Why does Earth have the strongest magnetic field among the terrestrial worlds?
Why does Earth have the strongest magnetic field among the terrestrial worlds? It is the only one that has both a partially molten metallic core and reasonably rapid rotation. Which of the following most likely explains why Venus does not have a strong magnetic field? Its rotation is too slow.
What are the two geological features that appear to set Earth apart from other terrestrial worlds in our solar system?
What are the two geological features that appear to set Earth apart from all the other terrestrial worlds? Plate tectonics and widespread erosion. neither of these features appears to exist on any terrestrial world in our solar system.
Which of the following is not generally true of all the terrestrial world Lithospheres group of answer choices?
astronomy final shelley
| Question | Answer |
|---|---|
| Which of the following is not generally true of all the terrestrial world lithospheres? | The lithosphere is broken into a set of large plates that float upon the softer rock below. |
Which internal heat source still generates heat within the terrestrial worlds?
Which internal heat source still generates heat within the terrestrial worlds today? Heat from radioactive decay.
Which of the terrestrial worlds has the strongest magnetic?
Earth Which of the four terrestrial planets has the strongest magnetic field, Mars, Mercury, Venus, or Earth? The Earth, by far.
Which of the terrestrial worlds had the strongest magnetic field?
Earth's magnetic field is categorized as moderately strong, the gas giants and ice giants have extremely strong magnetic fields, Mercury has a weak magnetic field, while Mars and Venus have no measurable magnetic fields. Jupiter is the largest planet in the Solar System and therefore has the strongest magnetic field.
What is the main factor that makes Earth more geologically active than the other terrestrial planets?
Internal heat Why is Earth geologically active? Internal heat drives geological activity. – Larger the planet, more heat retained. – Circulation of liquid outer core creates Earth's magnetic field.
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.
What do we mean when we say that the terrestrial worlds underwent differentiation quizlet?
What do we mean when we say that the terrestrial worlds underwent differentiation? When their interiors were molten, denser materials sank toward their centers and lighter materials rose toward their surfaces.
What is the main source of heat inside the terrestrial planets?
Currently the terrestrial planets' primary source of heat is radioactivity.
Which terrestrial planets have a magnetic field?
At the present time, only the Earth and Mercury appear to have a significant dipole magnetic field. However, the Moon, and possibly Mars, appear to have had ancient planetary dynamos.
What is the terrestrial world?
A terrestrial planet, telluric planet, or rocky planet, is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets accepted by the IAU are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth and Mars.
What are the two main factors that control how a terrestrial planet’s surface will evolve?
The primary factors that appear to make Earth habitable are its relatively large size and its distance from the Sun. Distance from the Sun, along with the greenhouse effect, determines surface temperature.
Which is the most geologically active terrestrial world why?
Which is the most geologically active Terrestrial world? Why? Earth because it has cooled most slowly.
How are terrestrial planets formed?
They formed either by collisions among planetary embryos from the inner solar system or by accreting sunward-drifting millimeter-sized “pebbles” from the outer solar system.
What are inner planets made of?
Every inner planet has a core. The cores of Mercury, Venus, and Earth are composed of iron-nickel. Mars's core is made of liquid iron sulfide mixed with some nickel….Structure.
| Feature | % of radius |
|---|---|
| Atmosphere | 1.9% |
What is the terrestrial worlds lithosphere?
Short answer: the Earth is big enough to still have a hot interior. The “lithosphere” is the cool rigid rock that forms a planet's outer layer: the crust and some of the mantle. The lithosphere floats on the lower layers. The thickness of the lithosphere controls many geological processes.
Which of the following types of material can condense into what we call ice at low temperatures?
Which of the following types of material can condense into what we call ice at low temperatures? –Hydrogen compounds such as water, ammonia, and methane are gaseous at high temperature but condense into ice at low temperature.
What are terrestrial planets made of?
Terrestrial planets (Earth sized and smaller) are rocky worlds, composed of rock, silicate, water and/or carbon.
How does a terrestrial planet is formed?
Summary: The terrestrial planets formed close to the Sun where temperatures were well suited for rock and metal to condense. The jovian planets formed outside what is called the frost line, where temperatures were low enough for ice condensation.
What makes a terrestrial planet?
From top: Mercury, Venus, Earth and Mars. The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma. The terrestrial planets are the four innermost planets in the solar system.
What is the main factor that makes Earth more geologically active than the other terrestrial planets quizlet?
Why is the Earth geologically active? Earth is Geologically active because it still has heat within the core. What is particularly unique about the Earth's atmosphere? It protects the surface against solar radiation, makes our planet warm enough for liquid water to exist, and it is very thin.
Which material was available for terrestrial planet formation?
Terrestrial Planet Formation The heavier rocky and metallic materials are better suited to condense at higher temperatures. Thus, the inner planets are made almost entirely of rock and metal and form the group known as the terrestrial planets.
Why are terrestrial planets mostly made out of iron and silicon?
We have elements in our solar system like iron and silicon because they were formed by earlier generations of stars that blew up as supernovas, and spewing them out into space.
Why do planets have cores?
The inner planets formed about 4.5 billion years ago as huge, hot balls of solids and gases. The Solar Wind, coming from the unstable sun, washed away much of the atmospheres. Eventually, the planets' metals sank to form a core and created magnetic fields which blocked the charged particles.
Why are the terrestrial planets made of denser materials than the jovian planets?
– The Sun's gravity gathered dense materials into the inner solar system. – Gravity compresses terrestrial planets to a higher degree, making them denser.
Why do planets have iron cores?
The clumps closer to the sun would have been exposed to a stronger magnetic field and thus would contain more iron than those farther away from the sun. As the clumps coalesced and cooled into spinning planets, gravitational forces drew the iron into their core.
What are terrestrial planets made up of?
Terrestrial planets (Earth sized and smaller) are rocky worlds, composed of rock, silicate, water and/or carbon.
What is the main factor that makes Earth more geologically active?
Why is Earth geologically active? Internal heat drives geological activity. – Larger the planet, more heat retained. – Circulation of liquid outer core creates Earth's magnetic field.
Why are planets cores made of metal?
differentiation, occurred though chemical segregation based on density. When the early Earth heated, the heavy element iron (Fe) sank through the abundant lighter elements oxygen (O) and silicon (Si). The metallic core of Earth formed first, and then gathered lighter elements around it to form its crust and mantle.