Worksheet #19 (Density) Name _________________________

Reference: Pg 38-39

Summary: Density is the ratio of an object’s mass to its volume and can be calculated using the following equation: D=m/V where m is the mass of the object and V is the volume it takes up.

1. The ratio of an object's mass to its volume is called the ________________ of the object.

2. The most common units for density are ____________.

3. A kilogram of lead occupies a much smaller volume than a kilogram of water, because __________ has a much higher density.

4. Using Table 2-4 in your book (pg 38) : would ice float in kerosene?

5. Would lead float in mercury?

6. For the masses and volumes indicated, calculate the density in grams per cubic centimeter.

1. mass = 234 g; volume = 2.2 cm³

2. mass = 2.34 kg; volume = 2.2 ml

3. mass = 1200 g; volume = 2.1 liters

4. mass = 5.11lb; volume = 54.2 ft³

7. A rectangular metal bar has a volume of 60. in³. The bar weighs 1.42 kg. Calculate the density of the metal in grams per cubic centimeter.

8. 20.0 g of metal pellets are poured into a graduated cylinder containing 15.6 ml of water, causing the water level to rise to 21.9 ml. Calculate the density of the metal pellets.

9. A sample of alcohol has density 0.82 g/ml. What do 55 ml of the alcohol weigh?

10. The density of pure silver is 10.5 g/cm³ at 20°C. If 5.25g of pure silver pellets are added to a graduated cylinder containing 11.2 ml of water, to what volume level will the water in the cylinder rise?

11. Using Table 2-4 again, calculate the volume of 1.00kg of cork.