Which expression is a measurement of density

Fluid Statics. Search for:. Density Learning Objectives By the end of this section, you will be able to: Define density. Calculate the mass of a reservoir from its density. Compare and contrast the densities of various substances. Which weighs more, a ton of feathers or a ton of bricks?

This old riddle plays with the distinction between mass and density. A ton is a ton, of course; but bricks have much greater density than feathers, and so we are tempted to think of them as heavier. See Figure 1. Density Density is mass per unit volume. Table 1. Take-Home Experiment Sugar and Salt A pile of sugar and a pile of salt look pretty similar, but which weighs more?

If the volumes of both piles are the same, any difference in mass is due to their different densities including the air space between crystals. Which do you think has the greater density? What values did you find? What method did you use to determine these values? Example 1. Discussion A large reservoir contains a very large mass of water. Study Materials. Why use Doubtnut? Instant Video Solutions.

Request OTP. Question : Which expression is a measurement of density? Related Answer. You need to know the mass and volume of an object to find density. Please explain why you think density isn't a useful measurement.

Perhaps you're not sure what density is - and are from the States where you haven't much of a clue what grams per cubic centimetre means.

The relevant measurement is density. List a metric unit for each measurement: lenght, volume, weight, and density,. That depends on the density of whatever you are measuring. Quarts are a volume measurement. Grams are a weight measurement. Only density can link them together.

Density is the ratio of Mass per Volume. Density is a measurement of the mass per unit volume of an object. No, they are determined by measurement. Density is defined as the mass of a unit volume of a material substance. It is calculated by dividing an object's mass by its volume.

The expression "particle density" refers to the number of particles per unit volume, not to the density of a single particle. It would depend on the density of what you are measuring.

Log in. Math and Arithmetic. Add an answer. These may include beakers, a volumetric flask, an Erlenmeyer flask, and a graduated cylinder. Each of these containers is used in a laboratory setting to measure liquid volumes for different purposes. Different substances have different densities, so density is often used as a method to identify a material. Comparing the densities of two materials can also predict how substances will interact.

If the object has a lower density than water, it will float to the top of the water. An object with a higher density will sink. Air has a density of approximately 1. Liquids tend to form layers when added to water. Vegetable oil approx. Water itself is a complicated and unique molecule. Recall that the three basic forms of matter are solid, liquid and gas ignore plasma for the time being.