How can physical properties be used to identify matter
Transcript of How can physical properties be used to identify matter
How can physical
properties be used to identify
matter?
Matter
Everything around us that has:
Mass Volumeand
ExampleTable, chair, board, water , juice, air, bottle, pencil case.
Mass
Is the amount of matter in an object.
Tool for measuring mass.
Digital balance
Two pan balance
Units for measuring mass.
Gram (g)
Kilogram (Kg)
Metric
syste
m
Volume
Amount of space an object takes.
Tool for measuring volume.
(For liquids)
Graduated cylinder
Units for measuring volume.
Milliliter (ml)
Liter (L)
Metric
syste
m
Mass Volume
and
are called
Physical properties
(Something you can observe or measure)
Density
Density
= MassVolu
me
Units for measuring density.
For liquids
g/ml
Kg/ml
Kg/ml
g/l
Units for measuring density.
For solids
g/cm3
Kg/cm3
Kg/m3
g/m3
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
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
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
Other physical properties
Color
Shape
TextureState
Ability to transfer heatAbility to conduct electricity