Rubber Ball Density and Measurement

This video tutorial guides viewers through measuring the diameter of a rubber ball, calculating its radius, volume, and mass, and finally determining its density. The tutorial explains each step in detail, using calipers for measurement and mathematical formulas for calculations. It concludes with a comparison of the ball's density to that of water, determining whether the ball will sink or float.

What is the first step mentioned in the video for analyzing the rubber ball?

• Measuring the diameter

• Finding the radius

• Calculating the volume

• Measuring the mass

How is the diameter of the rubber ball measured?

• Using a ruler

• Using a tape measure

• Using a protractor

• Using calipers

What is the formula used to calculate the radius of the ball?

• Diameter * 2

• Diameter + 2

• Diameter / 2

• Diameter - 2

Which formula is used to calculate the volume of a sphere?

• 4/3 * π * diameter^3

• 2/3 * π * radius^3

• 4/3 * π * radius^3

• 4/3 * π * radius^2

What is the volume of the rubber ball as calculated in the video?

• 98.25 cm³

• 98.51 cm³

• 98.15 cm³

• 98.5 cm³

What is the mass of the rubber ball as measured in the video?

• 15.46 g

• 13.46 g

• 14.36 g

• 12.46 g

How is density calculated according to the video?

• Mass over volume

• Volume minus mass

• Mass times volume

• Volume over mass

What is the density of the rubber ball as calculated in the video?

• 1.16 g/cm³

• 1.26 g/cm³

• 1.61 g/cm³

• 1.06 g/cm³

What is the density of water mentioned in the video?

• 0.1 g/cm³

• 1 g/cm³

• 0.01 g/cm³

• 10 g/cm³

Will the rubber ball sink or float in water based on its density?

• It will sink

• It will neither sink nor float

• It will float

• It will dissolve