The video tutorial explains how to measure the volume of both regular and irregular solids. For regular solids like bricks, measure the dimensions and multiply them to find the volume in cubic centimeters. For irregular solids like rocks, use water displacement in a graduated cylinder to find the volume. The tutorial also covers calculating density by dividing the mass of the object by its volume, using the example of a rock with a known mass and volume.

What is the first step in determining the volume of a regular solid like a brick?

• Measure the mass of the object

• Measure the dimensions of the object

• Submerge the object in water

• Weigh the object on a balance

How is the volume of a regular solid calculated after measuring its dimensions?

• By multiplying the dimensions

• By dividing the dimensions

• By adding the dimensions together

• By subtracting the dimensions

What method is used to measure the volume of an irregularly shaped object like a rock?

• Using a ruler

• Using a balance

• Liquid displacement

• Using a thermometer

What is the initial step in measuring the volume of an irregular object using liquid displacement?

• Measure the final volume of water

• Measure the initial volume of water

• Weigh the object

• Calculate the density

In the example provided, what was the initial volume of water before the rock was submerged?

• 81.2 milliliters

• 31.2 milliliters

• 74.88 milliliters

• 50 milliliters

What was the final volume of water after the rock was submerged in the example?

• 74.88 milliliters

• 81.2 milliliters

• 31.2 milliliters

• 50 milliliters

What is the formula for calculating density?

• Mass divided by volume

• Volume subtracted from mass

• Volume divided by mass

• Mass multiplied by volume

Why is it important to measure the volume of an irregular solid?

• To determine its color

• To measure its temperature

• To calculate its weight

• To find its density

What was the mass of the rock in the example provided?

• 74.88 grams

• 50 grams

• 81.2 grams

• 31.2 grams

What was the calculated density of the rock in the example?

• 2.4 grams per milliliter

• 1.2 grams per milliliter

• 3.1 grams per milliliter

• 7.4 grams per milliliter

Tags

NGSS.MS-PS1-2