# Why Does Density Not Depend On The Size?

## Which material has highest density?

osmiumAt the modest temperatures and pressures of Earth’s surface, the densest known material is the metallic element osmium, which packs 22 grams into 1 cubic centimetre, or more than 100 grams into a teaspoonful..

## Does density increase with mass?

Increasing the pressure on an object decreases the volume of the object and thus increases its density. … Density is an intensive property in that increasing the amount of a substance does not increase its density; rather it increases its mass.

## Why does density stay the same?

Why? The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is. All matter has its own unique density.

## Is gravity just density?

Density is defined as mass per unit volume. It has the SI unit kg m-3 or kg/m3 and is an absolute quantity. Specific gravity is the ratio of a material’s density with that of water at 4 °C (where it is most dense and is taken to have the value 999.974 kg m-3). It is therefore a relative quantity with no units.

## Does mass change with size?

According to the definition of mass, both should measure the same amount of mass. … If we expand the same object, it will measure less gravity to the earth. Therefore the mass of an object, as we measure it today, does change with the size of the object.

## Can mass change?

The mass of an object does not change with speed; it changes only if we cut off or add a piece to the object. … Since mass doesn’t change, when the kinetic energy of an object changes, its speed must be changing. Special Relativity (one of Einstein’s 1905 theories) deals with faster-moving objects.

## What happens to density when volume increases?

Answer and Explanation: Density decreases when volume increases if mass is kept constant. Density is defined as mass divided by volume.

## Why does density change with different substances?

Many materials expand when they are heated. Because a material that expands takes up a larger volume, its density decreases. This phenomenon occurs in all forms of matter: for example, solids, liquids, and gases. The tightly coupled relationship between density and temperature explains how hot air balloons work.

## How can you increase the density of water?

You can use this density variation in water to increase its density. However, temperature fluctuates naturally, so if you wish to increase the density permanently, you can add salt to the water. This increases the water’s mass without increasing its volume. Thus, its density increases.

## What should my weight be for my height and age?

To calculate the WtHR, a person should divide their waist size by their height. If the answer is 0.5 or less, the chances are that they have a healthy weight. A woman who is 5 feet and 4 inches tall (163 cm), should have a waist measurement below 32 inches (81 cm).

## Why does size not affect density?

Does size (or amount) affect density? … The mass and volume both change when changing the amount of molasses. However, the density does not change. This is because the mass and volume increase at the same rate/proportion!

## Is density constant under all conditions?

Density is NOT constant, but for liquids and solids it doesn’t change very much with temperature or pressure. Liquids and solids expand only slightly with increasing temperature, and they compress only slightly with increasing pressure, so their densities are approximately constant under most ordinary conditions.

## Is a heavier object more dense?

Explain why a heavy object like the log floats while a very light grain of sand sinks. … Students should realize that if an object weighs more than an equal volume of water, it is more dense and will sink, and if it weighs less than an equal volume of water, it is less dense and will float.

## Can two different substances have the same density?

So Pure materials ,they can not have same densities. (Assuming they are not isotopes of each other.) But mixtures, compounds or different phases can have same densities. … But mixtures, compounds or different phases can have same densities.

## Does density affect weight?

Density is merely the ratio of the mass of an object to its volume. Density affects “weight” (or gravitational forces felt by the object itself / other objects), but only in the manner described above (i.e. it all has to do with the mass spatial distribution, which is exactly what density “quantifies”, in a way).

## Can two different objects have the same density?

Unlike the mass and volume that may be different for each specimen, all objects made of the same material will have the same density.

## What does constant density mean?

A constant density, or incompressible fluid is a fluid consisting of elements that are not unlike infinitely rigid balls. Any disturbance to a single element is, therefore, instantaneously transmitted throughout the entire field of flow, so that the speed with which information propagates is infinite.

## Why is density more useful than mass?

Density has obvious importance when it comes to the buoyancy of objects. Broadly, if something is denser than water (having a density over 1,000 kg/cubic meter) it will sink, but if something has a lower density than water, it will float.

## Will density change if volume changes?

Density is an intensive property of the material or substance and depends upon the relationship between the mass and volume. Unless the mass changes in relation to the volume, the density will not change.

## Which state of matter has the lowest density?

gasA gas usually has much lower density than a solid or liquid. A quantity of gas doesn’t have a specific shape; in this way it is like a liquid and different from a solid. If a gas is enclosed in a container, it will take on the shape of the container (a liquid will too).

## Is water density constant?

The density of pure water is a constant at a particular temperature, and does not depend on the size of the sample. That is, it is an intensive property. The density of water varies with temperature and impurities.

## Can force change density?

Changing the shape does not change its mass or volume, so density remains the same.

## Does density depend on size?

Answer: Density does not depend on the size, shape, or mass of an object. Density is a property of the material itself; the ratio of mass to volume will always be the same for objects made of the same material.

## Are volume and density directly proportional?

Density and Volume are inversely proportional to each other. Mass and volume are not the same. … When density increases, volume decreases. When volume increases, density decreases.

## How is density affected by pressure?

Density and pressure Pressure affects the density of gazes the most. … At a given temperature and at atmospheric pressure, solids and liquids will have a specific volume. By increasing the pressure on the material, you can often slightly decrease its volume and thus increase its density.

## What does density depend on?

Density (d) depends upon the mass (m) and volume (v) of a substance. The mass depends upon the amount of matter in a substance, whereas volume is the amount of space that a substance takes up.

## What is the relationship between volume and density?

For a given mass and volume, how much physical space a material takes up, of an object or substance, the density remains constant at a given temperature and pressure. The equation for this relationship is ρ = m / V in which ρ (rho) is density, m is mass and V is volume, making the density unit kg/m3.

## Does temperature affect density?

The density of water can also be affected by temperature. … The warmer the water, the more space it takes up, and the lower its density. When comparing two samples of water with the same salinity, or mass, the water sample with the higher temperature will have a greater volume, and it will therefore be less dense.

## Why is density measured at 15 C?

Since the density of a liquid varies as its temperature changes, the scale is adjusted to a certain temperature, usually about 15 degrees C., at which determinations must be made. … Its scale is adapted to liquids heavier or lighter than water. The point to which it sinks in pure water at 15 degrees C. is marked 1.000.

## What is the relationship between volume and mass?

Mass and volume are two units used to measure objects. Mass is the amount of matter an object contains, while volume is how much space it takes up. Example: A bowling ball and a basketball are about the same volume as each other, but the bowling ball has much more mass.