Questions 1-5
Questions 6-10
Questions 11-15
Questions 16 - 20
Questions 21 - 25
100
A metal disk has certain properties that can be measured. Which property of a disk is different on the moon than it is on Earth?
Weight
100
Limestone and Quartz are common minerals found in Florida. Sarah has a piece of each, but does not know which is which. To find out she plans an investigation to determine the density of each sample, because limestone has a lower density than quartz. Density is equal to the mass divided by volume. She used the water displacement method and found that each mineral had the same volume. The table showed the measurements Sarah recorded.
What can Sarah most likely conclude is true?
A Mineral 2 is limestone because it has a lower density.
B Mineral 2 is limestone because it has less mass.
C Mineral 1 is limestone because it has a lower density
D Mineral 1 is limestone because it has more mass
Mineral 2 is limestone because it has a lower density.
100
What is the volume of the rock based on the displacement of the water in the graduated cylinder?
25 mL
100
Some properties, such as mass, depend on how much matter is present. Other properties, such as malleability, remain the same no matter how much matter is present. Which of these choices is a physical property of the element potassium that remains the same no matter how much matter is present?
A solubility
B mass
C temperature
D volume
solubility
100
A student makes some observations about three solids and summarizes the results in the table below.
Could any of the solids be the same substance and why?
A Solids 1 and 2 could be the same substance. Even though they do not have the same melting point, they have the same mass.
B Solids 2 and 3 could be the same substance. Even though they do not have the same mass, they have the same melting point and color.
C Solids 1, 2, and 3 could all be the same substance. Even though they do not all have the same mass and melting point, they have the same color.
D Solids 1, 2, and 3 cannot be the same substance because they have different combinations of color, melting point, and mass.
Solids 2 and 3 could be the same substance. Even though they do not have the same mass, they have the same melting point and color.
200
An astronaut finds his mass and weight on Earth. Which is true when astronauts get to the moon?
The astronaut will weigh less, but his mass will increase.
The astronaut will weigh less, but his mass will remain the same.
The astronaut’s weight and mass will both decrease.
The astronaut’s weight and mass will both increase
The astronaut will weigh less, but his mass will remain the same.
200
What are the units for density of a liquid?
grams per milliliter
200
Sue noticed that when she put a tomato in water, it sank. When she put an apple in water, it floated. Why did the tomato sink while the apple floated
The tomato is more dense than the water, and the apple is less dense than the water.
200
Katie’s teacher has given her a sample that contains a mixture of salt, sand, and iron filings. She is instructed to separate the mixture into the three individual components. What would be the best physical property to focus on for the first step in separating the mixture?
A density
B electrical conductivity
C magnetism
D melting point
magnetism
200
Trina needs to create a model of the Sun. What would be the benefit(s) of using a light bulb instead of a yellow balloon?
The light bulb represents the heat and light energy given off by the Sun.
300
Angelica is studying astronauts in her science class and learned that astronauts weigh differently on the moon than they do on the Earth, but they have the same mass in either place. Which statement about mass or weight is correct?
Mass is the scientific term for weight.
Weight directly measures force.
Weight is the amount of material in an object.
Mass directly measures force.
Weight directly measures force.
300
What are the units for density of a solid?
grams per cubic centimeter
300
Steven investigates the density of an unknown piece of metal in the laboratory. Density is equal to mass divided by volume. The mass of the metal is 10.7 grams and its volume is 1.5 cm³.
Based on the data in this table, what conclusion can Steven make about the unknown metal type?
t is zinc.
300
A substance has a density of 2.0 g/ mL. When you drop it in water, will it sink or float or both and why?
sink
300
Scientific explanations are based on evidence, logical reasoning, predictions and modeling. Which of the following is NOT a scientific explanation?
A The sky is blue because blue light is scattered by the air molecules.
B Things fall to the ground because the force of gravity causes all objects in the universe to attract each other.
C Water forms droplets because it has a high surface tension due to the attraction between the molecules.
D Sugar, the generic name for sweet-tasting, soluble carbohydrates, is bad for you because it makes you hyper
Sugar, the generic name for sweet-tasting, soluble carbohydrates, is bad for you because it makes you hyper
400
Sophia’s mass is 50 kilograms on Earth and 50 kilograms on the moon. However, her weight on Earth is 490 Newtons and on the moon is 406 Newtons. Why does Sophia’s mass stay the same but her weight change?
The gravitational pull on Earth is more than that on the moon
400
William calculated the density for 5 samples of tap water from the same source. The volume of each sample is shown in Table A. Table A
When he measured the mass and calculated the density of each sample, what should he have found?
A The largest volume of water had the largest density.
B The smallest volume of water had the largest density.
C All samples of water had the same density.
D The densities of the samples do not depend on the volume
All samples of water had the same density.
400
Coral is completing a lab in which she is required to identify an unknown substance. She records several observations and measurements of the substance. Which of the following properties will be most helpful to Coral in making a correct identification?
A density
B mass
C volume
D weight
density
400
Matthew has six cubes of different materials. Each cube has a mass of 10 grams (g). Matthew sorts the cubes into two groups using one physical property.
Which physical property did Matthew most likely use to sort the cubes into two groups?
A color
B magnetism
C melting point
D conductivity
conductivity
400
If a scientist comes across an unknown element, could she use density to identify the element and why?
Yes, because each element has a specific density.
500
The density of a substance equals its mass divided by its volume (D = m/V). Your teacher gives you a mystery substance that has a mass of 160 g and a volume of 57 cm3. What is the density of the mystery substance?
2.8 g/cm³
500
Jason records properties of cubes made of different materials. His data is shown in the chart below.
Based on the data in the chart above, which statement about these two cubes is correct?
A These cubes are equal in density.
B These cubes are equal in volume.
C These cubes are equal in mass.
D These cubes have the same shape but different volumes
These cubes are equal in volume.
500
Some substances exist as gases at room temperature (oxygen and carbon dioxide), while others, like water and mercury metal, exist as liquids. Still others like, silicon dioxide commonly known as silica, is a solid at room temperature. Which of the following best explains why silicon dioxide is a solid at room temperature, but water is a liquid?
A Silicon dioxide is soluble in water.
B Water has a higher density than silicon dioxide.
C Silicon dioxide has a higher melting point than water.
D Water conducts electricity, but silicon dioxide does not
Silicon dioxide has a higher melting point than water.
500
Your teacher gives you a container with a clear liquid in it. The liquid is a pure substance. What could you do to help identify the liquid in the container?
A Measure the volume of the liquid and compare it to the volumes of other liquids.
B Weigh the liquid and compare it to the weight of other liquids.
C Measure the temperature of the liquid and compare it to the temperature of other liquids.
D Determine the boiling point of the liquid and compare it to the boiling points of other liquids
Determine the boiling point of the liquid and compare it to the boiling points of other liquids
500
Which best describes displacement?
A. measuring how much matter is present in a substance by using a scale
B. measuring how much space matter occupies by using a graduated cylinder
C. measuring how dense matter is by using the density formula
D. calculating mass by using water
measuring how much space matter occupies by using a graduated cylinder