Astronomy Final

Front 1

How many steps are there in the formation of a Solar System?

Back 1

Six

Front 2

Uranus was the ninth body in space to be identified and named. True or False?

Back 2

False

Front 3

The MOST important factor in determining the development of life on Earth is:

Back 3

Water

Front 4

Earth’s view from space is like a sparkling blue oasis in a black sea of stars.

Back 4

True

Front 5

Why does Mercury lack seasons?

Back 5

Rotation of axis is vertical

Front 6

The solar nebula was most likely a gigantic cloud of dust and gas that was created:

Back 6

During the big bang

Front 7

Planets look like bright stars when they are viewed from Earth.

Back 7

True

Front 8

Which of the following contributes to Mars’ cool temperatures?

Back 8

Its thin atmosphere and distance from the Sun

Front 9

Which of the following words can be used to describe Mercury, Venus, Earth, and Mars?

Back 9

Rocky and dense.

Front 10

Unlike other terrestrial planets, Mars has a core, mantle, and crust.

Back 10

False

Front 11

Venus is more like Earth than any other planet in the Solar System.

Back 11

True

Front 12

Planetesmals are made from:

Back 12

Rock

Front 13

The earliest stage of a star’s life before it begins to undergo fusion is known as:

Back 13

Protostar

Front 14

Which of the following bodies has a brightness that surpasses Venus’?

Back 14

The Moon

Front 15

Although Venus is like Earth, it is too cold to maintain life.

Back 15

False

Front 16

Which of the following is NOT TRUE about Titan?

Back 16

It forms lakes that are similar to Earth’s.

Front 17

Uranus takes 84 Earth years to complete an orbit around the Sun. What effect does this produce?

Back 17

It makes the planet very cold.

Front 18

Neptune can be divided into a total of ______________ different layers.

Back 18

Four

Front 19

What are the four parts of Jupiter’s ring system?

Back 19

An inner “halo” ring, a main ring, and two gossamer rings

Front 20

Because of Saturn’s rings, we are unable to observe from Earth:

Back 20

Its bright blue color

Front 21

Which of the following layers in Uranus’ atmosphere is the densest part?

Back 21

Troposphere

Front 22

Which of the following planets has seasonal changes that are comparable to Earth and Mars?

Back 22

Neptune

Front 23

Neptune is smaller than the gas giants and Earth.

Back 23

False

Front 24

The asteroid belt separates the inner planets from the outer planets

Back 24

True

Front 25

Which of the following outer planets is known as the “windy” planet?

Back 25

Saturn

Front 26

Saturn’s rings have been assigned a letter, based on their location. The rings A and B are separated by:

Back 26

The Cassini Division

Front 27

Recent counts show that Jupiter has __________________ moons, not including the temporary ones.

Back 27

50

Front 28

Every few years, Earth passes through Saturn’s rings.

Back 28

True

Front 29

Jupiter’s mass is larger than all of the other planets in the Solar System.

Back 29

True

Front 30

The outer planets are very large, making up 99 percent of the mass of the bodies orbiting the Sun.

Back 30

True

Front 31

Solar flares emit energy in three different stages. The precursor stage includes which of the following?

Back 31

The release of magnetic energy is triggered

Front 32

A neutrino contains very little:

Back 32

Mass

Front 33

The Sun is the centermost star of our Solar System.

Back 33

True

Front 34

The Sun creates energy through a series of steps known as:

Back 34

Proton-proton chain reaction

Front 35

The Sun’s radius is about 100 times the radius of the Milky Way.

Back 35

False

Front 36

The chromosphere of the Sun is visible from Earth at all times, except during total eclipses.

Back 36

False

Front 37

A person on Earth would weigh a lot more on the Sun due to increased ________________.

Back 37

Gravity

Front 38

A deuterium nucleus contains which of the following?

Back 38

One proton and one neutron

Front 39

Which of the following is NOT an effect of a solar flare?

Back 39

The energy created inside the Sun becomes non-existent

Front 40

The Sun orbits the center of the Milky Way.

Back 40

True

Front 41

The chromosphere is the lowest layer of the Sun’s atmosphere.

Back 41

False

Front 42

Which of the following does the Sun orbit?

Back 42

The center of the Milky Way

Front 43

About four million tons of __________________ are converted to energy in the Sun’s core every second.

Back 43

Matter

Front 44

Trapped gas within the Sun is known as:

Back 44

Filaments

Front 45

The balance of gravity pulling outward at the same time pressure is pushing in is known as gravitational equilibrium.

Back 45

False

Front 46

Most comets do have tails that keep them in the outer Solar System, far away from Earth.

Back 46

False

Front 47

Which of the following BEST describes a meteoroid?

Back 47

Pieces of rock and other material that are present in the Solar System.

Front 48

Asteroids move much slower and less frequently than stars.

Back 48

False

Front 49

When do comets show tails?

Back 49

When they are approaching the Sun

Front 50

Which of the following is NOT a characteristic of meteor showers?

Back 50

Rocky debris

Front 51

Most of the asteroids ___________________________ before they reach Earth’s surface.

Back 51

Burn up

Front 52

The comets in the Oort Cloud may take up to __________________ Earth years to orbit the Sun just once.

Back 52

30 million Earth years

Front 53

Comets are mixtures of frozen gases, rocks, and dust.

Back 53

True

Front 54

The NEO that is the most current threat to Earth is:

Back 54

2012 DA14, an asteroid with a 150-foot diameter.

Front 55

The dust and gas that escapes from a comet creates a/an _____________________________.

Back 55

Coma

Front 56

The asteroid belt is located between Mars and Jupiter and contains thousands of asteroids.

Back 56

True

Front 57

Although scientists have studied meteorites and know that there are two major types, what are they still unsure of?

Back 57

Where meteorites come from

Front 58

Most comets come from an area called the Oort Cloud.

Back 58

True

Front 59

The comet cools down and begins to glow brightly as a result of this decreased temperature.

Back 59

False

Front 60

The largest identified asteroid is Ceres and is about three times the size of the Moon.

Back 60

False