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Finding the Density of Objects
Volume
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The _________________ of ___________ occupied by an object is called its volume.
•
If you want to know the volume of a solid rectangle, such as a brick, you measure its
_____________, _____________, and, ______________ and multiply the three numbers
and their units together (V = 1 x w x h).
Measuring Volume
•
For a brick, your measurements probably would be in ___________________.
•
The volume would then be expressed in ________________, cm3.
•
In measuring a liquid’s volume, you are indicating the ________ of the container that
holds that amount of liquid.
•
The most common units for expressing liquid volumes are __________ and
________________.
•
A liter occupies the same volume as a _____________ ________________, dm3.
•
A cubic decimeter is a cube that is 1 dm, or 10cm, on each side.
Measuring Matter
•
Mass is a measurement of the __________________ of matter in an object.
•
Density of a material does not change even if the shape of the object does because it is
still the same material. It still has the same “stuff” in it.
Density
•
The ____________ and _____________ of an object can be used to find the density of
the material the object is made of.
•
_____________ is the mass per unit volume of a material.
•
You find density by _________________ an object’s mass by the object’s volume.
•
Combination of base units.
•
Mass-Base unit: kilograms (kg) Grams (g) and milligrams (mg) are used for measuring
objects of small mass.
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Volume - length  width  height
1 cm3 = 1 mL
•
Density - mass per unit volume (g/cm3)
Copy Triangle
GIVEN:
V = 825 cm3
D = 13.6 g/cm3
M=
GIVEN:
M = 620 g
V = 753 cm3
D=?
1 dm3 = 1 L
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