Quiz about Planets, the Asteroid Belt, and the Kuiper Belt

Question 1

What year did New Horizons pass by and study Pluto?

Accepted Answer

2015

Answer

1930

Answer

1992

Answer

1978

Question 2

Pluto was discovered in what year?

Accepted Answer

1930

Answer

2015

Answer

1992

Answer

1978

Question 3

The center of our solar system is the....

Accepted Answer

Sun

Answer

Earth

Answer

Moon

Answer

Asteroid belt

Question 4

There are _________ planets in our solar system.

Accepted Answer

8

Answer

6

Answer

7

Answer

9

Question 5

___________ are similar to planets but are not large enough to have cleared their orbital region of other objects.

Accepted Answer

dwarf planets

Answer

comets

Answer

asteroid belt

Answer

Kuiper Belt

Answer

Oort cloud

Question 6

The _________ is a region between the planets Mars and Jupiter containing thousands of rocky objects that orbit the Sun.

Accepted Answer

Asteroid belt

Answer

dwarf planets

Answer

comets

Answer

Kuiper belt

Answer

Oort cloud

Question 7

The ___________ is a region of thousands of small bodies that exists outside the orbit of the planets. Objects in this area consist of "ices" such as ammonia, water, and methane.

Accepted Answer

Kuiper belt

Answer

dwarf planets

Answer

comets

Answer

Asteroid belt

Answer

Oort cloud

Question 8

Our solar system is part of a bigger grouping of stars called the ___________ galaxy.

Accepted Answer

Milky Way

Answer

Andromeda

Answer

Messier 63

Answer

Whirlpool

Answer

Sombrero

Question 9

___________ was once considered a full planet but was redefined as a dwarf planet in 2006.

Accepted Answer

Pluto

Answer

Mars

Answer

Ceres

Answer

MakeMake

Question 10

About 99.85% of the mass of the solar system is the __________.

Accepted Answer

Sun

Answer

Asteroid belt

Answer

Moon

Answer

planets

Question 11

Which planets are relatively small, and primarily made out of silicate minerals?

Accepted Answer

terrestrial planets

Answer

gas giants

Answer

ice giants

Answer

dwarf planets

Question 12

The most massive terrestrial planet.

Accepted Answer

Earth

Answer

Jupiter

Answer

Venus

Answer

Ceres

Question 13

The most massive gas giant planet.

Accepted Answer

Jupiter

Answer

Earth

Answer

Ganymede

Answer

Saturn

Question 14

Choose the best answer. Which planet(s) have rings?

Accepted Answer

All of the gas giant planets

Answer

Saturn

Answer

All of the terrestrial planets

Answer

Venus and Saturn

Question 15

Which of the following is NOT a requirement for something to be considered a dwarf planet?

Accepted Answer

The object is a sphere.

Answer

The object must directly orbit around a star.

Answer

The object has not cleared the neighborhood of other material around its orbit.

Answer

The object cannot orbit around a planet.

Question 16

The Moon is a _________.

Accepted Answer

natural satellite

Answer

dwarf planet

Answer

terrestrial planet

Answer

asteroid

Question 17

Which of the following is by far the biggest asteroid?

Accepted Answer

Ceres

Answer

Halley's Comet

Answer

Pluto

Answer

Venus

Question 18

Which of the following planets experiences a runaway greenhouse effect?

Accepted Answer

Venus

Answer

Mars

Answer

Mercury

Answer

Earth

Question 19

Which of the following planets has the most complex ring system?

Accepted Answer

Saturn

Answer

Neptune

Answer

Jupiter

Answer

Uranus

Question 20

The majority of Jupiter is made up of

Accepted Answer

hydrogen and helium.

Answer

nitrogen and oxygen.

Answer

helium and oxygen.

Answer

rock and water.

Question 21

The asteroid belt can be found between which two planets?

Accepted Answer

Mars and Jupiter

Answer

Earth and Mars

Answer

Venus and Earth

Answer

Saturn and Uranus

Question 22

The planet with a length of day closest to Earth's day is...

Accepted Answer

Mars

Answer

Uranus

Answer

Neptune

Answer

Venus

Question 23

The planet with the hottest average surface temperature is...

Accepted Answer

Venus

Answer

Mercury

Answer

Earth

Answer

Mars

Question 24

Earth's seasons are mainly the result of...

Accepted Answer

the tilt of its axis of rotation

Answer

its slightly elliptical orbit

Answer

its changing speed around the Sun

Answer

the Moon's influence

Question 25

Which statement best describes the definition of a moon?

Accepted Answer

a natural satellite orbiting a larger body

Answer

massive enough to be round but has not cleared its orbit

Answer

a larger body that orbits a smaller body

Answer

massive enough & solid to land a space probe on

Question 26

Definition of a planet includes that it orbits the Sun, is not a satellite, is round and

Accepted Answer

has cleared its orbit of debris.

Answer

can orbit the Sun at different rates of speed.

Answer

has rings.

Answer

can support life as we know it.

Question 27

Which statement best describes a dwarf planet?

Accepted Answer

object that is round but has not cleared its orbital debris

Answer

somewhere between a major & minor planet

Answer

a very small object in space

Answer

a natural satellite

Question 28

Asteroids are small rocky/metallic leftovers from the

Accepted Answer

beginning of the solar system.

Answer

asteroid belt.

Answer

Kuiper belt.

Answer

collision of worlds.

Question 29

In order from the Sun: Mercury, Venus, Mars, Earth, Jupiter, Saturn, Uranus & Neptune.

Accepted Answer

False

Answer

True

Question 30

All planets in our solar system orbit _____ around the Sun - as seen from the north pole.

Accepted Answer

counterclockwise

Answer

clockwise

Answer

in perfect circles

Answer

in perfect ellipses

Question 31

What is the major difference between terrestrial planets and Jovian planets?

Accepted Answer

terrestrial planets are smaller and have solid surfaces

Answer

Jovian planets are made up of mostly rock

Answer

Jovian planets are in erratic orbits

Answer

terrestrial planets have extremely thick atmospheres

Question 32

KBO's - or Kuiper Belt Objects - exist beyond the orbit of Neptune and contains

Accepted Answer

many minor & dwarf planets like Pluto, Eris & Sedna.

Answer

trillions of icy comets.

Answer

Planet "IX" - or the last known major planet.

Answer

leftover stellar gas & dust.

Question 33

Describe how the distances between the orbits of the inner planets compare to the distances between the orbits of the outer planets.

Accepted Answer

The distances between orbits of the outer planets are much larger.

Answer

The distances between orbits of the outer planets are much smaller.

Answer

The distances between orbits of the inner planets are much larger.

Answer

There is no difference between the distances of the orbits of the inner planets and the outer planets.

Question 34

True or False
The planets are all equally distanced from each other.

Accepted Answer

False

Answer

True

Question 35

99% of Earth's atmosphere is composed of which two gases?

Accepted Answer

nitrogen and oxygen

Answer

hydrogen and helium

Answer

oxygen and carbon dioxide

Answer

hydrogen and oxygen

Question 36

Which planet spins backward and is the slowest of all the planets?

Accepted Answer

Venus

Answer

Mars

Answer

Neptune

Answer

Earth

Question 37

What is the unit of measure most commonly used to measure interplanetary distances in our Solar System?

Accepted Answer

astronomical units

Answer

kilometers

Answer

parsecs

Answer

light years

Question 38

When was Pluto demoted to dwarf planet status?

Accepted Answer

August of 2006

Answer

January of 2002

Answer

August of 2003

Answer

July of 2015

Planets, the Asteroid Belt, and the Kuiper Belt

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