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Density
all about density
21
Science
9th Grade
09/22/2011

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Cards

Term
density is
Definition
the amount of matter (mass) per volume
Term
density's equation is?
Definition
D=M/V
Term
what is the difference from mass and weight?
Definition
mass is the amount of matter in a object and weight is the the amount of gravity pulling down
Term
the closer the molecules are...
Definition
the higher the density
Term
the more spread out the molecules are...
Definition
the less dense the object is
Term
objects float if...
Definition
their density is less dense to the fluid they are in
Term
heat cause molecules to...
Definition
expand
Term

TEMPERATURE:

the volume _____

while the mass ____ ______.

Definition

increases

remains constant

Term

TEMPERATURE:

density _____

 

Definition
decreases
Term

TEMPERATURE:

indirect/direct

Definition

indirect

(down)

Term

Pressure on density:

pressure causes molecules to....

Definition
exoand (farther apart)
Term

pressure:

volume _____

while mass ____ _____

Definition

decreases

remains constant

Term

pressure:

as pressure increases density _____

Definition
increases
Term

pressure:

indirect/direct

Definition
direct (up)
Term
uniform materials?
Definition
same composition
Term
how does size and shape affect density? (volume)
Definition
all the molecules remain the same and density remains the same!
Term
molecules are very tight and close together when changing from a...
Definition
solid to a liquid
Term
during melting density....
Definition
decreases
Term
during evaporation density and the molecules...
Definition
density decreases and the molecules spread farther apart
Term
waters density is?
Definition
1.0 g/mL
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