WorksheetsIPC Unit 1 Review
Total questions: 20
Worksheet time: 20mins
A balloon is inflated with room temperature air and is placed outside in the sun. The balloon expands due to the rise in temperature.
Which of the following describes what happens to the molecules of air as the temperature rises?
The molecules of air stop colliding with the balloon wall.
The molecules of air move more quickly.
The molecules of air increase in size.
There are fewer interactions between the air molecule
Most substances are more dense in their solid form than in their liquid or gaseous form. What makes the solid phase more dense?
The solid form has more energy, so the molecules are packed more tightly.
The solid form has more mass, so the molecules are packed more tightly.
The solid form has less energy, so the molecules are packed more tightly.
The solid form has less mass, so the molecules are packed more tightly.
Compared to the particles in a gas, the particles in a solid move —
at the same speed as the gas
slower than the gas
quicker and farther than the gas
quicker than the gas
Which one of the following is a true statement?
Liquids do not change shape easily.
Gas molecules move more slowly as they are heated.
Gas molecules move around freely.
Solids change shape easily.
Which type of substance with a definite volume has the highest amount of particle motion?
Solid
Liquid
Gas
Plasma
The particle motion of four compound samples was observed over a temperature change. The graph of which sample likely represents a gaseous state?
Sample A
Sample B
Sample C
Sample D
The chemical properties and behaviors of substances are directly related to the structure and motion of its molecules. Which of the following statements is supported by the data shown in the graph?
Sample A is likely a liquid because there is a rapid increase in the particle motion as the temperature increases.
Sample B is likely a gas because there is a gradual increase in the particle motion as the temperature increases.
Sample C is likely a gas because there is a gradual decrease in the particle motion as the temperature increases.
Sample D is likely a solid because there is a slight increase in the particle motion as the temperature increases.
Which of the following is one way to witness a chemical property?
Heat a substance to its boiling point.
Examine a substance under a microscope.
Pass an electrical current through the substance.
Observe how the substance reacts with another substance.
What is the density of 18 milliliters of a liquid substance with a mass of 6.05 grams at 15°C? Formula
Hint: D= Density --> D=Mass/Volume
0.336 g/mL
2.98 g/mL
11.95 g/mL
34.05 g/mL
Because buoyant forces act in the opposite direction of gravity, objects completely submerged in water—
appear to weigh more than water
have a net force greater than their volume
have a net force smaller than their weight
are unaffected by gravity
The table below lists the densities of five metals.
According to the Comparing Densities of Metals table above, all of the following metals will float in mercury except-
Copper
Gold
Silver
Palladium
The table below lists the densities of three liquids.
According to the Densities of Common Substances table above, if all three liquids are poured in a beaker and do not mix, how will the liquids be layered from bottom to top?
Glycerin, water, motor oil
Water, motor oil, glycerin
Water, glycerin, motor oil
Motor oil, water, glycerin
A student heats two unknown solids. The graph below shows how the temperature of each sample changes during the experiment.
The student knows that when the temperature of a sample is not changing, the sample is either melting or boiling. Based on the graph above, which conclusion should the student draw about these two unknowns?
Unknown B boiled first.
Unknown A has the higher boiling point.
Unknown B melted first.
Unknown A has the higher melting point.
The graph above shows the temperature of a substance over time as heat is applied. Which section of the graph shows the object in the process of melting?
A
B
C
D
Refer to the image above. A student wants to measure the volume of his toy dinosaur made of an unknown metal. Since the dinosaur is an irregular shape, he decides to measure the volume by immersing it in water.
What additional steps could the student take to identify the unknown metal?
Compare the volume of the dinosaur to known volumes of metals
Measure the mass of the dinosaur, calculate the density, and compare the density of the dinosaur to known densities of metals
Measure the mass of the dinosaur and compare the mass of the dinosaur to known masses of metals
It is impossible to determine the metal in the dinosaur without destroying the toy with a chemical reaction
A student is investigating an unknown substance. In order to determine the identity of the substance, the student must determine its density.
Given the data collected, what is the density of the unknown substance?
0.2 g/cm3
40 g/cm3
5.0 g/cm3
1.43 g/cm3
Viscosity is a measure of a fluid’s internal resistance to flowing and can be thought of as a measure of fluid friction or "thickness." The graph above illustrates how the viscosity of a liquid changes with temperature.
Which of the following situations will cause the liquid’s viscosity to increase?
Increase the temperature
Decrease the temperature
Decrease the pressure
Increase the pressure
Students conduct an experiment with four different liquids. They each take a cup of a different liquid and time how long it takes to pour the liquid out of the container.
Which of the following properties are the students testing with the liquid?
Buoyancy
Viscosity
Conductivity
Reactivity
Condensation occurs when —
a solid gains energy to become a liquid
a liquid gains energy to become a gas
a gas loses energy to become a liquid
a gas loses energy to become a solid
Which of the following best describes what happens when most substances change from a solid state to a liquid state?
The molecules slow down.
The molecules get smaller
The molecules lose energy.
The molecules move farther apart
