select all the correct answers.\na scientist is creating a new synthetic material. the materials density is…

select all the correct answers.\na scientist is creating a new synthetic material. the materials density is 6.1 g/cm³. which sentences describe how the scientist can lower the materials density?\n□ the scientist can decrease the mass while keeping the volume constant.\n□ the scientist can increase the mass while keeping the volume constant.\n□ the scientist can decrease the volume while keeping the mass constant.\n□ the scientist can increase the volume while keeping the mass constant.

select all the correct answers.\na scientist is creating a new synthetic material. the materials density is 6.1 g/cm³. which sentences describe how the scientist can lower the materials density?\n□ the scientist can decrease the mass while keeping the volume constant.\n□ the scientist can increase the mass while keeping the volume constant.\n□ the scientist can decrease the volume while keeping the mass constant.\n□ the scientist can increase the volume while keeping the mass constant.

Answer

Explanation:

Step1: Recall density formula

Density $\rho=\frac{m}{V}$, where $m$ is mass and $V$ is volume.

Step2: Analyze effect of changing mass

If $V$ is constant, $\rho$ is directly proportional to $m$. Decreasing $m$ will decrease $\rho$. So "The scientist can decrease the mass while keeping the volume constant" is correct.

Step3: Analyze effect of changing volume

If $m$ is constant, $\rho$ is inversely proportional to $V$. Increasing $V$ will decrease $\rho$. So "The scientist can increase the volume while keeping the mass constant" is correct.

Answer:

The scientist can decrease the mass while keeping the volume constant. The scientist can increase the volume while keeping the mass constant.