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Planets/Quiz

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This animation made from Hubble photo maps shows Pluto rotating. Credit: Aineias, NASA, ESA, and M. Buie (Southwest Research Institute). Derivative work: Aineias.

Planets is a lecture and an article. Planetary science is a field within astronomy that focuses on spheroidal, substellar astronomical objects apparently in an orbit around a star.

You are free to take this quiz based on planets at any time.

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Quiz

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1

What is the decoy?

instead of

2 Which of the following are theoretical radiation astronomy phenomena associated with a wanderer?

possible orbits
a charged particle wind
gravity
near the barycenter its system
swirls of tan, green, blue, and white in the liquid methane
electric arcs
chlorophyll-containing phytoplankton aloft in an upper atmosphere

3 Before the current era and perhaps before 6,000 b2k which classical planet may have been observed as a pole star for the Earth?

4 Which of the following is characteristic of the scattered disc

a distant region of the solar system
the dwarf planet Eris
orbital eccentricites ranging up to 0.8
inclinations as high as 50°
perihelia greater than 30 AU
Dysnomia

5 True or False, The astronomer Clyde Tombaugh is the discoverer of Charon.

TRUE
FALSE

6 Which of the following is not a phenomenon associated with Ceres?

the smallest identified dwarf planet
Ceres is spheroidal
it is in orbit around the Sun
it appears to be in hydrostatic equilibrium
it has not cleared its neighborhood
Ceres is one of the two natural satelites of Mars

7 True or False, The observations of planetary motion agree with computed orbits to the accuracy of the observations.

TRUE
FALSE

8 That part of outer space between planets and their star(s) is called?

9 Which of the following are theoretical radiation astronomy phenomena associated with a planet?

possible orbits
a hyperbolic orbit
nuclear fusion at its core
nuclear fusion in its ionosphere
near the barycenter of its stellar system
accretion
electric arcs
impact craters

10 True or False, A planet has been referred to as a moving light in the sky.

TRUE
FALSE

11 Which of the following is not a studied characteristic of a planet?

an orbit around a star
a hydrostatic equilibrium (nearly round) shape
nucleosynthesis
has cleared the neighbourhood around its orbit
an initially fractionated elemental composition

12 True or False, Neptune is a gas dwarf.

TRUE
FALSE

13 Which of the following is not a phenomenon associated with the planet Mars?

iron oxide
the MESSENGER spacecraft
water
meteorites on Earth
Olympus Mons
climate

14 True or False, The average value of the radius of the Earth's orbit around the Sun is a displacement.

TRUE
FALSE

15 The Sun as a planet has what property?

it's subject to lunar eclipses
it passes once a year through the Big Dipper
its interior structure has been studied with radar
optical reflectance studies have found evidence of magnesium
it has a surface temperature of ~700 K
it is a wanderer

16 True or False, To ancient astronomers stars remain relatively fixed over the centuries while planets move an appreciable amount during a comparatively short time.

TRUE
FALSE

17 Complete the text:

The majority of known asteroids orbit the Sun between the orbits of

and

.

18 Which of the following are theoretical radiation astronomy phenomena associated with a satellite in orbit around the Earth?

background radiation
a charged particle wind which emanates out of a beam line
gravity
near the barycenter for the Earth-Moon system
swirls of tan, green, blue, and white in the water
electric arcs
chlorophyll-containing phytoplankton aloft in the upper atmosphere

19 Yes or No, The Sun is a classical planet.

Yes
No

20 Which of the following is associated with Pluto?

a dwarf planet
a member of the Oort belt
the northern polar region has brightened
the southern polar region has darkened
its overall redness has decreased
extreme axial tilt

21 Phenomena associated with Kepler-36b?

has a gaseous surface
about 30% of its mass is iron
about 4.5 times the mass of Earth
has a rocky surface
discovered by the Kepler spacecraft
about 1.5 times as large as the Earth

22 The Sun as a classical planet has which characteristics?

depending on latitude the Sun passes overhead every day on Earth
the size of its disc is very close to that of the Moon
it appears to revolve along the ecliptic
it is named after Sunday
Helios is the lord of the Sun
Helios is a son of Jupiter

23 Venus is not known historically for which of the following?

being in orbit around the Sun in 10,000 b2k
imaged by the Magellan probe
a gas dwarf when viewed in the ultraviolet
almost as large as the Earth
may have appeared comet-like in human memory
having a high surface temperature

24 Before the current era and perhaps before 6,000 b2k which classical planet may have been green?

25 Which of the following is not a phenomenon usually associated with solar wanderers?

green aurora
oxygen
production of 7Be
carbon or C2
airglow
nitrogen
olivine

26 With respect to protoplanetary disks what green mineral has been found?

27 If Osiris in ancient Egyptian mythology/observational astronomy corresponds to Saturn, and Horus is the son of Osiris, what classical planet does Horus correspond to?

the green planet
Mercury
Mars
Uranus
Venus
Jupiter

28 Who first proposed the hypothesis that the Sun is at rest, while the Earth and the planets rotate about the Sun?

29 What term was first used with reference to the transfer of momentum from the Sun to the planets in 1942

30 Name a classical planet that was not apparently seen in the sky before 5102 b2k

31 To the Babylonians, this object represented their god Marduk.

32 Johannes Kepler is not known for which of the following?

being an astrologer
a key figure in the 17th century scientific revolution
Euclidean geometry
projective geometry
if a straight line is extended to infinity it will meet itself at a single point at infinity, thus having the properties of a large circle
Rudolphine Tables

33 Soon after the invention of radar astronomy, what classical planet was detected

34 Which of the following may be characteristic of orbital theory?

a hyperbolic pass
stellar association
may point away from a stellar association
eccentricity
obliquity
precession


Hypotheses

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Main resource: Hypotheses
  1. Planets are only those substellar astronomical objects in revolution around one or more stars.

See also

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