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WorksheetsPhysical Science Unit 1 Test Review
Total questions: 30
Worksheet time: 8hrs 30mins
A student creates diagrams of two models to show magnified views of molecular motion in a solid and a liquid, as shown.
Which sample has the most molecules?
Which sample has the largest molecules?
Which sample has the most molecular motion?
Which sample has molecules with definite volume?
In which state of matter is there the most molecular motion?
Gas
Solid
Liquid
Plasma
The correct phase sequence shown above is ________________, ________________, ________________.
Gas, Solid, Liquid
Solid, Liquid, Gas
Liquid, Gas, Solid
Gas, Liquid, Solid
At room temperature, the metal mercury is a liquid. How could mercury be changed into a solid?
by adding energy to increase molecular motion
by adding energy to decrease molecular motion
by removing energy to increase molecular motion
by removing energy to decrease molecular motion
Absolute zero represents a substance's minimum
gravitational potential energy.
heat of fusion.
internal molecular energy.
specific heat.
The image shows the drawing a student made of ice molecules observed through an electron microscope.
Is the student's drawing correct?
Yes, because the molecules in the solid state are arranged randomly and move randomly relative to each other.
No, because the molecules in the solid state are arranged in ordered arrays and do not move much relative to each other.
No, because the molecules in the solid state are arranged in ordered arrays and move randomly relative to each other.
Yes, because the molecules in the solid state are arranged randomly and do not move much relative to each other.
Which liquid has the highest viscosity?
w
x
y
z
Which liquid has the weakest intermolecular forces?
w
x
y
z
Which liquid would have the highest boiling point?
w
x
y
z
The diagram shows atoms in two different states of matter. Use the diagram to answer any questions that follow.
A is a solid, and B is a liquid.
A is a gas, and B is a liquid.
A is a liquid, and B is a solid.
A is a gas, and B is a solid.
If a gas is at a constant temperature and the pressure increases, what will happen to the volume?
The volume will increase because it is directly proportional to the pressure.
The volume will decrease because it is directly proportional to the pressure.
The volume will increase because it is inversely proportional to the pressure.
The volume will decrease because it is inversely proportional to the pressure.
A football is left on the field outside during the winter months, the next morning the football was partially deflated. Using what you know about gas laws, explain what happened to the football.
Volume decreases due to less molecular motion of the gas inside the football.
Pressure decreases due to more molecular motion of the gas inside the football.
Volume increases due to more molecular motion of the gas inside the football.
Pressure increases due to more molecular motion of the gas inside the football.
According to kinetic molecular theory, as the temperature of a confined gas rises, which of the following characteristics of the gas molecules increases?
size
average speed
density
number
The graph shows the relationship between mass and volume.
What is the density of an object that has a volume of 600 milliliters (mL)?
0.001 g/mL
0.01 g/mL
0.1 g/mL
1.0 g/mL
Read the text about an experiment with bottled soda.
"When soda bottles are sealed in a factory, the bottles are all the same temperature with the same pressure of gas inside. A student decides to perform an experiment to determine what changes will result from adjusting the temperatures of two sealed soda bottles. One bottle of soda is heated, while the other is cooled."
Which statement describes a result of the experiment?
The total volume of gas in the cooled bottle increased.
The total volume of gas in the heated bottle increased.
The pressure of the gas increased in the bottle that was cooled.
The pressure of the gas increased in the bottle that was heated.
According to the gas laws..... when the temperature of a substance increases, what will happen to the volume of the substance?
The volume will decrease.
The volume will increase.
The volume will stay the same.
Not enough information given.
The graph shows how the volume of helium gas changes as the temperature of the gas changes.
The measurements were taken at a constant pressure. What happens as the temperature of helium increases?
The volume of the gas increases.
The volume of the gas decreases.
The volume of the gas fluctuates.
The volume of the gas stays the same.
If a gas stays at a constant pressure as the temperature of the gas is decreased, what will happen?
The volume will increase.
The volume will decrease.
The volume will stay the same.
The volume will double in size.
Terry fills two balloons with the same amount of helium gas. She places one of her helium balloons in the freezer. After twenty minutes, she removes the balloon from the freezer and notices that it is smaller than the balloon that stayed at room temperature. Her balloons are shown below.
How does Terry correctly explain the difference in the size her balloons?
She says that an increase in pressure increases the volume of helium gas.
She says that a decrease in pressure decreases the volume of helium gas.
She says that a decrease in temperature increases the volume of helium gas.
She says that an increase in temperature increases the volume of helium gas.
Which of the following statements concerning a saturated solution is incorrect?
Undissolved solute must be present.
Undissolved solute may or may not be present.
Undissolved solute, if present, is continually dissolving.
Undissolved solute, if present, is in equilibrium with the dissolved solute.
A teacher puts solid adjustable air freshener (as seen above) in his classroom and let's it sit open for a week. At the end of the week the solid is gone, but no liquid was seen. What phase change can explain what occurred?
Condensation, which is changing from gas to liquid.
Sublimation, which is changing from solid to gas.
Melting, which is changing from solid to liquid.
Deposition, which is changing from gas to solid.
Which image most likely represents the atomic structure of solid ice?
Which type of energy is associated with the random motion of the particles in a sample of gas?
nuclear energy
thermal energy
chemical energy
electromagnetic energy
Which of the following statements best describes absolute zero?
the temperature at which water is at its triple point
the temperature at which the molecules of a substance have maximum kinetic energy
the temperature at which water freezes at standard pressure
the temperature at which the molecules of a substance have minimum kinetic energy
Kyle drew diagrams of molecules in three different states.
Which statement is most likely true about the intermolecular attractions between the molecules in Figure 3 compared with Figure 2?
The intermolecular attractions are stronger in Figure 2, which allows the molecules to move around more.
The intermolecular attractions are weaker in Figure 3, which allows the molecules to move around more.
The intermolecular attractions are stronger in Figure 3, which allows the molecules to move around less.
The intermolecular attractions are weaker in Figure 2, which allows the molecules to move around less.
What is true about the relationship between pressure and volume of a gas?
The volume of a gas is always double the pressure.
The volume of a gas is directly proportional to the pressure.
The volume of a gas is inversely proportional to the pressure.
The volume of a gas does not change when the pressure increases.
A container of gas is kept at constant pressure. Which best explains what will happen to the volume if the temperature of the gas is increased?
The volume will increase as the temperature increases.
The volume will decrease as the temperature increases.
The volume will increase twice as quickly as the temperature.
The volume will remain the same as the temperature increases.
Which change would cause the volume of a balloon to increase?
increasing the temperature of the balloon
increasing the atmospheric pressure
removing gas from the balloon
placing the balloon under water
Three identical bottles of soda are used in an experiment. One of the bottles is left at room temperature, another is cooled, and another is heated. Next, the bottles are opened and balloons are placed on top to capture the escaping gas. The temperatures and results are shown.
Which statement is true about the warmest bottle?
The smallest volume of gas has escaped from it into the balloon.
The greatest volume of gas has escaped from it into the balloon.
The unopened bottle originally contained the least amount of gas.
The unopened bottle originally contained the most amount of gas.
Which chart correctly models the molecular arrangements in solids, liquids, and gases?
