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NATS 1880 Study Guide - Quiz Guide: Oort Cloud, Local Group, Planetary System


Department
Natural Science
Course Code
NATS 1880
Professor
Richard Gasparini
Study Guide
Quiz

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Chapter 3
Question 1
23. In the process of nuclear fusion,
Select one:
a. two or more nuclei fuse or stick together to form a heavier nucleus that has exactly the same
mass as the original nucleus
b. two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is
slightly greater than the original nuclei
c. a heavy nucleus breaks apart into a number of smaller nuclei whose combined mass is less than
the original nucleus
d. two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is
slightly less than the original nuclei
Question 2
63. Which subatomic particle or particles are found in the nuclei of atoms?
Select one:
a. neutrons and electrons
b. electrons and protons
c. protons only
d. protons and neutrons
Question 3
90. Radio rays travel through space at what speed compared to microwaves?
Select one:
a. much faster than microwaves since their energies are higher
b. slower than microwaves since their wavelengths are longer
c. at exactly the same speed as microwaves
d. it depends on the object that produced the radiation
Question 4
51. In the nebular theory, the process by which planets form is referred to as
Select one:
a. fusion
b. accumulation
c. agglomeration
d. accretion
Question 5
58. The tiny outer moons of the Jovian planets

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Select one:
a. formed when large planetesimals collided with them
b. were spun out from their parent planets due to their rapid rotation
c. are most likely gravitationally captured asteroids and comets
d. were probably formed from spinning disks of gas that surrounded the planets
Question 6
88. How does the speed (in a vacuum) of a high-frequency electromagnetic wave compare with a
low-frequency electromagnetic wave?
Select one:
a. the two waves have the same speed because the speed of light is constant
b. the lower-frequency wave has the higher speed because it has the longest wavelength
c. the lower-frequency wave has the higher speed because speed is inversely related to frequency
d. the higher-frequency wave has the higher speed
Question 7
49. Which of the following materials present in the solar system had the highest condensation
temperatures?
Select one:
a. rocks
b. metals
c. hydrogen compounds like water, methane, and ammonia
d. hydrogen and helium gases
Question 8
1. In the context of life in the universe, which of the following discoveries of astronomy suggests
that enormous numbers of habitable planets may exist?
Select one:
a. the building blocks of life are common
b. the universe is very old
c. the laws of physics are the same everywhere
d. the universe is very large
Question 9
15. Most of the mass of the Milky Way is in the form of
Select one:
a. black holes
b. stars
c. gas clouds
d. dark matter
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