how can physical properties be used to identify matter
TRANSCRIPT
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How can physical
properties be used to identify
matter?
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Matter
Everything around us that has:
Mass Volumeand
ExampleTable, chair, board, water , juice, air, bottle, pencil case.
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Mass
Is the amount of matter in an object.
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Tool for measuring mass.
Digital balance
Two pan balance
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Units for measuring mass.
Gram (g)
Kilogram (Kg)
Metric
syste
m
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Volume
Amount of space an object takes.
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Tool for measuring volume.
(For liquids)
Graduated cylinder
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Units for measuring volume.
Milliliter (ml)
Liter (L)
Metric
syste
m
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Mass Volume
and
are called
Physical properties
(Something you can observe or measure)
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Density
Density
= MassVolu
me
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Units for measuring density.
For liquids
g/ml
Kg/ml
Kg/ml
g/l
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Units for measuring density.
For solids
g/cm3
Kg/cm3
Kg/m3
g/m3
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Calculating density.Example 1
A wooden block has a mass of 20 g. Its volume is 10 cm3. What is the density of the wooden block?Density
=Mass
Volume= 20
g
10
cm3
= 2 g/cm3
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Example 2
A green ball has a mass of 100 g and a volume of 200 cm3. What is the density of the green ball?
Density
=Mass
Volume
= 100
g
200
cm3= ½g/
cm3
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Example 3
A yellow ball has a mass of 50 g and a volume of 10 cm3. What is the density of the yellow ball?
Density
=Mass
Volume
= 50
g
10
cm3= 5 g/
cm3
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Other physical properties
Color
Shape
TextureState
Ability to transfer heatAbility to conduct electricity