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