Space Exploration - Section 11.2 Quiz

Consider the following statements about the sun:

I. The sun is composed mostly of hydrogen.
II. The sun has no solid core.
III. The sun contains about 50% of the total mass of the solar system.
V. Some of the sun's planets are captured ancient meteors.

Which of the statement are false?
1. Statements III and V
2. Statements I, II, III and IV
3. Statement IV only
4. Statement I only
Sunspots
1. increase and decrease on an 11-year cycle.
2. indicate areas of higher temperatures.
3. are not normal occurrences on the sun.
4. are rarely larger than about 1 metre wide.
Solar flares on the sun can heat gases to
1. 11 000 000 C
2. 3500 C
3. 20 000 C
4. 3 000 000 C
Fortunately for us, solar winds are deflected by Earth's
1. magnetosphere.
2. atmosphere.
3. north and south poles.
4. troposphere.
Which of the following are essential contributors to the Northern Lights?

I. Earth's atmosphere
II. gravity
III. solar wind
IV. polar ice
1. I and III
2. I and IV
3. I, II, III and IV
4. I, III and IV
Which planets in our solar system have an atmosphere and a rocky core?
1. Earth, Venus and Mars
2. All the planets except Mercury
3. Earth and Venus
4. Jupiter, Saturn, Venus and Neptune
Which planets have a ring system?
1. Jupiter, Saturn, Uranus and Neptune
2. Only Saturn has a true ring system
3. Saturn and Venus
4. Jupiter, Saturn and Neptune
Which planets do not have any orbiting moons?
1. Mercury and Venus
2. Uranus, Mercury and Venus
3. Mars, Mercury and Venus
4. All the planets have one or more orbiting moons
Most asteroids originate in the
1. Asteroid Belt.
2. Oort Cloud.
3. Kuiper Belt.
4. Asteroid Belt and Kuiper Belt.
Most comets originate in the
1. Oort Cloud and Kuiper Belt.
2. Asteroid Belt.
3. Proxima Centauri.
4. Asteroid Belt and Oort Belt.