Through radar observations it was found that Venus'-

rotation on its axis is retrograde

What factor caused different planets in our solar system to form out of different types of material?

variation in temperature throughout the solar nebula;

The presence of a magnetic field is a good indication that-

we have a liquid metal outer core, spinning rapidly as we rotate

Compared to Jupiter, Saturn's atmosphere is-

calmer with fewer disturbances of storms

What is the reason that it is so difficult to view Mercury from Earth?

Mercury is always very close to the Sun.

Earth and Venus are often called sister planets; in which ways are they most alike?

size, density, and surface gravity

takes longer than its orbit around the Sun

Jupiter gives back into space twice the energy it gets from the Sun. Where is this energy from, for the most part?

the slow escape of gravitational energy left from its formation

According to the International Astronomical Union (IAU), why is Pluto no longer considered a planet?

It didn't clear smaller bodies from the neighborhood around its orbit.

What aspects of a planet's orbit are nearly the same for most planets?

shape and tilt from the ecliptic

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Solar System Review-Astro 24

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Questions 19

Answers

1
Through radar observations it was found that Venus'-
atmosphere is changing rapidly
orbit around the Sun is clockwise
orbit around the Sun is speeding up
rotation on its axis is retrograde
2
What factor caused different planets in our solar system to form out of different types of material?
variation in temperature throughout the solar nebula;
angular momentum of forming planet:
angular momentum of the solar nebula pushing heavy elements outwards
quantity of dust particles in solar nebula:
3
Looking at the solar system diagram, pick the best description of the planets labeled as X.
low density, rocky, and small
high density, gaseous, and large
low density, gaseous, and large
high density, rocky, and small
4
The presence of a magnetic field is a good indication that-
the Earth's interior is similar to Mercury's. as both have fields
we have a liquid metal outer core, spinning rapidly as we rotate
the Earth's interior must be completely molten to the center
a huge iron meteorite lies somewhere high up in the mantle, not in the core
5
Compared to Jupiter, Saturn's atmosphere is-
more uniform with no significant variation in color in lower cloud levels
more violent with larger storm phenomena easily viewed from Earth
more colorful with variations in color easily viewed from Earth.
calmer with fewer disturbances of storms
6
Alternating zones of rising and sinking gas in Jupiter's atmosphere-
produced the ring system discovered by Voyager
create light and dark bands
cause Jupiter's magnetic field to ripple
generate their own magnetic fields
7
What part of a comet would go in the white oval?
Nucleus
Coma
Tail
To the Sun
8
Identify the ion tail of the comet in the diagram.
a
d
c
b
9
What is the reason that it is so difficult to view Mercury from Earth?
Mercury is very dim.
Mercury cannot be seen at night.
Mercury is always very close to the Sun.
Mercury is very small.
10
Asteroid belt is at a distance of 503 million kilometers from the Sun. Between which two planets is theis belt located?
Jupiter and Saturn
Mars and Earth
Saturn and Uranus
Mars and Jupiter
11
On which planet can the pole remain in darkness for 42 years, and then have 42 years of constant daylight?
Neptune
Saturn
Jupiter
Uranus
12
Which of the following is the most widely accepted explanation for the origin of our solar system?
the solar nebular theory
the steady state theory
the giant impact hypothesis
the big bang theory
13
Earth and Venus are often called sister planets; in which ways are they most alike?
surface temperature and pressure
size, density, and surface gravity
atmospheric composition and density
cloud composition and meteorology
14
Venus' rotation-
axis is highly tilted to its orbital plane, causing large seasonal changes.
takes longer than its orbit around the Sun
is the fastest of the terrestrial planets
is counterclockwise, like the other planets
15
What kind of asteroid is being represented by the red orbit that the arrow is pointing at?
Amor Asteroid
Trojan Asteroid
Regular Asteroid
Apollo Asteroid
16
Jupiter gives back into space twice the energy it gets from the Sun. Where is this energy from, for the most part?
the impact energy of comets like SL-9
helium rain descending into its mantle and core
the slow escape of gravitational energy left from its formation
the radioactive decay of U-238 in its iron-rich core,like with the Earth
17
According to the International Astronomical Union (IAU), why is Pluto no longer considered a planet?
It didn't clear smaller bodies from the neighborhood around its orbit.
Its mean distance from the sun is greater than 35 astronomical unites (AU).
It is too massive to assume a nearly rounded shape.
It does not follow an elliptical orbit around the Sun.
18
Which of the following is generally considered to be a minor body in the solar system?
planet
neutron star
white dwarf
asteroid
19
What aspects of a planet's orbit are nearly the same for most planets?
tilt from the ecliptic and distance from the Sun
orbital period and shape
shape and distance from the Sun
shape and tilt from the ecliptic

Solar System Review-Astro 24 Flashcards | StudBud