Chapter 6 States of Matter Section 1 Solids, liquids and gases.
Transcript of Chapter 6 States of Matter Section 1 Solids, liquids and gases.
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Chapter 6States of Matter
Section 1
Solids, liquids and gases
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Matter Anything that takes up space and has mass Common States of Matter
Solid Liquid Gas Plasma- extremely hot, very active charged
particles Most common found in the universe Stars, lightning, flourescent lights
Bose- Einstein Condesates- super cold and not active
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Describing a state of matter Mass- the amount of matter in an object
Kg, g Volume- how much space that a sample of
matter takes up L, ml, cc
Density= Mass/Volume
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Solids Definite shape and definite volume Particles in a solid- vibrate around each other They are very tightly packed together and
held together by strong forceshttps://www.youtube.com/watch?v=ZARiF4-tM9I
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Types of Solids Crystalline
Regular repeating pattern Example Diamond
Amorphous Particles arranged randomly Ex- charcoal Charcoal
Diamond
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Liquids Has a definite volume but no definite shape Particles move faster so move more freely in
the substance Particles tend to be further apart so the
attractive forces decrease
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Liquids vocabulary Viscosity- the measurement of a liquids
resistance to flow Honey has high viscosity while water has low
viscosity
Viscosity due to particle mass, particle shape, and the strength of the attraction between molecules
Viscosity may change with increases in temperature
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Liquid vocabulary cont. Surface tension Attraction of similar molecules is cohesion Water molecules at the surface do not have
water molecules above them They experience a greater downward pull So they become stretched like the head of a
drum
The uneven forces acting on the particles on the surface of a liquid
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Gases No definite volume and no definite shape The molecules in a gas are rapidly moving and
are extremely far apart Attractive forces are weak to non existent Vapor- term used for the gas state of
something that is a solid or liquid at room temperature
https://www.youtube.com/watch?v=PhMluFYe_vQ