Test 2 Quiz 4

Where does nuclear fusion occur in the Sun? A) Anywhere below the surface. B) In its core. C) Just above the visible surface. D) On the surface. E) All of the above.

B) In its core.

Which planet, other than Earth, has visible water/ice on it? A) Venus. B) Mars. C) Mercury. D) Jupiter. E) The Moon.

B) Mars.

Which of the following is not a pattern of motion in our solar system? A) Larger planets all have many moons orbiting them. B) Planets all rotate in the same direction. C) Planets all orbit in the same direction. D) Planets all orbit the same direction as the Sun's spin.

B) Planets all rotate in the same direction.

Astronomers have decided that, rather than being a planet, Pluto is really just a large member of A) the Oort Cloud. B) the Kuiper Belt. C) the asteroid belt. D) the moon system around Neptune. E) an extrasolar planetary system.

B) the Kuiper Belt.

Where are most of the known asteroids found? A) Between the orbits of Mars and Jupiter. B) In the Oort Cloud. C) Between the orbits of the terrestrial planets. D) In the Kuiper Belt. E) Between the orbits of the jovian planets.

A) Between the orbits of Mars and Jupiter.

Which of the following statements is not an observed pattern of motion in our solar system? A) Most planets orbit at the same speed. B) Almost all moons orbit their planet in the same direction as the planet's rotation. C) Most planets rotate in the same direction in which stye orbit. D) All planets orbit the Sun in the same direction. E) Most planetary orbits lie nearly in the same plane.

A) Most planets orbit at the same speed.

Which of the following is the furthest from the Sun? A) A comet in the Kuiper Belt. B) Pluto. C) A comet in the Oort Cloud. D) Neptune. E) An asteroid in the asteroid belt.

C) A comet in the Oort Cloud.

Which planet has the highest average surface temperature, and why? A) Mercury, because it is closest to the Sun. B) Jupiter, because it is so big. C) Venus, because of its dense carbon dioxide atmosphere. D) Mars, because of its red color. E) Mercury, because of its dense carbon dioxide atmosphere.

C) Venus, because of its dense carbon dioxide atmosphere.

The planet closest in size to Earth is A) Mars. B) Pluto. C) Venus. D) Mercury. E) the Moon.

C) Venus.

What are the main constituents of the jovian planets? A) Ammonia and water. B) Rocky minerals and water, as on Earth. C) Nitrogen and methane. D) Hydrogen and helium. E) Ammonia and methane.

D) Hydrogen and helium.

How does the Sun's mass compare with that of the other planets? A) It is a hundred times more massive than Earth. B) It is a hundred times more massive than all the planets combined. C) It is a thousand times more massive than Earth. D) It is a thousand times more massive than all the other planets combined. E) It is about as massive as all the planets combined.

D) It is a thousand times more massive than all the other planets combined.

Which planet has a ring system? A) Saturn. B) Neptune. C) Uranus. D) Jupiter. E) All of the above.

E) All of the above.

How do asteroid differ from comets? A) Asteroids are rocky bodies and are less dense than the comets, which are made of icy material. B) Asteroids and comets are both made of rocky and icy material, but asteroids are smaller in size than comets. C) Asteroids are made of icy material and are less dense than the comets, which are rockier. D) Asteroids are made of icy material and are denser than the comets, which are more rocky. E) Asteroids are rocky bodies and are denser than the comets, which are made of icy material.

E) Asteroids are rocky bodies and are denser than the comets, which are made of icy material.

Which of the following is not a characteristic of the outer planets? A) They all have rings. B) They are primarily made of hydrogen and helium. C) They are all large balls of gas. D) Their orbits are separated by relatively large distances. E) They have very few, if any, satellites.

E) They have very few, if any, satellites.