Density review questions

If you were to cut an aluminum bar in half the density of each half would be

• Less than the original sample

• The same as the original sample

• Greater than the original sample

Answer explanation

Density is always the same regardless of the object’s size

In which phase do most Earth materials have their greatest density?

• Gaseous

• Liquid

• Solid

If a material is heated and expands, the density of the material will

• Decrease

• Increase

• Remain the same

Tags

NGSS.MS-PS1-4

The volume of an irregular object can be best determined by

• Placing it in a beaker of water

• Calculating the circumference

• Comparing it to a known standard for mass

• Counting the number of flat surfaces

What is the density of a rock which has a mass of 35 grams and a volume of 7cm cubed?

• 42 g/cm cubed

• .2 g/cm cubed

• 28 g/cm cubed

• 5 g/cm cubed

What is the approximate volume of a cube where all sides are equal to 2.5 cm?

• 2.5 cm cubed

• 6.3 cm cubed

• 15.6 cm cubed

• 39.1 cm cubed

Answer explanation

Length times Width times Height!

What is the density of a mineral which has a mass of 100 grams and a volume of 25 cm cubed?

• .25 g/cm cubed

• 2.5 g/cm cubed

• 4.0 g/cm cubed

• 2,500 g/cm cubed

What is the density of a piece of lead that has a mass of 253.1 grams and a volume of 22.4 cm cubed?

• 3.4 g/cm cubed

• 9.5 g/cm cubed

• 11.3 g/cm cubed

• 15.8 g/cm cubed

An empty 250-milliliter beaker has a mass of 60 grams. When 100 milliliters of oil is added to the beaker, the total mass is 140 grams. The density of the oil is approximately...

• 1.7 g/ml

• 1.4 g/ml

• 0.8 g/ml

• 0.6 g/ml

What is the mass of a piece of platinum that has a density of 21.4 g/cm cubed and a volume of 0.4 cm cubed?

• 8.6 g

• 21.8 g

• 53.5 g

• 115.8 g