please answer quickly!!: define mass, volume, and density?
923473
Mass is the ammount of space a thing takes up. Density is how hard/solid an object is. Volume is the inside of something (similar to area.) Sorry if my answers aren't enitelry correct!
587954
Measurements (In distance I'm assuming) would give you volume.\n\nMass / Volume = Density\n\nIf you have volume & density, you can rewrite the equation:\n\nMass = Volume * Density
125839
I'm not sure. But the volume of a sphere is (4/3)(pi)(r)^(3). \n2) You know that the diameter is double the radius. So your radius is 1.\n3) Then, your volume is (4/3)(pi). \n4)Density=(mass/Volume)\n5)Density of water is 1.00 mL=1.00g/m^3\n6)MASS=(Density)(Volume)=((1.0g/m^3)(4/3)pi). Note that cubic meters cancel. The mass is (4/3)pi grams.\n\nHope I helped.
255172
Density = mass/volume\nDensity = 615/105 gm/cm3 = 5.86 gm/cm3
102929
Density is the mass per volume.  Buoyancy is the comparison of an object's density with the density of the surroundings.  Helium balloons rise being lifted by the surrounding air sinking around them.  They are less dense than the air they displace, hense are buoyant.
1001813
Mass is a basic aspect of matter. Density is derived.\nA certain amount of mass in a certain volume gives a certain density.\nMany people confuse weight and mass. Mass is more basic. To have weight, you must have mass in a gravitational field. The gravitational field comes from another, separate, mass.\nAn apple has weight in the gravitational field of the earth (and the mass of the apple exerts a gravitational field as well, but much less).\nMass is best quantified (expressed through numbers) through inertia, the resistence to change of movement. The more something resists change in movement, the more mass it has.\nThe same size ball of lead will resist change in movement (be harder to throw) than if made of balsa wood. The resisted change in movement may not be a change in speed, but may be a change in direction, or a combination of the two.\nYou can tie a rock on a string, and twirl it in a circle at a constant speed, and since it's direction is changing, it's movement is changing (change in movement is acceleration). The pull on the string is the force of acceleration. If you cut the string, the rock flies away in a straight line.\nA more massive rock would exert more force on the string. The string will be tighter. This is the property of mass (inertia).\nIce floats on water, although it is made of water. It floats because the density of ice is less than water. It floats because after it displaces (pushes out of the way) it's weight (weight and mass are close for this purpose), it still has some volume left over that sticks out of the surface of the water. A steel cube the same size would sink, because after it had displaced it's volume in water, it would still weigh more than the water. Things that float are said to have positive bouyancy (ice). The water still lifts the steel, but not enough to float (negative bouyancy). A life preserver makes sure a person has positive bouyancey (floats) so he won't drown.\nThe steel is more dense than water or ice.\nVolume is length times width times height.\nIf you cut 6 one inch squares from paper, place one down, tape the edge of one square to each edge of the square lying down, bring all four squares up until they meet, tape the edges to fasten them, and place the other square on top, you have a volume of one cubic inch. Make the squares a foot, and you have a cubic foot, or a cubic what ever you make the square's sides. This is a cube. Volume is cubic in measurement.\nThe more mass there is  that cube, spread uniformly so that there is not a lot of mass in one spot and little in another, but the same amount, the more dense the cube is.\nLead is denser than steel, because a cubic inch (Or foot) of lead weighs more and is more massive than a cubic inch (or foot) of steel.\nLead is denser than water, water is denser than air,\nair is denser than vacuum (the absence of matter).\nHydrogen or helium balloons rise in air because they are lighter, less massive, than the same volume of air as the balloon would be, making them positively bouyant (they float in air). They displace (push aside) more than their weight of air for the same volume.\nSo mass is a basic measurement (quantity), and density is derived from mass of a certain volume, and is known as a derived quantity. \nDensity = mass/ unit volume (unit meaning one, as in one centimeter, one cubic centimeter or one cubic inch or one cubic foot in the case of volume). Mass would be in grams or kilograms (one thousand grams or 2.2 pounds). 454 grams make 1 pound. Grams are rather small.\nFor instance: 5 grams/cubic centimeter       or\n5 grams per (one)cubic centimeter      is the density. One is understood, not stated. This is how density is read (how you say it).\nI hope this helps.\nFor extra, there are a lot of math and physics pages at: http://www.khake.com/page47.html\nthat may interest you.
1150459
Density is mass per volume... so divide the 2 kg by 240 cm3 and you will get your answer.
254101
Density is a physical property of matter that describes the degree of compactness of a substance, in other words, closely packed together the atoms of an element or molecules of a compound are. The more closely packed together the individual particles of a substance are, the more dense that substance is. Since different substances have different densities, density measurements are a useful means for identifying substances. \n\nFor example, how could you distinguish a metric ton of feathers versus a metric ton of bricks if you could not see them? \n\n    \n\nOne metric ton of either feathers or bricks will have an identical mass of 1,000 kilograms (one metric ton). However, a metric ton of feathers will occupy a volume of almost 400 million cm3(about the size of four tractor trailer trucks), while a metric ton of bricks will occupy only one half million cm3 (about the size of a large screen TV). The bricks are denser than the feathers because their mass is packed into a smaller volume. This relationship between the mass and volume of a substance is what defines the physical property of density: \n\nDensity = Mass/Volume \n\nDensity is an intensive property of matter that is defined as the ratio of an objects mass to its volume. Mass is the amount of matter contained in an object and is commonly measured in units of grams (g). Volume is the amount of space taken up by a quantity of matter and is commonly expressed in cubic centimeters (cm3) or in milliliters (ml) (1cm3 = 1 ml). Therefore, common units used to express density are grams per milliliters (g/ml) and grams per cubic centimeter (g/cm3). \n\n\nLet's look at an example. A typical brick has a mass of 2,268 g and occupies a volume of 1,230 cm3. The density of the brick is therefore: \n\n\n\n2,268 g/1,230 cm3 = 1.84 g/cm3 \n\nDensity is an easy concept to confuse. For example, many items that we commonly think of as ‘light’ or ‘heavy’ do not have different masses, but they do have different densities. Look at the table below for examples of the densities of common substances.
1172136
try this and learn more about volume\nhttp://en.wikipedia.org/wiki/Volume
1144640
Absolute density of a material is the weight of a given quantity of the material divided by the sum of the volumes of the particles contained in the same quantity.  Unit is Mass/Vol.\n\nVapour density refers to the density of a vapour in relation to that of hydrogen.  Unit is a number
659168
You should use density to check that out.\nDensity=Weight/Volume
295084
Volume is defined as the amount of space occupied by an object. Density is defined as the amount of mass per unit volume.In other words If there are two objects of volume one litre, And the mass of the first is greater, then the density is also greater.\nDensity=mass/volume. Hope that cleared your concept.
1016233
the equation used to determine density is\nD=m/v \n"D" means density\n"m" is mass\nand "v" is volume of the object.\nmass is the total amount of paritcles something has.  Think of the old trick question: Which weighs more a pound of feathers or a pound of lead.  The answer is they *weigh* the same.  However, now think about how much lead you would need for a pound of it and how many feathers.  Little lead, lots of feathers.  Basically the more matter in a smaller space means higher density.  I really hope this helps.\n\n\nJust thought of another example:\n\nTake 50 pennies.  Put them in a big ziploc freezer bag, press out all the air and zip it shut.  Now, take another 50 pennies and put them in a penny roll--like you see at the bank.  Same amount of matter, 50 pennies.  But they are less densley packed in the bag because the volume of the bag is bigger than the volume of the roll.
945388
density,volume,weight,number of electron and proton.
494602
density of substance is equal to the ratio of mass of the substance to the volume of the substance.\n \ndensity=mass/volume
143556
Density = Mass / Volume\n\nStep 1) Put the Apple on a scale to get its weight.\nStep 2) Mesuare apple to get its volume (use aproxomation)\nStep 3) Caclulate.
26504
The mass is a property of an object, a fundamental measure of the amount of matter in the object. The usual symbol for mass is m and its SI unit is the kilogram.\n\nThe weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.