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24 Cards in this Set
- Front
- Back
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Matter:
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Has mass and takes up space
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Mass:
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the account of a substance
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weight:
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gravitational attraction
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Inertia:
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anythingthat has mass has it...resistance to change in motion. more mass= more inertia
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Law of conservation of mass
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you can not create or destroy mass
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energy:
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the ability to cause change or do work
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Law of Conservation of Energy
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energy can not be created or destroyed
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Chemical energy
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potential energy (ex: food being stored)
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Motion energy
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Kinetic energy (energy of motion, such as a runner running)
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Elastic potential
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ex: a rubber band bended back
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Gravitational NRG
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above the ground
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States of matter
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solid: defined shape, definate volume LOW ENERGY MATTER
liquid: no definate shape, definate volume Gas: No definate shape, no volume Plasma: No definate shape, no volume. HIGH EVERGY MATTER |
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Physical Property
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doesnt change the chemical makeup (example: chopping wood)
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Chemical property
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changes the makeup. (ex: burning wood)
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Indications of a chemical reaction
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1) production of heat or light
2) Production of gas 3) Formation of a solid or precipitate |
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Exothermic:
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releases energy
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Endothermic:
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absorbs energy
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2 major types of matter
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mixtures and pure substances
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two types of mixtures
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homogeneous: uniform, such as sugar , salt water, or cheerios
heterogenous: not uniform, such as salad or soup |
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two types of pure substances
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1) Elements
2) Compounds: mixtures of the elements |
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from C>K
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K=C+273
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from C>K
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C=K-273
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from F>C
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C=(5/9)(F-32)
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from C>F
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F=C(9/5)+32
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