What is the density of the solar system?
Density is defined as the ratio of the mass of an object to the volume of space the object takes up. Mathematically, we would say D = M/V….Planetary Densities.
| Planet | Average Density (gm/cm3) | Required Mass for 70 cm3 (gm) |
|---|---|---|
| Earth | 5.5 | 385.0 |
| Mars | 3.9 | 273.0 |
| Jupiter | 1.3 | 91.0 |
| Saturn | 0.7 | 49.0 |
What does a planets density tell us?
A planet's density tells us more information than its size. You can see the size differences among the planets in our solar system with the naked eye.
Why is density so important in our solar system?
The reason that density is so important is that it provides an excellent diagnostic of whether or not an object is primarily made out of rocks, ices or gases. If the density is really less than 1.0, the object must be mostly made of gas. Only one object in our solar system, Saturn, has a density less than 1.0.
Which solar system has highest density?
Mercury and Earth are the densest planets in the Solar System (Figure 13) with densities similar to the iron-rich mineral haematite. Saturn, the least dense planet in the Solar System on the other hand, has a density lower than that of water.
What is a planets density influenced by?
As previously discussed, it depends on the distance of the planet from the Sun (which affects its temperature) and the strength of the planet's gravity.
Why Earth is the densest planet in the Solar System?
The calculated density of Earth shows that it is the densest planet in the Solar system. The reason for this large value of density is that the Earth does not have gaseous components and all of its mass is concentrated and compact. This reduces the volume of the planet and increases the density value.
What determines the density of a planet?
Masses of solar system planets and large bodies can be determined from the orbits of moons using Kepler's third law. From the radius R and the mass M one can calculate the mean density ¯ρ of a planet: ¯ρ = M V = M (4/3)π R3 .
How is density determined?
Density is obtained by dividing mass by volume. . Mass can be measured with scales or balances, and is expressed in grams or kilograms. By convention, the volume of liquids and gases is often expressed in units of liters or milliliters, measured with glassware.
Which planet in the Solar System is least dense?
The least dense planet in the Solar System is Saturn, which has an average density of only 687 kg/m3 (42.8 lb/cu ft). By comparison, Earth's average density is 5,513 kg/m3 (344 lb/cu ft). The mass of Saturn is mostly made up of helium and hydrogen.
How does Earth’s density compare to the densities of other planets?
Density of Earth: Earth has the highest density of any planet in the Solar System, at 5.514 g/cm3. This is considered the standard by which other planet's densities are measured. In addition, the combination of Earth's size, mass and density also results in a surface gravity of 9.8 m/s².
Why is the Earth the densest planet in the Solar System?
The calculated density of Earth shows that it is the densest planet in the Solar system. The reason for this large value of density is that the Earth does not have gaseous components and all of its mass is concentrated and compact. This reduces the volume of the planet and increases the density value.
Which is the densest planet in the Solar System quizlet?
Which is the densest planet in the solar system? Venus.
How does density of the planets vary with distance from the sun?
As you can see, the densities of the Solar planets varies widely. Whereas those that are closer to the Sun are terrestrial and quite dense, those that inhabit the outer Solar System are largely gaseous and liquid, and are therefore less dense on average.
Why Earth is the densest planet in the solar system?
The calculated density of Earth shows that it is the densest planet in the Solar system. The reason for this large value of density is that the Earth does not have gaseous components and all of its mass is concentrated and compact. This reduces the volume of the planet and increases the density value.
How does density of the planets vary with distance from the Sun?
As you can see, the densities of the Solar planets varies widely. Whereas those that are closer to the Sun are terrestrial and quite dense, those that inhabit the outer Solar System are largely gaseous and liquid, and are therefore less dense on average.
What two things 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. Mathematically density is equal to a ratio where d = m/v.
What do you mean by density?
density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.
Which planet is more dense?
Earth Earth has the highest density of any planet in the Solar System, at 5.514 g/cm3. This is considered the standard by which other planet's densities are measured. In addition, the combination of Earth's size, mass and density also results in a surface gravity of 9.8 m/s².
Do the more massive planets in the solar system tend to be less dense than the lower mass planets?
The more massive planets in the solar system tend to be less dense than the lower mass planets. Within the frost line, planetesimals were composed entirely of rock and outside the frost line planetesimals were composed entirely of ice.
Why are the inner planets made of denser materials than the outer planets?
Why are the inner planets made of denser materials than the outer planets? In the inner part of the nebula only metals and rocks were able to condense because of the high temperatures, whereas hydrogen compounds, although more abundant, were only able to condense in the cooler outer regions.
Does density change on different planets?
A planet's density is related to its composition. The four inner terrestrial planets are dense compared to the four outer planets. The inner planets are made up mainly of dense, solid rock. The outer planets are composed primarily of gas, so their overall density is lower.
What determines density?
Density is obtained by dividing mass by volume. . Mass can be measured with scales or balances, and is expressed in grams or kilograms. By convention, the volume of liquids and gases is often expressed in units of liters or milliliters, measured with glassware.
What are the three properties of density?
General Properties of Density
- Mass of the Object. The mass of the object being measured for density is a part of the calculation. …
- Volume. Volume also decides the final density value. …
- The Calculation. Putting volume and mass together in a calculation defines density. …
- Water. …
- Ice.
Apr 24, 2017
How does density work?
Density is a measure of how heavy something is compared to its size. If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float. Density is a characteristic property of a substance and doesn't depend on the amount of substance.
What factors affect density?
One factor affecting the density of a material is how concentrated the atoms are in a given volume. In some cases, materials made of atoms with a lower atomic weight have a greater density than those with a higher atomic weight, due to the atoms being more tightly packed.
Do larger planets have more density?
The giant planets are less dense overall because they are made mainly of gases, and the inner rocky planets are more dense because they are made mainly of rock.
Why are planets so dense?
All of the planets in our Solar System began to form this way, but close to the Sun the temperature was too high for volatiles (gases like water and methane) to condense, so only the materials with a higher melting point (and higher density) were able to form at this point.
What causes the difference in densities between inner and outer planets?
This is because the outer planets are in a gaseous state while the inner planets are solid and more compact. Consequently, the density of the inner planets is greater than that of the outer planets.
Why are planets closer to the Sun denser?
All of the planets in our Solar System began to form this way, but close to the Sun the temperature was too high for volatiles (gases like water and methane) to condense, so only the materials with a higher melting point (and higher density) were able to form at this point.
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. Mathematically density is equal to a ratio where d = m/v.