Density

___ is the amount of matter an object has.

• weight

• mass

• volume

• density

A graduated cylinder is used to measure_____.

• weight

• mass

• volume

• density

If we use the units of grams (g.)for mass and cubic centimeters (cm³) for volume, then the units for density will be

• grams

• cm ³

• g - cm ³

• g/cm ³

The mass of an object is 6 kg on earth. On the moon the mass would be

• 6 kg

• 0 kg

• 1 kg

• 3 kg

A cube has a side of 5 cm. It has a mass of 250 grams. The density of the cube is

• 50 g/cm3 and will float in water

• 2.0 g/cm3 and will float in water

• 50 g/cm3 and will sink in water

• 2.0 g/cm3 and will sink in water

Liquid water is more dense than ice because

• A liquid H ₂0 molecule has more mass than an ice H ₂0 molecule.

• A chemical change occurs when ice melts that causes the mass of water to increase

• When ice melts there is an increase in the amount of water molecules

• there are a greater number of H ₂0 molecules per unit of volume in liquid water than ice.

SI unit for density is

• kg cm^-3

• g cm^-3

• kg m^-3

• g m^-3

To convert the density of kg m^-3 into g cm^-3, we divide the quantities with

• 100

• 10

• 200

• 1000

Mass of oil is 11040 kg and the volume is 12 m³, its density would be

• 92 kg m-3

• 920 kg m-3

• 9.2 kg m-3

• 1.08 × 10-3

Density of a substance is defined as

• its mass per unit volume

• its mass per unit area

• its volume per unit mass

• its weight per unit volume