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Phys Sci Ch 3 Part 1
Test Description: Ch 3 part 1
Instructions: Answer all questions to get your test result.
1) A gas has
A
no definite shape or definite volume
B
a definite volume but no definite shape.
C
a definite volume and definite shape.
D
a definite volume but no definite shape.
2) Ninety-nine percent of all the matter that can be observed in the universe exists as
A
plasmas
B
solids
C
liquids
D
gases
3) Matter that has a definite volume but no definite shape is a
A
plasma
B
gas
C
solid
D
liquid
4) If you move a substance from one container to another and its volume changes, the substance is a
A
solid
B
gas
C
liquid
D
solution
5) Forces of attraction limit the motion of particles most in
A
a solid
B
both b and c
C
a liquid
D
a gas
6) What is the result of a force distributed over an area?
A
pressure
B
temperature
C
volume
D
mass
7) Collisions of helium atoms with the walls of a closed container cause
A
gas pressure
B
condensation
C
an overall loss of energy
D
a decrease in volume
8) Which of the following factors affects the pressure of an enclosed gas?
A
number of particles
B
temperature
C
volume
D
all of the above
9) Raising the temperature of a gas will increase its pressure if the volume of the gas
A
is increased, but the number of particles is constant.
B
and the number of particles are increased.
C
is constant, but the number of particles is reduced.
D
and the number of particles are constant.
10) The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, the gas pressure will
A
increase
B
cause a decrease in the average kinetic energy of the particles
C
remain constant
D
decrease
11) Which of the following will cause a decrease in gas pressure in a closed container?
A
lowering the temp
B
both a and b
C
adding more gas
D
reducing the volume
12) The law that states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is
A
Bose's law
B
Einstein's law
C
Boyle's law
D
Charles's law
13) Boyle’s law states that the volume of a gas is inversely proportional to its pressure if the
A
number of particles decreases.
B
temperature reaches absolute zero.
C
temperature and number of particles are doubled.
D
temperature and number of particles are constant.
14) What type of change occurs when water changes from a solid to a liquid?
A
a physical change
B
an irreversable change
C
both a and b
D
a phase change
15) The phase change that is the reverse of condensation is
A
vaporization
B
sublimation
C
melting
D
freezing
16) During a phase change, the temperature of a substance
A
increases
B
decreases
C
does not change
D
increases or decreases
17) The phase change that is the reverse of sublimation is
A
vaporization
B
melting
C
deposition
D
condensation
18) If a solid piece of naphthalene is heated and remains at 80°C until it is completely melted, you know that 80ºC is the
A
both a and b
B
freezing point of naphthalene
C
boiling point of naphthalene.
D
melting point of naphthalene.
19) The heat of fusion for water is the amount of energy needed for water to
A
boil
B
freeze
C
evaporate
D
melt
20) During which phase change does the arrangement of water molecules become more orderly?
A
condensing
B
boiling
C
melting
D
freezing
*select an answer for all questions
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