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WorksheetsStates of Matter/Phase Changes
Total questions: 50
Worksheet time: 30mins
Name
Class
Date
1.
Molecules have energy and _________ stop moving
a)
rarely
b)
always
c)
never
d)
sometimes
2.
Which is NOT a state of matter
a)
solid
b)
gas
c)
mass
d)
liquid
3.
Matter changes state when...
a)
energy is added or removed
b)
energy is added
c)
energy is removed
d)
there is no energy
4.
As molecules gain energy, they move _____ and spread apart, and vise versa.
a)
faster
b)
slower
c)
less
d)
inside
5.
The reverse of condensation is
a)
sublimation
b)
evaporation
c)
boiling
d)
sublimation
6.
Which of the following occurs when a liquid becomes a gas?
a)
the particles slow down
b)
the particles break away from one another
c)
the particles move closer together
7.
Molecules are closest together in a
a)
Solid
b)
Liquid
c)
Gas
8.
What could be occurring at point E?
a)
boiling
b)
material is getting softer
c)
freezing
d)
material is warming up
9.
What could be occurring between point B and C?
a)
melting
b)
material is getting softer
c)
freezing
d)
material is warming up
10.
The three states of matter of a particular substance, in order of the strength of intermolecular forces from least to greatest are
a)
solid, liquid, gas
b)
liquid, soild, gas
c)
gas, liquid, solid
d)
gas, solid, liquid
11.
Which box has a higher density?
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
12.
Point "B" is known as the:
a)
melting point
b)
freezing point
c)
boiling point
d)
both freezing and melting point.
13.
At which point is this substance a liquid?
a)
A
b)
C
c)
E
14.
What are the molecules responsible for during a phase change?
a)
to rearrange the matter into a new state.
b)
to change
c)
to move faster and faster
d)
to stop moving
15.
Which two phases changes takes away energy?
a)
Freezing, Melting
b)
Condensation, Evaporation
c)
Freezing, Condensation
d)
Melting, Evaporation
16.
Which two phases changes add energy?
a)
Freezing, Melting
b)
Condensation, Evaporation
c)
Freezing, Condensation
d)
Melting, Evaporation
17.
What causes a phase change?
a)
Motion
b)
Speed
c)
Energy
d)
Friction
18.
Which of the following is NOT a type of vaporization.
a)
Boiling
b)
Evaporizing
c)
sublimating
19.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
20.
How is a gas defined?
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
21.
How is a solid defined?
a)
Indefinite shape and indefinite volume
b)
Definite shape and definite volume
c)
Found in the stars
d)
Definite volume, indefinite shape
22.
Thermal energy ALWAYS moves from _____ to _____.
a)
solid to liquid
b)
ice to water
c)
hot to cold
d)
solid to gas
23.
Sublimation is . . . .
a)
solid to gas
b)
gas to solid
c)
solid to liquid
d)
liquid to gas
24.
Deposition is . . . .
a)
gas to solid
b)
solid to gas
c)
gas to liquid
d)
liquid to solid
25.
Evaporation (or vaporization) is . . . .
a)
liquid to gas
b)
gas to liquid
c)
solid to gas
d)
liquid to solid
26.
Melting (or fusion) is . . . .
a)
solid to liquid
b)
liquid to solid
c)
liquid to gas
d)
solid to gas
27.
Freezing (or solidification) is . . . .
a)
liquid to solid
b)
solid to liquid
c)
solid to gas
d)
solid to plasma
28.
Which of the following occurs when a gas becomes a liquid?
a)
the particles slow down
b)
the particles break away from one another
c)
the particles move further away
29.
Which of the following occurs when a liquid becomes a gas?
a)
the particles slow down
b)
the particles break away from one another
c)
the particles move closer together
30.
Why does the graph have two flat lines at "b" and "d"?
a)
Those are times when we took the water off the hot plate
b)
Those are phase changes where temperature doesn't change while adding heat
c)
The line is flat because the water is all in the solid or gas phase
d)
The line is flat because temperature increases the most at those locations
31.
a)
Freezing
b)
Melting
c)
Condensation
d)
Evaporation
32.
a)
Freezing
b)
Melting
c)
Condensation
d)
Evaporation
33.
a)
Freezing
b)
Melting
c)
Condensation
d)
Evaporation
34.
All phase changes (changing states) requires energy to be added or taken away.
a)
True
b)
False
35.
In a solid, the particles
a)
vibrate in place
b)
slide past one another
c)
overcome the strong attraction
36.
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
a)
sublimation
b)
condensation
c)
evaporation
37.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
38.
The reverse of condensation is
a)
sublimation
b)
evaporatio
c)
boiling
39.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
40.
Which of the following occurs when a liquid becomes a gas?
a)
the particles slow down
b)
the particles beak away from one another
c)
the particles move closer together
41.
Change from Gas to Solid is called........
a)
Sublimation
b)
Deposition
c)
Fusion
d)
condensation
42.
2. A change of state from a liquid to a solid is called....
a)
Melting
b)
Freezing
c)
Evaporation
43.
In the Phase Change Continuum, what is A?
a)
Gas
b)
Condense
c)
Liquid
d)
Melt
44.
In the Phase Change Continuum, what is B?
a)
Gas
b)
Condense
c)
Liquid
d)
Melt
45.
In the Phase Change Continuum, what is C?
a)
Gas
b)
Condense
c)
Liquid
d)
Melt
46.
In the Phase Change Continuum, what is D?
a)
Gas
b)
Condense
c)
Liquid
d)
Melt
47.
I have two objects with the same volume but different masses. Which object will be more dense?
a)
The object with less weight.
b)
The object with more weight.
c)
The object with more mass.
d)
The object with less mass.
48.
What is happening at "D" on the graph?
a)
Water is boiling
b)
water is evaporating
c)
water is melting
d)
the sublimation of water
49.
What is labelled "B" on the graph?
a)
solids
b)
liquids
c)
gases
d)
a phase change
50.
What phase of matter is illustrated in "C"
a)
solid
b)
liquid
c)
gas
d)
melting
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