Solar System

Question 1

List the solid, rocky type, inner planets,, in our solar system.

Answer 1

Mercury, Venus, Earth, and Mars.

Question 2

List the planets that are the gas giant, outer planets, in our solar system.

Answer 2

Jupiter, Saturn, Uranus, and Neptune.

Question 3

What group of planets revolve faster around the sun - outer or inner?

Answer 3

Inner

Question 4

Which group of planets has shorter years, inner or outer?

Answer 4

Inner

Question 5

Which group of planets has the most moons - inner or outer?

Answer 5

Outer

Question 6

Which group of planets has rings - inner or outer?

Answer 6

Outer

Question 7

Which of these planets is an outer planet?

A) Mercury B) Venus C) Mars D) Uranus

Answer 7

Uranus

Question 8

Which planet has been demoted to a dwarf planet or a minor planet?

Answer 8

Pluto

Question 9

Which 2 planets have a retrograde rotation? (clockwise)

Answer 9

Venus and maybe Uranus

Question 10

What is a nebula?

Answer 10

Birthplace of stars

Question 11

Approximately when did the solar system form?

Answer 11

4.6 million years ago

Question 12

What does “planet” mean?

Answer 12

Wanderer

Question 13

What are changes in the apparent shape of a planet or moon called?

Answer 13

Phases

Question 14

What happens to the average temperature of the planets as we move outward away from the sun?

Answer 14

Temperatures decline/drop

Question 15

What are asteroids?

Answer 15

A large piece of rock or metal

Question 16

Which object is more likely to have more craters, the moon or venus? Why is this true?

Answer 16

The moon, no protective atmosphere.

Question 17

Which of these planets has the most eccentric orbit?

A) Venus B) Mercury C) Pluto D) Earth

Answer 17

Pluto

Question 18

What does “eccentric” mean?

Answer 18

Elliptical

Question 19

Which Earth motion contributes to seasons besides tilt/inclination?

Answer 19

Revolution around the sun

Question 20

Is Earths orbital velocity greatest in January or July?

Answer 20

January

Question 21

Which planets orbital velocity is greatest, Venus or Mars?

Answer 21

Venus

Question 22

Which planet should be visible in the sky the shortest period of time, Venus or Jupiter?

Answer 22

Venus, it’s orbital velocity.

Question 23

Which planets day is longer than its year?

Answer 23

Venus

Question 24

Which planet is known as the ringed planet?

Answer 24

Saturn

Question 25

Which planet takes the longest time to complete one orbit around the sun?

Answer 25

Saturn

Question 26

Why does Mars not appear to stay in one position in the night sky?

Answer 26

It revolves around the sun

Question 27

Which planet is known as Earth's twin or Earth's sister planet?

Answer 27

Venus

Question 28

Which planet is known as the "morning star" and the "evening star?"

Answer 28

Venus

Question 29

Which planet has a great red spot?

Answer 29

Jupiter

Question 30

What is the great red spot on Jupiter??

Answer 30

A giant hurricane like storm

Question 31

Which planet has rovers roaming its surface?

Answer 31

Mars

Question 32

What are large objects with a glowing tail, which revolve around the sun in very elliptical orbits, called?

Answer 32

Comets

Question 33

Which two solar system planets do not have moons?

Answer 33

Mercury and Venus

Question 34

In what year did the Apollo astronauts land on the moon?

Answer 34

1969 (Apollo)

Question 35

Which solar system bodies orbit takes it inside the orbit of Neptune?

Answer 35

Pluto

Question 36

Who discovered the four largest moons on Jupiter?

Answer 36

Galileo

Question 37

Which planet is tilted over on its side?

Answer 37

Uranus

Question 38

Which planet is known as the red planet?

Answer 38

Mars

Question 39

Is pluto at the very edge of the solar system? Explain.

Answer 39

No, there are still several other moons. This means more planets too.

Question 40

Which of the two main models of the solar system is closest to being the correct model?

Answer 40

Heliocentric

Question 41

Was Ptolemy's model correct?

Answer 41

No

Question 42

How many known planets are there?

Answer 42

8

Question 43

List the planets in order:

Answer 43

1. Mercury 2. Venus 3. Earth 4. Mars 5. Jupiter 6. Saturn 7. Uranus 8. Neptune

Question 44

Which planets are terrestrial?

Answer 44

Mercury, Venus, Earth, and Mars

Question 45

Why are the called terrestrial planets?

Answer 45

They are rocky and solid

Question 46

List the gas giant planets?

Answer 46

Jupiter, Saturn, Uranus, and Neptune

Question 47

Why are they called gas giants?

Answer 47

They are mostly made of gas, they are much less dense.

Question 48

Which planet has the most moons/natural satellites?

Answer 48

Jupiter

Question 49

How many moons does this planet have?

Answer 49

63+

Question 50

Which planet is known as the red planet?

Answer 50

Mars

Question 51

Which planet is named after the messenger of the gods?

Answer 51

Mercury

Question 52

What former planet is now categorized as a dwarf-planet?

Answer 52

Pluto

Question 53

Why was Pluto named this?

Answer 53

It's too small to be considered a planet

Question 54

Which planet has vast oceans and is known to possess life?

Answer 54

Mars

Question 55

What is on Mars that makes life possible?

Answer 55

Water & 4 Seasons

Question 56

Which two planets (as far as we know) do not have moons/natural satellites?

Answer 56

Mercury & Venus

Question 57

Which planet has such a low density that it could float on water?

Answer 57

Saturn

Question 58

Which planet's day is longer than its year?

Answer 58

Venus

Question 59

What solar system objects are known as shooting stars or falling stars?

Answer 59

Comets

Question 60

What is rotation?

Answer 60

The spinning of earth on its axis

Question 61

One rotation results in what?

Answer 61

Day and night

Question 62

How much is Earth inclined?

Answer 62

23.5

Question 63

How long does it take the Earth to rotate once?

Answer 63

24 hours

Question 64

What does this rotation motion cause?

Answer 64

Day and night (sun to move across sky)

Question 65

What is a revolution?

Answer 65

Earth's yearly orbit

Question 66

Revolution results in what?

Answer 66

A year

Question 67

Around what object does the earth revolve

Answer 67

sun