Planets/Quiz - Wikiversity

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.

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1 Quiz
2 Hypotheses
3 See also
4 External links

Quiz

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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