11. The density of a substance is directly proportional to its:
a) Mass
b) Volume
c) Temperature
d) Composition
Answer: a) Mass
12. Which of the following materials has the lowest density?
a) Iron
b) Lead
c) Aluminum
d) Cork
Answer: d) Cork
13. The density of an object is 3 g/cm³. If the mass of the object is 15 grams, what is its volume?
a) 5 cm³
b) 10 cm³
c) 15 cm³
d) 45 cm³
Answer: a) 5 cm³
14. Which of the following substances would be considered the most dense?
a) Air
b) Water
c) Oil
d) Mercury
Answer: d) Mercury
15. The density of a substance is dependent on its:
a) Shape
b) Color
c) State (solid, liquid, gas)
d) None of the above
Answer: c) State (solid, liquid, gas)
