Name
Period
Date
Astronomy block 6 Test Terrestrial Planets
1. _____Aphelion
2. _____Asteroid belt
3. _____Astronomical unit (AU)
4. _____Belt
5. _____Coma
6. _____Comet
7. _____Eccentricity
8. _____Gas giant planets
9. _____Liquid metallic hydrogen
10. _____Meteor
11. _____Meteorite
12. _____Meteoroid
13. _____Meteor shower
14. _____Nucleus
15. _____Perihelion
16. _____Planetesimal
17. _____Precession
18. _____Retrograde Rotation
19. _____Terrestrial planets
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
n)
o)
p)
q)
r)
s)
inner Planets closest to Sun
small, solid core of a comet
planet's orbit, closest – Sun
Low, warm, dark cloud Jovian planets
Ring systems, many moons, and lack solid surfaces -Jupiter, Saturn, Uranus, and Neptune
rock and ice that consists of a nucleus, a coma, and one or
more tails that point away –Sun
meteoroid that creates a possible impact crater
exists as a layer in the Jovian atm
gas that forms when a comet's nucleus is heated
streak of light, meteoroid falls toward Earth
interplanetary material
particles burn up as they enter Earth's upper atmosphere
Located Between Mars and Jupiter
wobble in Earth's rotational axis
Orbit point farthest from Sun
particles that form planets by collisions / mergers
planet's “backward” motion
ratio of planet's orbit, circle = 1
Average Distance for the Sun and Earth
20. The inner four planets of our solar system are called the __________ planets and the next four are
called the __________ planets.
a) terrestrial, gas giant
b)rocky, gas-like c) hard, soft
d) gas giant, terrestrial
21.
a) 9
Which planets in the figure have solid surfaces?
b) 5-8 c) 1-4, 9 d) 1-4
22. Use the table to determine the largest terrestrial planet.
Planetary
Radius, r
(km)
Planetary
Mass, m (1024
kg)
Mercury 0.387
2439.7
0.3302
Venus
0.723
6051.8
4.8685
Earth
1.0
6378.1
5.9736
Mars
1.524
3397
0.64185
Planet
Orbital
Radius, a
(AU)
a) Venus b) Mars c) Mercury d) Earth
23. Why is Venus the hottest planet, even though it
isn't the closest to the Sun?
a) it's greenhouse effect
b) it's high albedo
c) it's high atmospheric pressure
d) it surfuric acid rain
24. Why can't astronomers directly observe the
surface of Venus without landing probes on the
surface?
a) The surface is covered by thick clouds.
b) Venus has a high albedo.
c) Venus has a clockwise spin.
d) The surface is covered by thick ice
sheets.
25. What is Olympus Mons?
a) a scarp on Mercury
b) a composite volcano on Venus
c) a large shield volcano on Mars
d) one of Mars' moons
26. The wobble in Earth's axis is called _______.
a) Precession
b) Tilt
c) Eccentricity d) Seasons
27. Mercury's extremely slow spin causes only
_____ days to pass in _____ of Mercury's years.
a) 3, 2 b) 1,200 c) 100, 1 d) 24, 1
Match the following-Protoplanet Nebula
a) star is established and protoplanets cool
b) solar nebula – protostar forms in center
c) nebula condenses and protoplanets start to form
and revolve around the protostar
28. _____Stage A
29. _____ Stage B
30. _____ Stage C
31. What doesn’t the International Astronomical
Union do?
a) Planet clear all matter from zone
b) Define the size of a Black hole
c) Dwarf planet can’t clear stuff from planet
path
d) Small solar system bodies comets meteors
meteorites asteroids
32. Which Terrestrial planet has an Orbit of 90 days?
a) Mercury b)Venus c) Earth d) Mars
33. Which Terrestrial planet has an Orbit of 226 days?
a) Mercury b)Venus c) Earth d) Mars
34. Which Terrestrial planets year is shorter than its
day?
a) Mercury b)Venus c) Earth d) Mars
35. Which Terrestrial planet has an Atmosphere
mainly CO2?
a) Mercury b)Venus c) Earth d) Mars
36. Which Terrestrial planet moves in a retrograde
rotation?
a) Mercury b)Venus c) Earth d) Mars
37. Why does Earth not, Mars have a Magnetic field?
a) Mars has a Solid iron core and a Liquid
outer core
b) Earth has a Liquid iron core and a Solid
outer core
c) Mars has a Liquid iron core and a Solid
outer core
d) Earth has a Solid iron core and a Liquid
outer core
38. How is a caldera formed?
a) Collapse of a Volcanic Plume
b) Collapse of a Volcanic Tephra
c) Collapse of the Volcanic Dome
d) Collapse of a Volcanic Lahar
39. The surface of Mars is mainly covered in _____
and ____.
a) Flat regions, Craters
b) Craters, Volcanoes
c) Volcanoes, Flat regions
d) Flat regions, Canyons
40. Define a polar cap.
a) Ice covered region near the Equator
b) Sand covered region near the maximum
and minimum latitudes
c) Ice covered region near the Perihelion
d) Ice covered region near the maximum and
minimum latitudes
Put the Planets in-order from Closest to the sun to
farthest
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
1.______________________
2.______________________
3.______________________
4.______________________
5.______________________
6.______________________
7.______________________
8.______________________
9.______________________
10.______________________
Match each set of three with the corresponding a b c
51. ____Aphelion
52. ____Asteroid
53. ____Astronomical unit
a) Average Distance for the Sun and Earth, 1
AU
b) orbit point farthest –Sun
c) between Mars and Jupiter, rocky stuff
54. ____Meteor
55. ____Meteorite
56. ____Meteoroid
a) interplanetary material
b) streak of light, meteoroid falls toward
Earth
c) meteoroid not moving through Earth’s
Atmosphere, poss. impact crater
57. ____Belt
58. ____Coma
59. ____Comet
a) gas that forms when a comet's nucleus is
heated
b) low, warm, dark cloud Jovian planets
c) rock and ice that consists of a nucleus, a
coma, and one or more tails that point
away –Sun
60. ____Meteor shower
61. ____Nucleus
62. ____Perihelion
a) planet's orbit, closest – Sun
b) small, solid core of a comet
particles burn up as they enter
c) Earth's upper atmosphere
63. ____Eccentricity
64. ____Gas giant planets
65. ____Ring Liquid metallic hydrogen
a) systems with many moons, and lack solid
surfaces
b) exists as a layer in the Jovian atm
c) ratio of planet's orbit, circle = 1
66. ____Retrograde Rotation
67. ____ Terrestrial planets
a) inner P. closest to Sun-MVEM
b) planet's “backward” motion