Calculating Mass Using Density and Water Displacement in Physics

In this video, Mr. Millings explains how to calculate the mass of an object using the density formula and water displacement. The process involves measuring the initial and final water levels in a graduated cylinder to determine the volume of the object. The density of the object is then used to calculate its mass. The video also covers the importance of significant figures in measurements and calculations.

What is the primary method discussed in the video for calculating the mass of an object?

• Using a balance scale

• Using the density formula and water displacement

• Using a thermometer

• Using a ruler

What happens to the water level when an object is submerged in a graduated cylinder?

• It evaporates

• It rises

• It remains the same

• It decreases

Which formula is used to calculate the mass of an object when its density and volume are known?

• Mass = Density / Volume

• Mass = Volume / Density

• Mass = Density x Volume

• Mass = Volume x Density

How is the volume of an object determined using water displacement?

• By multiplying the initial water volume by the object's density

• By measuring the object's height

• By subtracting the initial water volume from the final water volume

• By adding the initial and final water volumes

What is the significance of significant figures in the calculation process?

• They determine the color of the object

• They ensure precision in measurements

• They are used to calculate temperature

• They are irrelevant in calculations

What is the initial volume of water in the graduated cylinder before the lead is added?

• 10.00 milliliters

• 11.00 milliliters

• 11.39 milliliters

• 12.50 milliliters

What is the final volume of water in the graduated cylinder after the lead is added?

• 17.50 milliliters

• 18.00 milliliters

• 19.00 milliliters

• 18.88 milliliters

What is the calculated volume of the lead using water displacement?

• 7.49 milliliters

• 8.00 milliliters

• 6.50 milliliters

• 7.00 milliliters

What is the density of lead used in the calculations?

• 11.340 grams per cubic centimeter

• 10.000 grams per cubic centimeter

• 9.800 grams per cubic centimeter

• 12.500 grams per cubic centimeter

What is the final calculated mass of the lead?

• 84.9 grams

• 80.0 grams

• 90.0 grams

• 85.5 grams