Question

A student using a triple beam balance measures an object that has a mass of 63 grams. She then calculates the volume using a graduated cylinder of 9 cm. What is the density?

Options:
A. 7 g/cm³
B. 9 g/cm³
C. 63 g/cm³
D. 72 g/cm³

Answer 1

The density of an object is found by dividing its mass by its volume. With a mass of 63 grams and a volume of 9 cm³, the calculated density is 7 g/cm³, which corresponds to option A.

Step-by-step explanation:

To calculate the density of an object, we can use the formula density (d) = mass (m) / volume (v). In the scenario provided, the student has measured a mass of 63 grams and has observed a water displacement in a graduated cylinder corresponding to a volume of 9 cm³. Therefore, the density of the object is calculated as follows:

d = m / v

d = 63 g / 9 cm³
d = 7 g/cm³

So, the correct option is A. 7 g/cm³.