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No. Some things may be very large, but containing a lot of space only filled by air. Imagine an inflatable bouce house. It's huge, but weighs very little.

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Q: Are all things that have a lot of mass very dense?
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Why the nucleus is very dense?

Because more than 99 % from the mass of an atom is concentrated in the nucleus (protons + neutrons).


Why do heavy things sink?

Not all heavy things sink. Things that are more dense than the liquid around them will sink.


Does dense rock have low gravity?

No, dense rock does not have low gravity. Gravity is a fundamental force that acts on all objects with mass. The density of a rock refers to its mass per unit volume, but it does not affect the force of gravity acting on it.


If mass is 4g and density is 8gcc what is mass?

There is no way to tell without knowing the size of the object. If the object was a 4-foot ball of foam, then it would have a very low density. On the other hand, of the object were a tiny hunk of lead, then it would be very dense.


Why do some things float on water?

Objects float because of density. All objects are made up of atoms, and atoms have mass. In order to find the density of an object, divide the mass by volume. If the object is less dense the fluid it is in, then it will float.Because they are less dense than the water.We call the amount of mass in a given volume of space the density. For instance, we could measure the mass of some fresh water in a container. We would then divide the mass of the water by the volume of the container to find the density. However, if we filled the same container with salt water, it would have more mass because the ocean water has the mass of pure water plus the mass of the salt. Since there is more mass in the same volume, ocean water has a greater density then fresh water.For something to float, it must have a density that is less than in what it is floating in.It may seem odd that an enormous ship can float when steel is denser than water. However, if you look at the entire ship you see that there are many places filled with things less dense than water, like air. This means that the density of the entire ship is less dense than that of the water it floats in.To understand why things less dense then water float in water, go to the question "What is the buoyancy principle?" in the Related Questions section below.


Are dense objects light or heavy?

The heaviness of a material is determined by the product of the mass of an object and the force of gravity. The density of an object is determined by the ratio of its mass to the volume that it occupies. Something can be very heavy without being very dense, depending on its volume.


What are 2 things that are the same about all the waves?

do not have mass


Is planet Mars the densest planet?

Not at all. Mars is the least dense of the rocky planets. Earth is the densest planet in the Solar System because of its large iron core. Mercury and Venus are only slightly less dense.All of the Gas giants are much less dense than the rocky planets. The least dense, Saturn, is actually less dense than water. (All of the gas giants have a much greater mass than the rocky planets but density is mass divided by volume)


Which planet are you the lightest on?

Saturn is the least dense, but Mercury has the lowest mass.


What things must you know to find the density of a material?

To find the density of a material all you need to know is the mass and volume of the substance. if you knw the mas and volume...finding out the density is very simple...all you need to do is mass/volume and you will have the density of that substance!


Do protons and neutrons contain all of an atom's mass?

Excepting the mass of electrons (but this mass is very small)


What two things do all matter have in common?

All matter has mass and volume.