EAPS 105 EXAM 1 HW QUESTIONS WITH
VERIFIED ANSWERS
What lies in the center of the galaxy?
a. a void, like the eye of a hurricane
b. the oldest stars in the galaxy
c. a supermassive black hole
d. the home world of our galactic empire
c. a supermassive black hole
Which of the following statements about the solar system are correct?
a. It formed 4.6 billion years ago.
b. At least one of the giant planets are formed of rock and metal like terrestrial planets.
c. The orbits of the major planets range from circular to highly elliptical.
d. All of the above are true.
a. It formed 4.6 billion years ago.
About what percentage of the Solar System's mass is contained in the Sun?
a. 50%
b. 70%
c. 85%
d. 99.9%
d. 99.9%
Which of the statements is true?
a. An astronomical unit (AU) is the distance from the Earth to the sun.
b. Jupiter is about 5 AU from the Sun.
c. With a few exceptions, the farther a planet or belt is from the Sun, the larger the distance
between its orbit and the orbit of the next nearer object to the sun.
d. All of the above
d. All of the above
What is a terrestrial planet?
a. A planet composed mainly of hydrogen and helium gas.
b. A planet composed mainly of ices.
c. A planet composed primarily of silicate rocks or metals.
d. A planet that has not cleared its orbit of other objects.
c. A planet composed primarily of silicate rocks or metals.
What is a gas giant?
a. A planet composed mainly of hydrogen and helium gas.
b. A planet composed mainly of ices.
, c. A planet composed primarily of silicate rocks or metals.
d. A planet that has not cleared its orbit of other objects.
a. A planet composed mainly of hydrogen and helium gas.
In planetary science, what does the term ice refer to?
a. Compounds with hydrogen
b. Volatile chemical compounds with freezing points above 100k, such as water, ammonia
or methane.
c. Any compound below its freezing temperatures
d. Compounds that are transparent to visible light.
b. Volatile chemical compounds with freezing points above 100k, such as water, ammonia or
methane.
Which of the following is not a true statement about the asteroid belt?
a. The asteroid belt occupies the orbit between Mars and Jupiter.
b. It formed from the breakup of a planet.
c. The total mass of the asteroid belt is unlikely to be more than a thousandth of that of the
Earth.
d. All of the above is true.
b. It formed from the breakup of a planet.
Which of the following is not a true statement about the Kuiper Belt?
a. The Kuiper belt is a great ring of debris similar to the asteroid belt but consisting mainly
of objects composed primarily of ice.
b. It extends between 30 and 50 AU from the sun(beyond Neptune's orbit)
c. The total mass of the Kuiper belt is thought to be greater than that of Earth.
d. All the above are true.
c. The total mass of the Kuiper belt is thought to be greater than that of Earth.
What is a hydrogen ion?
a. A hydrogen atom that has lost or gained an electron.
b. A hydrogen atom combined with another hydrogen atom.
c. A hydrogen atom without a proton.
d. A hydrogen atom with two protons.
a. A hydrogen atom that has lost or gained an electron.
Heat and Light from our Sun is caused by the fusion of hydrogen into what element?
a. Helium
b. Carbon
c. Oxygen
d. Nitrogen
a. Helium
VERIFIED ANSWERS
What lies in the center of the galaxy?
a. a void, like the eye of a hurricane
b. the oldest stars in the galaxy
c. a supermassive black hole
d. the home world of our galactic empire
c. a supermassive black hole
Which of the following statements about the solar system are correct?
a. It formed 4.6 billion years ago.
b. At least one of the giant planets are formed of rock and metal like terrestrial planets.
c. The orbits of the major planets range from circular to highly elliptical.
d. All of the above are true.
a. It formed 4.6 billion years ago.
About what percentage of the Solar System's mass is contained in the Sun?
a. 50%
b. 70%
c. 85%
d. 99.9%
d. 99.9%
Which of the statements is true?
a. An astronomical unit (AU) is the distance from the Earth to the sun.
b. Jupiter is about 5 AU from the Sun.
c. With a few exceptions, the farther a planet or belt is from the Sun, the larger the distance
between its orbit and the orbit of the next nearer object to the sun.
d. All of the above
d. All of the above
What is a terrestrial planet?
a. A planet composed mainly of hydrogen and helium gas.
b. A planet composed mainly of ices.
c. A planet composed primarily of silicate rocks or metals.
d. A planet that has not cleared its orbit of other objects.
c. A planet composed primarily of silicate rocks or metals.
What is a gas giant?
a. A planet composed mainly of hydrogen and helium gas.
b. A planet composed mainly of ices.
, c. A planet composed primarily of silicate rocks or metals.
d. A planet that has not cleared its orbit of other objects.
a. A planet composed mainly of hydrogen and helium gas.
In planetary science, what does the term ice refer to?
a. Compounds with hydrogen
b. Volatile chemical compounds with freezing points above 100k, such as water, ammonia
or methane.
c. Any compound below its freezing temperatures
d. Compounds that are transparent to visible light.
b. Volatile chemical compounds with freezing points above 100k, such as water, ammonia or
methane.
Which of the following is not a true statement about the asteroid belt?
a. The asteroid belt occupies the orbit between Mars and Jupiter.
b. It formed from the breakup of a planet.
c. The total mass of the asteroid belt is unlikely to be more than a thousandth of that of the
Earth.
d. All of the above is true.
b. It formed from the breakup of a planet.
Which of the following is not a true statement about the Kuiper Belt?
a. The Kuiper belt is a great ring of debris similar to the asteroid belt but consisting mainly
of objects composed primarily of ice.
b. It extends between 30 and 50 AU from the sun(beyond Neptune's orbit)
c. The total mass of the Kuiper belt is thought to be greater than that of Earth.
d. All the above are true.
c. The total mass of the Kuiper belt is thought to be greater than that of Earth.
What is a hydrogen ion?
a. A hydrogen atom that has lost or gained an electron.
b. A hydrogen atom combined with another hydrogen atom.
c. A hydrogen atom without a proton.
d. A hydrogen atom with two protons.
a. A hydrogen atom that has lost or gained an electron.
Heat and Light from our Sun is caused by the fusion of hydrogen into what element?
a. Helium
b. Carbon
c. Oxygen
d. Nitrogen
a. Helium
