Instruction

1

If the body has the shape of a rectangular parallelepiped (it can be match boxes, book, cube, etc.), then its volume is given by: V=abc, where a is the body height, b - width, c - length. Values are removed by using a regular ruler or measuring tape. Suppose that we are given a matchbox to calculate its volume it is necessary to measure its parameters: a=2cm, b=4cm, c=5 cm, then the volume of the box equal to 4cm*2cm*5cm=40 cm in the cube.

2

If the body shape different from rectangular, irregular shape, its volume can be found by the method, which was discovered by Greek scientist Archimedes in the third century BC. To do this, pour water into the measuring vessel, to remember how much water in it (V1), and then lowering a body in there and measure how much water was (V2), a volume of the subject is difference:V2-V1. You should carefully examine the vessel in what unit he measures the water, most likely in milliliters or liters, then the volume of the body will also be in the same size.

Example: let it is necessary to measure the volume of the stone. Pour in a beaker 50 ml of water. After dropping a stone into the water in the beaker was 60 ml of water, then the volume of this stone is equal to 60-50=10ml.

Example: let it is necessary to measure the volume of the stone. Pour in a beaker 50 ml of water. After dropping a stone into the water in the beaker was 60 ml of water, then the volume of this stone is equal to 60-50=10ml.

3

In the case when a known mass and body density, body volume rasschityvaetsya by the formula: V=m/p where m is mass, p is the density. We assume that the formula is necessary only when body mass is known in kilograms, and the weight in kilograms divided by cubic meter; or the mass is in grams, and density is in grams per cubic cm, then the volume in the first case will be measured in cubic meters, and the second in cubic centimeters. Body density - value table, there are special tables of densities of various substances.

Example: suppose we need to find the volume of an iron stud, a mass of 7.8 g. In a table of densities, find the iron density of 7.8 g/cubic cm Then the volume is equal to 7.8 (g) divided by 7.8 (g/CC) is 1 cubic centimeter.

Example: suppose we need to find the volume of an iron stud, a mass of 7.8 g. In a table of densities, find the iron density of 7.8 g/cubic cm Then the volume is equal to 7.8 (g) divided by 7.8 (g/CC) is 1 cubic centimeter.

Useful advice

To convert measurements of volume at each other, it is necessary to know the following:

1l=1000ml, 1ml=0,001 L.

1l=0.001 cubic meters

1 cubic centimeter=1 ml.

1l=1000ml, 1ml=0,001 L.

1l=0.001 cubic meters

1 cubic centimeter=1 ml.

# Advice 2 : How to calculate the volume

The volume is the space occupied by the body. To calculate the correct volume of the object, which can easily determine the parameters (length, width, height) easy. It is only necessary to multiply the found value. To determine the volume of arbitrary shapes is much more difficult.

Instruction

1

A method of measuring the volume of the object with water was open to the Greek scientist Archimedes. To determine the volume of any body need to take a container of liquid, it is better if the container is transparent. The vessel must be applied to the scale division and to measure the volume occupied by water. After that, the water should immerse the body whose volume you want to learn. As soon as the water rises, you must mark the new level. The difference in levels, obtained by measurement and is equal to the volume of the immersed body.

2

In addition, it is possible to determine the volume of the object by measuring the amount of water displaced by it. For this purpose, in a vessel brim full of water, it is necessary to load the body. With the displaced water should be poured into another container and measure the volume, which will be equal to the desired volume of the body.

3

When finding the volume of a hollow body you can also use the water. For this you need to fill it are available, subject, and then pour the water into a glass, which is applied to the scale division. The measured body volume is equal to the volume of contained water in it.

4

You can calculate the volume of any body, knowing its density and mass. It is necessary to divide the available mass of the object on its density. To know the density of the material from which made a particular item from the reference table "Density of solids".

5

To calculate some of the figures are derived mathematical formulas. For example, for finding the volume of a cylinder we need to know its radius and height. The volume of a cylinder you will receive by works of "PI" to the square of the radius and height of the body (V=π*R2*H).

# Advice 3 : How to calculate the volume, mass and density

The volume describes the size of the space enclosed within the boundary of any object. Mass is another parameter that determines the strength of its interaction with other physical objects or created their fields. The third parameter - the density is a characteristic of the material enclosed within the boundary of the object. These three quantities are related to each other is quite a simple ratio.

Instruction

1

The volume (V) of any body is directly proportional to its mass (m), i.e. with increasing body mass needs to grow its size if remains the same another parameter that affects the volume. The other parameter is the density of matter (ρ), which is the measured object. Its relationship to volume is inversely proportional, i.e. increasing the density of the volume decreases. These two patterns are summarized in the formula that equates to the volume fraction, the numerator of which is the mass, and the denominator of the density: V = m/ρ. This ratio and use in the calculations under certain conditions, the tasks of the right side of the formula.

2

For practical calculations of volume mass and density, you can use the calculator. If you have the opportunity to use the computer, it can be a program calculator built in to its operating system. In the latest versions of Windows to run it, revealing the main menu by typing "SC" and pressing Enter. Having done this, enter the weight of the substance. For example, if you were asked to calculate the volume, which will take five tons of silver, enter the number 5000. Press the slash is the division sign and type the number that corresponds to the density of the substance. For silver is 10.3 g/cm3.

3

Press Enter and the calculator will display the volume (485,4369). Please note the dimension used in the sample weight was entered in kg, and density is in grams per cubic centimeter. To put the result in the recommended SI units of volume (cubic meters), the obtained value should be reduced a thousand times 485,4369 / 1000 = 0,4854369 m3. Of course, practical calculations are quite approximate, as it does not take into account, for example, a temperature at which is measured the density of matter - the higher it is, the less the density. And measuring the weight of the object does not take into account the height above sea level - the farther from the center of the planet, the less body weight.