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30 Cards in this Set
- Front
- Back
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Give the characteristics of a SOLID?
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1. Definite Shape
2. Definite Volume 3. packed tightly together 4. Stays in fixed position |
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A solid that is made up of crystals that have a definite melting point
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Crystalline solids
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A distinct temperature at which a solid melts is called what?
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MELTING POINT
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A solid that DOES NOT have a specific melting point and particles ARE NOT arranged in a regular pattern?
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AMORPHOUS SOLID
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A _____ does not have a shape of its own?
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LIQUID
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What are the properties of liquids?
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free to move
no definate shape definate volume |
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Resistance to flowing is what?
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VISCOSITY
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What are the properties of a gas?
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* Changes volume easily
*Takes the shape of the space it occupies * Fills all available space * No definate shape * No definate volume |
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The amount of space that matter fills?
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VOLUME
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The measure of the average energy of MOtion of the particles of a substance is called?
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TEMPERATURE
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The outward push exerted by the particles in a gas is called?
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PRESSURE
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The greater the speed of the particles in a GAS, the______ the pressure.
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greater
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Formula for pressure is :
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Force / Area
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Boyle's Law states what?
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When the PRESSURE of a gas is INCREASED at constant temperature, the VOLUME of the gas DECREASES
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When the temperature of a gas is a constant volume and is increased, the _____ of the gas increases
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PRESSURE
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RAISING TEMPERATURE = ____ PRESSURE
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RAISING
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What is Charles's Law?
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When the TEMPERATURE of a gas INCREASES at a constant pressure, it VOLUME INCREASES
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Diagrams that tell how 2 variables or facters are related are called ____?
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graphs
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The graph of Charles's law shows what?
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The VOLUME OF GAS is directly PROPORTIONAL to its KELVIN TEMPERATURE under pressure
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The graph of Boyle's law shows what?
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pressure of a gas varies INVERSELY WITH ITS VOLUME
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In Thermal Energy -The energy that the particles of substance have, transferred from one substance to another as HEAT; ALWAYS FLOWS HOW?
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warmer to cooler
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The change in state from a solid to a liquid is called what?
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MELTING
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Freezing is what?
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a change of state from liquid to solid
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A Change in State from liquid to gas is called >?
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VAPORIZATION
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What takes place on the surface of a liquid that allows the molecules to escape in the air?
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EVAPORATION
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The second type of vaporization that takes place inside the liquid as well as at the surface is called?
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BOILING
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What is the specific temperature at which a substance boils?
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BOILING POINT
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How does air pressure affect boint point?
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the lower the air pressure the less evergy required for molescules to escape
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What is condensation?
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OPPOSTIE OF EVAPORIZATION; CHANGE IN STATE FROM GAS TO LIQUID
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A change directly from a solid to a gas
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sublimation
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