36. Which of the following materials has the lowest density?
a) Iron
b) Lead
c) Aluminum
d) Cork
Answer: d) Cork
37. The density of an object is 2 g/cm³. If the volume of the object is 6 cm³, what is its mass?
a) 4 g
b) 6 g
c) 12 g
d) 18 g
Answer: c) 12 g
38. Which of the following objects would sink in water?
a) An object with a density of 0.8 g/cm³
b) An object with a density of 1.2 g/cm³
c) An object with a density of 4 g/cm³
d) An object with a density of 8 g/cm³
Answer: d) An object with a density of 8 g/cm³
39. The density of a substance is typically measured using a:
a) Thermometer
b) Balance
c) Graduated cylinder
d) Ruler
Answer: b) Balance
40. A block of metal has a mass of 600 grams and a density of 10 g/cm³. What is its volume?
a) 6 cm³
b) 10 cm³
c) 60 cm³
d) 100 cm³
Answer: c) 60 cm³
