Astronomy college course/Solar system/Quiz/Original version of this quiz

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Version A[1]

1

Very far from the sun, the heliosphere

becomes the magnetosphere
reverses direction
becomes weaker than the interstellar wind
spins in the opposite direction
never ends

2

A volatile is a substance that

reacts violently with acids
reacts violently with water
reacts violently with oxygen
melts or evaporates at high temperature
melts or evaporates at low temperature

3

All planets lie within a nearly flat disc called the __________ plane

interstellar
retrograde
ecliptic
angular
fissile

4

The AU is

a measure of the brightness of a planet
the size of Oort's cloud
the most distant Kuiper object from the Sun
the distance from Earth to the Moon
the distance from the Sun to Earth

5

The Sun and Earth are about

5 million years old
50 million years old
500 million years old
5 billion years old
50 billion years old

6

The universe is about

15 million years old
150 million years old
1.5 billion years old
15 billion years old
150 billion years old

7

Roughly how much bigger is a gas planet than a terrestrial planet?

3
10
30
100
300

8

Roughly how much bigger is a the Sun than a gas planet?

3
10
30
100
300

9

According to Wikipedia, if all the mass of the asteroid belt were combined to one object, it's mass would _______ times less than Earth's mass.

1
10
100
1,000
10,000

10

planetary disk
In this hypothetical image of a sun-like star we see a bright band of dust that we on Earth call zodiacal light. It is due to sunlight reflecting off dust in the

magnetic sun's magnetic field
Oort Cloude
Kuiper belt
Van Allen belt
ecliptic plane

11

In planetary science, the frost line refers to a distance away from

the star in the middle
the north pole of a planet
the south pole of a planet
either pole of a planet
ecliptic plane

12

Oort's cloud was hypothesized to explain the source of

planets
asteroids
comets
water inside the frost line
water outside the frost line

13

According to Wikipedia _______ and ______ are referred to as volatiles.

electrons and protons
ices and gasses
acids and bases
planets and moons
asteroids and terrestrial planets

14

Which of the following list is properly ranked, starting with objects closest to the Sun?

Kuiper belt, Oort's cloud, Asteroid belt
Oort's cloud, Asteroid belt, Kuiper belt
Asteroid belt, Kuiper belt, Oort's cloud
Asteroid belt, Oort's cloud, Kuiper belt
Kuiper belt, Asteroid belt, Oort's cloud

15

When the sun turns into a red giant,

surface temperature decreases; energy output increases
surface temperature increases; energy output increases
surface temperature decreases; energy output decreases
surface temperature increases; energy output decreases
The sun will not turn into a red giant

  1. user:Clockworks made the first version of this quiz's software