Astronomy Unit 2 Test

Why can't you see Venus' surface in a picture from outer space? A. It is too clouded. B. It is too bright. C. It is too dark. D. It is too small to photograph E. It is too big to photograph

A

How long is Jupiter's rotational period? A. 24 hours B. 10 hours C. 12 hours D. None of the above

B

What are scarps on Mercury? A. Clouds that are found in Mercury's atmosphere B. Cliffs caused by the collapse of Mercury's crust C. Earthquakes caused by meteors D. Impact craters from meteors E. Mountain ranges cause by shift in plate tectonics

B

What are the layers of Earth in order from the innermost layer to the outermost layer? A. Inner core, outer core, crust, mantle B. Inner core, outer core, mantle, crust C. Crust, mantle, outer core, inner core D. Crust, mantle, inner core, outer core

B

What is the surface temperature of Saturn? A. 15 K B. 0 K C. 97 K D. 1000 K

C

Choose the second-most abundant gas in Earth's atmosphere: A. Water vapor B. Nitrogen C. Carbon dioxide D. Oxygen

D

How long is a day (noon to noon) on Mercury? A. 1 Earth day B. 365 Earth days C. 30 Earth days D. 176 Earth days

D

Mercury has __% the gravity of Earth. A. 29 B. 32 C. 35 D. 38 E. 42

D

Which planet rotates on its access opposite to its direction around the sun, also known as retrograde rotation? A. Earth B. Mars C. Uranus D. Venus

D

The center of the earth is about the same temperature as: A. The surface temperature of Mercury B. The surface temperature of Mars C. The surface temperature of the Moon D. The surface temperature of Venus E. The surface temperature of the Sun

E

A planet in our solar system is the ultimate example of the greenhouse effect. Which one is it? A. Venus B. Mars C. Neptune D. Saturn

A

About how long did each probe that Russia sent to Venus last? A. 20 minutes B. 20 years C. 20 days D. 20 seconds E. never reached

A

Because of its inability to "self-heal" the surface of Mercury is covered in: A. Craters B. Holes C. Mountains D. Canyons

A

How do you measure the density of Earth? A. Mass/volume B. Volume/mass C. Mass/surface are D. Surface area/mass

A

How long is Jupiter's orbital period? A. 11.9 years B. 1 year C. 23 years D. 1.9 years

A

How many Jupiters could be placed in the sun? A. 1000 B. 200 C. 2000 D. 100

A

How many degrees warmer is Earth with the greenhouse effect? A. 33 degrees B. 20 degrees C. 41 degrees D. 27 degrees

A

How many ring groups does Saturn have? A. 7 B. 8 C. 9 D. 10

A

Mercury has a large, iron-rich core. A. True B. False

A

Mercury is a terrestrial planet. What is a terrestrial planet primarily composed of? A. Rock B. Water C. Gas D. Ice

A

On Jupiter, the strongest winds are equatorial westerlies, which have speeds of _______ km/h. A. 550 km/h B. 1010 km/h C. 650 km/h D. 2050 km/h E. 100 km/h

A

Saturn's Largest Moon is A. Titan B. Mimas C. Earth's Moon D. Kepler

A

The Earth's interior is not uniform. The materials have been separated by density through a process known as _____? A. Differentiation B. Plate tectonics C. Newton's Law of Gravity D. Alfred Wegner's Law of Pressure E. Introspection

A

True of False: Saturn was the most distant of the five Planets visible to the ancients in the early 1600's. A. True B. False

A

Venus's temperature is hot enough to melt Lead. A. True B. False

A

What are the 4 moons of Jupiter? A. Io, Callisto, Ganymede, Europa B. Io, Phobos, Castillo, Europa C. Luna, Ganymede, Castillo, Europa D. Titan, Luna, Leda, Castillo

A

What is Mercury's highest surface temperature? A. 840 F B. 520 F C. 100 F D. 1,342 F

A

What is the atmospheric pressure per pound per square inch on Venus? A. 1,323 pounds per square inch B. 1,021 pounds per square inch C. 147 pounds per square inch D. 14 pounds per square inch

A

What is the average air pressure on the surface of the Earth? A. 14.7 pounds per square inch B. 0 pounds per square inch C. -9.8 pounds per square inch D. 1 pound per square inch E. It is unknown

A

What is the geological process that explains the movement of continental and oceanic plates, which cause earthquakes? A. Plate Tectonics B. Hot Spots C. Divergent Plates D. Convergent Plates

A

What other planet has about a 24 degree tilt on its axis just like Earth? A. Mars B. Jupiter C. Pluto D. Venus

A

What two principal gases make up Earth's atmosphere? A. Oxygen and Nitrogen B. Nitrogen and Argon C. Oxygen and Helium D. Oxygen and Argon E. None of the above

A

What type of Planet is Jupiter? A. Gas Giant B. Terrestrial C. Dwarf D. Inner

A

Which Galilean moon would be most likely to host life? A. Europa B. Callisto C. Io D. Ganymede

A

Which is hotter: the surface of Venus or the surface of Mercury? A: Surface of Venus B: Surface of Mercury

A

Which of the following has the strongest tidal effect on Earth? A. The Moon B. Mars C. Venus D. The Sun

A

Which planet is also as geologically dominated by impact craters as the Moon? A. Mercury B. Venus C. Earth D. Mars E. Jupiter

A

Besides heating from sunlight, what else contributes to the Earth's average temperature being higher than one would expect? A. There is no explanation and that worries scientists. B. Carbon dioxide (and other gases) in the atmosphere cause a greenhouse effect. C. Solid material hitting the Earth from space heats it up. D. The heat given off by living things makes our planet warmer. E. Continental plate friction warms up the Earth's surface.

B

Compared to the pressure of being underwater, what is the pressure of Venus' surface like? A. it is like being 100 feet underwater B. 3000 feet underwater C. 20 feet underwater D. 1500 feet underwater E. Venus has no pressure

B

Convection in the ___ causes weather on Earth. A. stratosphere B. troposphere C. mesosphere D. ionosphere

B

How long is Venus's orbit around the sun? A. 300 Days B. 223 Days C. 108 Days D. 290 Days

B

How many MAIN rings does Saturn have? A. 5 B. 3 C. 8 D. 12

B

How many astronomical units (AU) is Mercury from the Sun? A. 3.8 AU B. 0.38 AU C. 1.00 AU D. 10.0 AU

B

How many moons does Venus have? A. 1 B. 0 C. 2 D. 4

B

How many times greater is Venus' atmosphere density than that of Earth's? A. 300x Greater B. 100x Greater C. 75x Greater D. 3x Greater

B

How much of Earth's surface is covered in water? A. 85% B. 70% C. 75% D. 60% E. 55%

B

Mercury is the second densest planet following: A. Jupiter B. Earth C. Uranus D. Mars

B

Mercury is the______ planet in our solar system. A. biggest B. smallest C. coldest D. warmest

B

Mercury's orbit is... A. Less elliptical than Earth's B. More elliptical than Earth's C. Equally elliptical with Earth's D. None of the above

B

Other than Earth, which is the only terrestrial planet with a significant magnetic field today? A. Earth B. Mercury C. Venus D. The Moon E. Mars

B

Saturn takes approximately how many Earth years to make one revolution around the Sun? A. 12 B. 29 C. 1 D. 24

B

Saturn's rings are composed of what? A. Dust and debris B. Water ice C. Frozen ice D. Rock and ice

B

The equatorial winds on Saturn are _________ and _________ compared to those on Jupiter. A) easterly; weaker B) westerly; stronger C) northern; equal D) southern; stronger

B

Venus is extremely hot during the day and extremely cold during the night. A. True B. False

B

What causes the magnetic field found on Earth? A. Electromagnetic radiation from the sun that polarizes metals in the crust B. Electric currents created by the flow of molten iron in the outer core C. Energy from the Earth's rotation around its axis D. Energy from seismic waves that polarize the mantel

B

What planet is so similar to Earth that they can be considered sister planets? A. Mars B. Venus C. Mercury D. Saturn

B

Which moon is the largest in our Solar System? A. Earth's Moon B. Ganymede C. Callisto D. Europa E. Crete

B

Which of the following is NOT a Galilean Moon? A. Io B. Gaderene C. Europa D. Callisto

B

Which statement is true? A. Mercury has longer years, shorter days B. Mercury has shorter years, longer days C. Mercury has no days just years D. Mercury isn't a planet

B

Which terrestrial planet has the most volcanoes? A. Mercury B. Venus C. Earth D. Mars

B

Why does Mercury have scars on its surface? A. Yearly meteor showers occurred as the planet formed. B. Crust material compressed in on the core below as it cooled. C. The planet is expanding by 1.87 cm per year, and therefore the crust is continually cracking. D. The planet is slowly melting by .05 inches per year. The melting is causing craters to disappear and scars to appear.

B

Why is the atmosphere of Mercury so thin? A. Solar Winds blow it away B. There is too little gravity to hold it down C. Radioactive Decay D. The dust from micrometeorites makes it too dense

B

How long does it take Mercury to completely orbit the sun? A. 7 days B. 1 day C. 88 days D. 3 months E. 6 weeks

C

How many moons does Jupiter have in total? A. 87 B. 59 C. 67 D. 41

C

Of the following, which planet still has its primary atmosphere? A. Mercury B. Earth C. Jupiter D. Mars

C

The atmosphere of Venus is composed of what percent of carbon dioxide? A. 83% B. 5% C. 96% D. 55%

C

The layer of clouds covering venus are mostly made up of what? A. water vapor B. carbon monoxide C. sulphuric acid D. carbon dioxide

C

The mass of the earth is made up mostly of which two elements? A. Iron and Nickel B. Oxygen and Carbon Monoxide C. Iron and Oxygen D. Iron and Carbon Monoxide

C

What differentiates the surfaces of the Earth and the Moon? A. The Moon has plates under the surface. B. The Earth has craters whereas the Moon has volcanoes and mountain ranges. C. Earth has volcanoes and mountain ranges, whereas the Moon has craters. D. The moon has radioactive elements on the surface. E. Nothing differentiates the Earth and Moon concerning their surfaces.

C

What is at the center of the earth? A. Water B. The lightest elements C. The heaviest elements D. Nothing - it is hollow

C

What is the closest planet to the sun in our solar system? A. Mars B. Earth C. Mercury D. Pluto

C

What is the gap located in between Saturn's rings called? A. The Titan Division B. The Pandora Division C. The Cassini Division D. The Ring Division E. There is no gap in between the rings

C

What is the most dense planet in our solar system? A. Saturn B. Jupiter C. Earth D. Neptune

C

What is the rotational period of Jupiter? A. 16 hours 6 minutes B. 10 hours 39 minutes C. 9 hours 56 minutes D. 17 hours 14 minutes

C

When did Earth's secondary atmosphere first appear? A. 450,000 years ago B. 1 billion years ago C. 4 billion years ago D. 300 million years ago E. None of the above

C

Which Galilean moon is known for its rocky and volcanic surface? A. Ganymede B. Callisto C. Io D. Europa

C

Which is TRUE about Jupiter? A. Smaller mass and lower density than Earth B. Smaller mass but higher density than Earth C. Larger mass but lower density than Earth D. Larger mass and higher density than Earth

C

Which of these is not true about Venus? A. It has a thicker crust than Earth's B. It's energy comes from within Venus C. It has plate tectonics D. It has a thick atmosphere

C

Which planet can be considered the "flattest" planet in the solar system due to density and rotation? 1. Mars 2. Venus 3. Saturn 4. Earth

C

Which planet has the strongest magnetic field? a. Saturn b. Jupiter c. Mars d. Earth

C

Which planet is the only planet in our solar system that is less dense than water? A. Venus B. Jupiter C. Saturn D. Uranus

C

Which two planets both have atmospheres composed of 96% Carbon Dioxide? A. Venus and Earth B. Mercury and Saturn C. Venus and Mars D. Pluto and Neptune

C

Why can't we land on Jupiter? A. The atmosphere is too dense and we cannot get through B. It's gravity is too strong and we would not be able to leave C. The surface is liquid hydrogen D. We have landed on Jupiter

C

____ is an energy source for Saturn. A. Solar radiation B. Natural gases C. Helium precipitation D. Wind Power E. Coal

C

Jupiter's cloud belts and zones are made primarily of A. Ammonia crystals B. Sulfur C. Mixtures of the two compounds D. All of the above

D

Mercury's surface is covered in craters. How were these craters formed? A. Movement of Mercury's crust B. Earthquakes C. Fluvial erosion D. Comets/asteroids E. Volcanism

D

Saturn is made of mostly what gas? A. Methane B. Carbon-Dioxide C. Nitrogen D. Hydrogen E. Oxygen

D

Saturn's rings reflect what percentage of the sunlight that falls on them? A. 30% B. 40% C. 50% D. 60%

D

The moon "Europa" has an outer shell made of what? A. rock B. lava C. dust D. water ice

D

Venus's surface temperature is ___°C A. 389 B. 411 C. 439 D. 462 E. 521

D

What are earthquakes fueled by? A. Tidal forces B. Kinetic energy stored in the mantle C. Clashing of warm and cold fronts in the Earth's atmosphere D. Energy from the Earth's core

D

What is a scarp? A. A type of volcano B. Craters on the surface of the moon C. Former riverbeds on the surface of Mars D. Cliffs on the surface of Mercury

D

Where did the heavy elements that make up the bulk of the earth originate? A. In meteorites B. In the Big Bang C. In the Sun D. In a supernova

D

Which Galilean Moon is dominated by impact craters? A. Io B. Europa C. Ganymede D. Callisto

D

Which ice-covered Saturn moon has geysers of water ice at its south pole? A. Eruptus B. Rhea C. Dione D. Enceladus

D

Which of these planets doesn't have any moons orbiting it? A. Earth B. Mars C. Pluto D. Venus

D

The large circular coronae on Venus are A. the outer rings of material thrown up by giant impacts long ago. B. rings of mountains created by continental plates grinding against each other. C. impact basins flooded with lava, just like the maria on the Moon. D. tracks for racing dune buggies on the surface of the sandy planet. E. large regions where hot magma rising from the interior of Venus puts pressure on the surface material.

E

What are Saturn's two largest moons called? a. Rhea and Europa b. Proserpine and Gaea c. Gaea and Titan d. Kronos and Enceladus e. Titan and Rhea

E

What is the Great Red Spot on Jupiter? A. a huge hole B. A lot of dirt C. a clump of volcanoes D. a huge crater E. a large persistent anticyclonic storm

E