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Physics and Chemistry: Matter and State Changes
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What is the formula for density?
d=m/v
What is buoyancy and how is it related to density?
Buoyancy is the ability for a substance to float. Density determines buoyancy.
The temperature at which a solid transforms to a liquid is
Melting Point
The temperature at which a liquid transforms into a gas is
Boiling point
The change from solid to liquid is known as
Melting
The change from liquid to solid is known as
Solidification
The change from gas to liquid is known as
Condensation or liquefication
Which is not a unit used to measure volume? Liter, kilogram, cubic meter, milliliter
kilogram
True or false: When water is cooled and becomes ice, it contracts, decreasing its volume.
False.
A __________ change occurs when a substance is cooled
regressive
A _________ change occurs when heat is applied.
progressive
True or false: 1kg of iron is more dense than 10g of iron. Explain
False. Density is an intensive property and doesnt change based off of the quantity of a substance.
When a substance is cooled, it ______, _______ its volume.
contracts, decreasing
When a substance is heated, it ___________, __________ its volume
expands, increasing
How do you determine the volume of an irregular solid?
Liquid displacement
The amount of matter in a substance is
Mass
This state of matter has a unstable volume, unstable shape, and is compressible
Gas
This state of matter has a stable volume, unfixed shape, and is not compressible
Liquid
This state of matter has a stable volume, fixed shape, and is not compressible.
Solid
The space an object occupies is
Volume
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