Question

A plastic material has a mass of 3.48 g and a volume of 10 mL.

Will it float or sink? Why?

Answer 1

Answer:

It will float because it is less denser than water.

Explanation:

"Density" refers to the measure of an object's mass per unit volume. It follows the formula below:

• ρ = $\frac{m}{V}$ , where ρ refers to density, m refers to mass and V refers to volume

Water has a constant density of 1 gram per cm-cubed or 1 gram per $cm^{3} \frac{}{}$.

Now that we know about the formula, it would be best to compute for the plastic material's density.

• ρ = what is being asked
• mass (m) = 3.48 grams
• Volume (V) = 10 ml (or 10 $cm^{3}$)

Let's see the answer: ρ = $\frac{3.48 g}{10 ml}$ = 0.348 $\frac{g}{ml}$ (density of the plastic material)

Since 0.348 $\frac{g}{ml}$ is lesser than 1 $\frac{g}{ml}$, then this makes it less denser than water. Thus, it is going to float.