Volume and Density: Calculating Density

The video tutorial explains how to determine if a block of wood will float without placing it in water by calculating its density. It begins by discussing the concept of density, using water as a reference with a density of 1 gram per cubic centimeter. The tutorial then demonstrates how to calculate the density of a wood block by measuring its mass and volume. The mass is found using a triple beam balance, and the volume is calculated by measuring the block's dimensions. The density is then computed by dividing the mass by the volume. Finally, the video concludes that the wood will float because its density is less than that of water.

What is the density of water in grams per cubic centimeter?

• 1.5 grams per cubic centimeter

• 2 grams per cubic centimeter

• 1 gram per cubic centimeter

• 0.5 grams per cubic centimeter

How is density mathematically expressed?

• Density equals volume minus mass

• Density equals mass divided by volume

• Density equals mass times volume

• Density equals volume divided by mass

What tool is used to measure the mass of the block of wood?

• Spring scale

• Measuring tape

• Digital scale

• Triple beam balance

What is the volume of the block of wood in cubic centimeters?

• 207.4 cubic centimeters

• 500 cubic centimeters

• 386 cubic centimeters

• 100 cubic centimeters

Why does the block of wood float in water?

• Because it is made of a special material

• Because it is heavier than water

• Because it has a density less than 1 gram per cubic centimeter

• Because it has a density greater than 1 gram per cubic centimeter