Calculating Density from Graphs

What is the basic formula for calculating density?

• Volume divided by mass

• Mass divided by volume

• Mass multiplied by volume

• Volume minus mass

On a density graph, what does the y-axis represent?

• Volume

• Slope

• Density

• Mass

On a density graph, what does the x-axis represent?

• Density

• Slope

• Volume

• Mass

What mathematical concept is used to calculate density from a graph?

• Area under the curve

• Slope of the line

• Intercept of the line

• Curvature of the line

Why can we assume one of the points on a density graph is (0,0)?

• Because all density graphs start at (0,0)

• All of the above

• Because it simplifies the calculation

• Because it is a standard practice

In the gasoline example, what were the estimated y and x values used?

• 55 grams and 60 milliliters

• 50 grams and 80 milliliters

• 55 grams and 80 milliliters

• 50 grams and 60 milliliters

What was the calculated density of gasoline?

• 0.55 grams per milliliter

• 0.69 grams per milliliter

• 0.92 grams per milliliter

• 0.80 grams per milliliter

In the vegetable oil example, what were the estimated y and x values used?

• 55 grams and 60 milliliters

• 50 grams and 60 milliliters

• 55 grams and 80 milliliters

• 50 grams and 80 milliliters

What was the calculated density of vegetable oil?

• 0.55 grams per milliliter

• 0.69 grams per milliliter

• 0.92 grams per milliliter

• 0.80 grams per milliliter

Why is the line for vegetable oil steeper than the line for gasoline?

• Because gasoline has a lower volume

• Because gasoline has a higher density

• Because vegetable oil has a higher density

• Because vegetable oil has a lower density