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QUESTION 1 1. Pluto is an example of a(n) a. planet. b. dwarf planet. c. eccentric object. d. moon. 1 points QUESTION 2 1. What kind of materials


QUESTION 1

1.    Pluto is an example of a(n)

a.

planet.

b.

dwarf planet.

c.

eccentric object.

d.

moon.

1 points  

QUESTION 2

1.    What kind of materials only melt at high temperatures?

a.

nebular materials

b.

refractory materials

c.

volatile materials

d.

condensed materials

1 points  

QUESTION 3

1.    A meteoroid that strikes Earth after having made it through the atmosphere without burning up is a

a.

asteroid.

b.

meteorite.

c.

meteor.

d.

comet.

1 points  

QUESTION 4

1.    Which of the following does NOT lie within our solar system?

a.

the Kuiper Belt

b.

interplanetary space

c.

interstellar space

d.

the asteroid belt

1 points  

QUESTION 5

1.    The dust and debris that covers the Moon's surface is known as

a.

lunar regolith.

b.

space weathering.

c.

topsoil.

d.

micrometeorite.

1 points  

QUESTION 6

1.    Which of the following best explains the amount of micrometeorite impacts on Earth relative to the Moon?

a.

The Moon and Earth are impacted with the same frequency.

b.

The Moon and Earth are impacted with the same frequency, but because the moon is smaller, the impact density is greater.

c.

Earth receives fewer impacts than the Moon because the majority of micrometeorites approaching Earth encounter the Moon first and thus impact it instead.

d.

Earth receives fewer impacts than the Moon because the majority of micrometeorites approaching Earth burn up in the atmosphere.

1 points  

QUESTION 7

1.    Observe the image of the moon below. What feature is indicated?

a.

Olympus Mons

b.

maria

c.

space weathering

d.

lunar highlands

1 points  

QUESTION 8

1.    Phobos and Demos are

a.

moons of Venus.

b.

moons of Jupiter.

c.

especially large asteroids in the asteroid belt.

d.

moons of Mars.

1 points  

QUESTION 9

1.    Which of the following best describes how Earth's Moon formed?

a.

The Earth and Moon formed at the same time.

b.

Early in the history of our solar system, an asteroid was captured by Earth's gravity and became the Moon.

c.

Early in the history of our solar system, a protoplanet collided with Earth, sending debris into orbit that coalesced to form the moon.

d.

During the late heavy bombardment, a group of comets were captured by Earth's gravity and coalesced to form the moon.

1 points  

QUESTION 10

1.    The Jovian planets are

a.

the four outermost planets.

b.

composed primarily of rocky materials.

c.

also known as the ice giants.

d.

also known as the terrestrial planets.

1 points  

QUESTION 11

1.    We are able to see the Moon from Earth because it

a.

is very close to Earth.

b.

reflects the light from Earth.

c.

produces its own light.

d.

reflects the light from the Sun.

1 points  

QUESTION 12

1.    Which of the following is MOST true about Jupiter's moon(s)?

a.

Jupiter has no moons.

b.

Jupiter has two moons named Phobos and Demos.

c.

Jupiter has many moons (67 confirmed).

d.

Jupiter has one moon named Io.

1 points  

QUESTION 13

1.    When did the most intense cratering of the Moon take place?

a.

during the cratering density phase

b.

during the early heavy bombardment

c.

during the late heavy bombardment

d.

in modern time

1 points  

QUESTION 14

1.    A planet does NOT necessarily have to

a.

have one or more moons.

b.

orbit a star.

c.

be spherical (large enough for internal gravitation to have smoothed out the bumps on the surface).

d.

have cleared its orbit of other objects.

1 points  

QUESTION 15

1.    Compared to the Jovian planets, the terrestrial planets

a.

are smaller.

b.

have higher masses.

c.

are farther from the Sun.

d.

are less dense.

1 points  

QUESTION 16

1.    Which of the following planets is LEAST similar to Earth?

a.

Neptune

b.

Venus

c.

Mars

d.

Mercury

1 points  

QUESTION 17

1.    Rocky or metallic objects larger than 100 m (330 ft) are known as

a.

asteroids.

b.

meteors.

c.

comets.

d.

meteorites.

1 points  

QUESTION 18

1.    Which of the following planets is an ice giant?

a.

Jupiter

b.

Earth

c.

Saturn

d.

Uranus

1 points  

QUESTION 19

1.    Which of the following planets is a gas giant?

a.

Jupiter

b.

Uranus

c.

Venus

d.

Earth

1 points  

QUESTION 20

1.    A(n) __________ is a streak of light and an atmospheric phenomenon, also known as a shooting star.

a.

comet

b.

asteroid

c.

meteor

d.

meteorite

1 points  

QUESTION 21

1.    Which of the following is an example of a volatile material?

a.

silica (SiO2)

b.

iron oxide (Fe2O3)

c.

magnesium oxide (MgO)

d.

water (H2O)

1 points  

QUESTION 22

1.    There are so many more craters on the Moon than on Earth because

a.

more objects impact the Moon than Earth because it is farther out in space.

b.

the Moon is much more volcanically active, which produces numerous craters.

c.

the Moon is older than Earth, so it has a longer history of impacts.

d.

more objects impact the Moon than Earth because it lacks an atmosphere.

1 points  

QUESTION 23

1.    Which of the following planets does NOT have rings?

a.

Mars

b.

Saturn

c.

Uranus

d.

Jupiter

1 points  

QUESTION 24

1.    Which of the following is MOST true of the presence of water on Mars?

a.

Liquid water has been discovered on the surface of Mars.

b.

There is no water, nor any evidence of water, on Mars.

c.

There is evidence that suggests that liquid water may have existed on Mars, and the presence of water as ice has been discovered in the subsurface.

d.

There is evidence that suggests that there may have once been water on Mars, but no water remains.

1 points  

QUESTION 25

1.    Which of the following planets has rings that can be seen from Earth?

a.

Uranus

b.

Venus

c.

Mars

d.

Saturn

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