The Density of Quartz Is 165 Lb/ft³

question 33

Multiple Choice

The density of quartz is 165 lb/ft³. A clear crystal with a mass of 26.5 g is found to displace 10.0 cm³ of water. The crystal has a density __________

• A) of 165 lb/ft³ and therefore is most likely quartz.
• B) of 2.65 g/cm³ and therefore is not quartz.
• C) of 170 lb/ft³ and might be quartz. Better measurements are needed for a definitive test.
• D) of 1.7  10² lb/ft³. Better measurements are needed for a definitive test.
• E) very different from that of quartz.

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The act of imposing a penalty or negative consequence on a behavior to decrease its occurrence.

Dependent Variable

In a scientific experiment, the variable that is tested and measured to see if it is influenced by the independent variable.

Independent Variable

In scientific research, the variable that is manipulated or changed to observe its effect on the dependent variable.