Density
1. Which formula is used to calculate density?
A. Density = Volume × Mass
B. Density = Mass ÷ Volume
C. Density = Volume ÷ Mass
D. Density = Mass + Volume
B. Density = Mass ÷ Volume
11. Which group of elements is generally shiny, malleable, and a good conductor of electricity?
A. Nonmetals
B. Metalloids
C. Metals
D. Noble gases
C. Metals
2. A rock has a mass of 30 g and a volume of 10 cm³. What is its density?
A. 0.3 g/cm³
B. 3 g/cm³
C. 20 g/cm³
D. 300 g/cm³
B. 3 g/cm³
12. Which element is classified as a nonmetal?
A. Iron (Fe)
B. Copper (Cu)
C. Oxygen (O)
D. Aluminum (Al)
C. Oxygen (O)
3. An object has a mass of 50 g and a volume of 25 cm³. What is its density?
A. 0.5 g/cm³
B. 2 g/cm³
C. 25 g/cm³
D. 75 g/cm³
B. 2 g/cm³
13. Which element is a metal?
A. Carbon (C)
B. Sulfur (S)
C. Iron (Fe)
D. Oxygen (O)
C. Iron (Fe)
4. Which object would most likely sink in water?
A. Density = 0.5 g/cm³
B. Density = 0.8 g/cm³
C. Density = 1.0 g/cm³
D. Density = 2.5 g/cm³
D. Density = 2.5 g/cm³
14. Where are most metals located on the periodic table?
A. Left side and center
B. Far right side only
C. Top right corner only
D. Bottom row only
A. Left side and center
5. An object has a density of 0.7 g/cm³. What will most likely happen when it is placed in water?
A. It will sink.
B. It will float.
C. It will dissolve.
D. It will evaporate.
B. It will float.
15. Where are most nonmetals located on the periodic table?
A. Left side
B. Center
C. Right side
D. Bottom left corner
C. Right side
6. A metal cube has a mass of 80 g and a volume of 20 cm³. What is its density?
A. 2 g/cm³
B. 4 g/cm³
C. 20 g/cm³
D. 100 g/cm³
B. 4 g/cm³
16. Which element is classified as a metalloid?
A. Silicon (Si)
B. Sodium (Na)
C. Chlorine (Cl)
D. Gold (Au)
A. Silicon (Si)
7. Two objects have the same volume. Object A has a mass of 20 g, while Object B has a mass of 40 g. Which object has the greater density?
A. Object A
B. Object B
C. They have the same density.
D. There is not enough information.
B. Object B
17. What is a common characteristic of metalloids?
A. They are always gases.
B. They have properties of both metals and nonmetals.
C. They are all excellent conductors.
D. They are all liquids at room temperature.
B. They have properties of both metals and nonmetals.
8. A student measures an object's mass as 60 g and its volume as 30 cm³. Which calculation correctly determines its density?
A. 60 × 30 = 1,800 g/cm³
B. 60 + 30 = 90 g/cm³
C. 60 ÷ 30 = 2 g/cm³
D. 30 ÷ 60 = 0.5 g/cm³
C. 60 ÷ 30 = 2 g/cm³
18. Which element belongs to the noble gases?
A. Sodium (Na)
B. Chlorine (Cl)
C. Neon (Ne)
D. Magnesium (Mg)
C. Neon (Ne)
9. Which property describes how much matter is packed into a given amount of space?
A. Mass
B. Volume
C. Density
D. Weight
C. Density
19. An element is located on the far left side of the periodic table and is shiny and a good conductor of electricity. How should it most likely be classified?
A. Metal
B. Nonmetal
C. Metalloid
D. Noble gas
A. Metal
10. Object X has a density of 3 g/cm³. Object Y has a density of 7 g/cm³. Which statement is correct?
A. Object X has more mass in every situation.
B. Object Y has more particles packed into the same amount of space.
C. Object X will always sink and Object Y will always float.
D. Both objects must have the same volume.
B. Object Y has more particles packed into the same amount of space.
20. A student is given the following elements: carbon, silicon, and copper. Which classification is correct?
A. Carbon—metal; Silicon—nonmetal; Copper—metalloid
B. Carbon—nonmetal; Silicon—metalloid; Copper—metal
C. Carbon—metalloid; Silicon—metal; Copper—nonmetal
B. Carbon—nonmetal; Silicon—metalloid; Copper—metal