Determining Specific Gravity Through Rock Density Analysis

The video tutorial explains the concept of specific gravity, particularly in rocks, minerals, and soil particles. It demonstrates how to measure the mass and volume of a rock using the displacement method to calculate its density. The tutorial also shows the effect of placing the rock at the bottom of the container and concludes with the calculation of specific gravity, which is found to be 2.55 grams per cubic centimeter.

What is specific gravity primarily used to measure in the context of rocks and minerals?

• Color

• Hardness

• Physical property

• Chemical composition

What is the first step in determining the specific gravity of a rock?

• Calculating its density

• Immersing it in water

• Measuring its mass

• Finding its volume

Which method is used to determine the volume of the rock?

• Displacement method

• Evaporation method

• Boiling method

• Condensation method

What does the scale show when the rock is immersed in water?

• The mass of the rock

• The volume of the rock

• The mass of the displaced water

• The density of the rock

How much water is displaced by the rock if the mass of the displaced water is 14.2 grams?

• 14.2 cubic centimeters

• 28.4 cubic centimeters

• 36.2 cubic centimeters

• 50.4 cubic centimeters

What happens to the mass reading when the rock is placed at the bottom of the beaker?

• It shows the mass of the water

• It shows the volume of the rock

• It shows the density of the rock

• It shows the mass of the rock

What is the calculated specific gravity of the rock?

• 4.55 grams per cubic centimeter

• 3.55 grams per cubic centimeter

• 2.55 grams per cubic centimeter

• 1.55 grams per cubic centimeter