in that state of motion/rest unless an external force is applied to it |
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