bellringer True or false? More mass means less matter? In your composition books, write the answer in complete sentences to the following questions below. True or false? More mass means less matter? On earth 1 kg = 9.8 n = 2.2 lbs. on the moon, 1 kg = 1.7 n = . 27 lbs. What is the mass, in kilograms, of a 150.- lb. person on earth? What is the mass of the person in question 2a. on the moon? What is the weight, in newtons, of a 75.- kg person on earth?

2.2 determining density davis

What is density Density: the mass per unit volume of a given material. Units for density are often expressed as g/ml, g/cm3, or kg/m3. The density of water is 1 gram per cubic centimeter. The density of air is .001 grams per cubic centimeter. Examples

Density of solid and liquids Density of a material is the same no matter what the size or shape of the material.

Determining density Density is calculated using the formula below:

Example 1 A solid wax candle has a volume of 1,700 ml. the candle has a mass of 1.5 kg. what is the density of the candle?

Example 2 Look at figure 2.13. a student measures the mass of five steel hex nuts to be 96.2 g. the hex nuts displaces 13 ml of water. Calculate the density of the steel in the hex nuts.

Example 3 The density of granite is about 2.60 g/cm3. how much mass would a solid piece of granite have that measures 2.00 cm x 2.00 cm x 3.00 cm?

Example 4 Ice has a density of about .920 g/cm3. what is the volume of 100. g of ice?

Write the questions and answers. Title the assignment 2.2 review