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