Study Physical Properties Flash Cards

 
Pile Management Card
Physical Properties

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what is changed when matter undergoes a physical change
the shape of the object will change. a stick of butter will change because it is melted.
when a substance undergoes a physical change its ___________ does not change
identity
is molding a piece of silver a physical change
yes
is dissolving sugar in water a physical change
yes
is melting an ice cube a physical change
yes
is crushing an aluminum can a physical change
yes
is baking bread a physical change
no
Is sanding a piece of wood a physical change
yes
what kind of changes are melting and freezing
they are both a physical change because if you freez water, it is still water. if you melt something you can refreez it and it will became a icecube again
a change that only affects the physical properties of a substance is known as a (n)
physical change
what are two reasons why density is useful property for identifying substances
each substance has a density that differs from the densities of other substances, and the density of a substance is always the same at a given temperature and pressure.
The units for density take the form of a mass unit divided by a (n)_______unit.
volume
objects such as a cotton ball and a small tomato can occupy similar voulmes but vary greatly in
density
what do D, V, and m stand for in the equation for density
D stands for dinsity
V stands for voulme
m stands for mass
what is the equation for density
mass divied my volume
how will knowing the density of a substance help you determine whether an object made from that material will float in water
if the object has a greater density of water it would sink, and if tit has less density it will float
what will happen to a solid object made from matter with a greater density than water when it is dropped into water
the object would sink because the object's density is nore that the water's density.
Why would 1 kg of lead be less awkward to carry around that 1 kg of feathers
it would be less awkward to carry the lead, because the lead would be a block and there would be a lot of feathers to carry
where will the least dense liquid be found
It would be found at the top of the cylinder
which layer of liquid would settle on the bottom
the layer of liquid with the highest density
if you pour different liquids into a graduated cylinder, the liquids will form layers based upon differences in the _____________ of each liquid.
density
density is the __________________ that describes the relationship between mass and volume.
physical property
a golf ball has more mass than a table tennis ball
density
an onion gives off a very distinctive smell
odor
flavored drink mix dissolves in water
solubility
plastic foam protects you from hot liquid
thermal conductivity
copper can be pulled into thin wires
ductility
an ice cube floats in a glass of water
state
Aluminum can be flattened into sheets of foil
malleability
Some examples of physical propeties are
color, odor, and magnetism
A characteristic of matter that can be observed or measured without changing the identity of the matter is a
physical property
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