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Mass, Volume, Density

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lunifer's version from 2017-11-18 15:39

Formula

Question Answer
formula for densitymass ÷ volume
formula for massdensity x volume
formula for volumemass ÷ density
formula for volume of regular shaped solidlength x width x height
memorize

Weight vs Mass

Question Answer
mass unitkilograms
weight unitnewtons
what is masshow much matter is in an object
what is weighthow hard gravity pulls on down an object
mass changes on the moon?no
weight changes on the moon?yes
memorize

Buoyancy

Question Answer
Archimedes principlebuoyant force = weight of displaced liquid
what does the buoyancy force dopushes up on an object in a fluid
buoyancy force < weightobject sinks
buoyancy force > weightobject rises
buoyancy force = weightobject floats
how do ships floathull is designed to contain a large volume of air, makes the ship's overall density less than water and floats
memorize

Saltwater vs Freshwater

Question Answer
saltwater is ____ densemore
freshwater is ____ denseless
saltwater has ____ buoyancymore
memorize
freshwater has ____ buoyancy: less

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