Physical Properties Of Matter

1. The Physical
Properties of
Matter

2. What is a physical property of
matter?
•A property that can be observed or
measured without changing the identity
of that matter
•Ex: Color, odor, shape, size, etc.

3. Thermal Conductivity
Definition:
The ability to
transfer thermal
energy (heat) to
something else
Example:
Coffee in a
special cup to
prevent heat
transfer to our
hands

4. State
Definition:
The form in
which matter
exists: solid,
liquid, gas, or
plasma
Example:
Ice = Solid
Water = Liquid
Helium = Gas
Lightning = Plasma

5. Malleability
Definition:
The ability to
be pounded
into thin
sheets
Example:
Aluminum can
be pounded
flat to make
aluminum foil

6. Ductility
Definition:
The ability to
be drawn into
thin wires
Example:
Copper is
used to make
wires

7. Example:
Alka-seltzer
dissolves in
water or sugar
dissolves in
coffee
Solubility
Definition:
The ability for
one substance
to dissolve into
another
substance

8. Density
Definition:
Mass per unit
volume
Example:
Lead is used for
fishing weights
because it is
more dense
than water

9. More information about density...
Density = The amount of matter in a
given space or volume
Density = m Mass
v Volume

10. More information about density...
Most substances have a unique
density:
Water = 1.00 g/mL
Gold = 19.32 g/mL
(See page 13 in your book for a bigger list)
Density < 1 - The object will float in water
Density > 1 – The object will sink in water

11. The Magic Triangle
Answers are expressed in g/cm
3
or g/mL