Mrs. Lee – Physical Science
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Chapter 3 Practice Test Answer Key
______ a
1) All of the following are measurements used when working with a gas except ______.
a) area
b) volume
c) temperature
d) pressure
______ d
2) A liquid has a ______.
a) constant temperature
c) crystal structure
______ b
b) definite shape
d) definite volume
3) The change from a gas to a liquid is called ______.
a) evaporation
b) condensation
c) melting
d) sublimation
______ b
4) Which of the following is NOT a characteristic of crystalline solids?
a) particles arranged in repeating patterns
b) becomes softer and softer as temperature rises
c) made up of crystals
d) has a distinct melting point
______ c
5) Boyle’s law states that as the pressure of a gas increases, its ______.
a) volume increases b) temperature increase
c) volume decreases d) temperature decreases
______ d
6) Which of the following is NOT an example of vaporization?
a) water rising into dry air that moves over the ocean
b) bubbles forming as water boils
c) wet pavement drying after a rain shower
d) water droplets forming on a mirror
______ c
7) A substance which takes the shape and volume of its container is a ______.
a) solid
b) liquid
c) gas
d) crystal
______ d
8) Because of surface tension, a liquid ______.
a) resists flowing
b) forms a crystalline solid
c) takes the shape of its container
d) forms droplets
______ a
9) As the gas in a rigid container is heated, its ______.
a) pressure increases
b) volume increases
c) pressure decreases
d) volume decreases
______ b
10) A liquid with a low viscosity ______.
a) has a definite shape
b) flows quickly
c) flows slowly
d) fills its container
______ b
11) According to Charles’s law, when the temperature of a gas increases in a flexible
container, its ______ increases.
a) pressure
b) volume
Ch 3 Practice Test Answer Key
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Mrs. Lee – Physical Science
Page 2
Chapter 3 Practice Test Answer Key
______ b
12) The faster gas particles are moving, the ______ their energy and the ______ the
temperature.
a) lesser, lower
b) greater, higher
______ a
13) At its ______, the particles of a solid are vibrating so fast that they break free from
their fixed positions.
a) melting point
b) freezing point
______ c
14) ______ occurs when the particles on the surface of a solid are directly released as a
gas.
a) Melting
b) Freezing c) Sublimation
d) Evaporation
______ a
15) When the temperature of a gas in a rigid container increases, its ______ increases.
a) pressure
b) temperature
c) surface tension
d) liquid
______ a
16) Bubbles of air exhaled by an underwater swimmer increase in volume as they rise
to the water’s surface.
a) True
b) False
______ b (pressure) 17) The volume of a gas is the result of gas particles pushing on the walls of the
container.
a) True
b) False
______ b (evaporation)
18) During boiling, only particles on the surface of the liquid gain
enough energy to become gas.
a) True
b) False
______ b (melting) 19) The change from a solid to a liquid is condensation.
a) True
b) False
______ a
20) Gas pressure is found by dividing the force of its outward push by the area it
pushes on.
a) True
b) False
______ c
21) The space that matter fills is called ______.
a) pressure
b) area
c) volume
d) mass
______ b
22) Which of the following describes a solid?
a) definite volume but no definite shape
b) definite shape and definite volume
c) neither definite shape nor definite volume d) definite shape but no definite volume
______ a
23) Which of the following describes a liquid?
a) definite volume but no definite shape
b) definite shape and definite volume
c) neither definite shape nor definite volume d) definite shape but no definite volume
Ch 3 Practice Test Answer Key
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Mrs. Lee – Physical Science
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Chapter 3 Practice Test Answer Key
______ c
24) Which of the following describes a gas?
a) definite volume but no definite shape
b) definite shape and definite volume
c) neither definite shape nor definite volume d) definite shape but no definite volume
______ c
25) Anything that has mass and takes up space is called ______.
a) a solution b) an element c) matter
d) thermal
______ b
26) A pure substance made of two or more elements chemically combined in a set ratio
is called a(n) ______.
a) atom
b) compound c) solution
d) mixture
______ b
27) Every chemical or physical change in matter includes a change in ______.
a) state
b) energy
c) color
d) melting point
______ a
28) A change in state from solid to liquid is an example of ______.
a) a physical change b) a chemical change c) oxidation d) electrolysis
______ c
29) A wet towel is hanging on a clothesline in the sun. The towel dries by the process
of ______.
a) boiling
b) condensation
c) evaporation
d) sublimation
______ c
30) Which of the following correctly describes a gas?
a) The particles do not move
b) The particles are closely locked in position and can only vibrate
c) The particles are free to move independently, colliding frequently
d) The particles are closely packed but have enough energy to slide past one another
______ a
31) Which state of matter has both definite volume and definite shape?
a) solid
b) liquid
d) gas
d) plasma
______ b
32) As water vapor condenses into liquid water, the relative freedom of motion of the
water molecules ______.
a) increases
b) decreases
c) stays the same
d) drops to zero because the particles are no longer moving
______ c
33) A gas at constant temperature is confined to a cylinder with a movable piston. The
piston is slowly pushed into the cylinder, decreasing the volume of the gas. The
pressure increases. What are the variables in this experiment?
a) temperature and time
b) time and volume
c) volume and pressure
d) pressure and temperature
______ b
34) What principle states that when the temperature of a gas at constant volume is
increased, the pressure of the gas increases, and when the temperature is decreased, the
pressure of the gas decreases?
a) Gauss’s law
b) the temperature and pressure relationship
c) Boyle’s law
d) Charles’s law
Ch 3 Practice Test Answer Key
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Mrs. Lee – Physical Science
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Chapter 3 Practice Test Answer Key
______ d
35) Boyle’s law describes the relationship between ______.
a) the pressure and temperature of a gas
b) the volume and temperature of a gas
c) the density and volume of a gas
d) the pressure and volume of a gas
______ a
36) Charles’s law states that ______.
a) when the temperature of a gas at constant pressure is increased, its volume
increases, and when the temperature of a gas is decreased, its volume decreases.
b) When the temperature of a gas at constant volume is increased, the pressure of the
gas increases, and when the temperature is decreased, the pressure decreases
c) When the pressure of a gas at constant temperature is increased, the volume of the
gas decreases, and when the pressure is decreased, the volume increases
d) When the pressure of a gas at constant temperature is increased, its mass decreases,
and when the pressure is decreased, the mass increases
______ a
37) Compared to particles in a liquid, the particles in a gas have ______.
a) more energy of motion
b) less energy of motion
c) the same energy of motion
d) almost no energy of motion
______ b
38) According to Charles’s law, when the temperature of a gas increases at a constant
pressure, the volume of the gas ______.
a) stays the same
b) increases c) decreases d) increases, then decreases
______ b
39) Liquids with high viscosity ______.
a) flow faster than liquids with low viscosity
b) flow slower than liquids with low viscosity
c) flow at the same rate as liquids with low viscosity
d) do not flow at all
______ b
40) The particles in a solid are ______.
a) completely motionless
b) locked closely in position and can only vibrate
c) loosely connected and can collide with and move past one another
d) free to move independently, colliding frequently
______ c
41) A gas has ______.
a) a definite shape and volume
c) no definite shape or volume
b) a definite shape, but no definite volume
d) no definite shape, but a definite volume
______ b
42) The pressure of a gas is the ______.
a) force of its outward push divided by the length of the walls of the container
b) force of its outward push divided by the area of the walls of the container
c) area of the walls of the container divided by the temperature of the gas
d) temperature of the gas divided by the area of the walls of the container
______ a
43) Vaporization that takes place only on the surface of a liquid is called ______.
a) evaporation
b) boiling
c) condensation
d) sublimation
Ch 3 Practice Test Answer Key
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Mrs. Lee – Physical Science
Page 5
Chapter 3 Practice Test Answer Key
______ a
44) A change in state from a solid to a liquid is called ______.
a) melting
b) freezing
c) evaporation
d) condensation
______ c
45) The boiling point of a substance depends on the ______.
a) mass of the sample
b) volume of the sample
c) pressure of the air above the sample
d) size of the sample’s container
Use the diagram below to answer the following 2 questions:
______ b
46) Interpreting Diagrams: What is the volume of this gas at a pressure of 60 kPa?
a) 50
b) 100
c) 150
______ a
47) Interpreting Diagrams: What is the pressure of this gas at a volume of 200 mL?
a) 30 kPa
b) 40 kPa
c) 50 kPa
Use the diagram below to answer the following 3 questions:
______ b
48) Interpreting Diagrams: Which container shows the particles of a liquid?
a) container A
b) container B
c) container C
______ c
49) Interpreting Diagrams: Contain C is filled with a ______.
a) solid
b) liquid
c) gas
______ a
50) Inferring: In which container do the particles stay in place, but move slightly back
and forth?
a) container A
b) container B
c) container C
Ch 3 Practice Test Answer Key
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