Astronomy 102 Exam Questions | 100% Correct
Answers | Verified | Latest 2024 Version
Which of the following wavelength regions cannot be studied with telescopes on the ground?
A) Radio waves
B) Ultraviolet
C) X rays
D) both B and C
E) both A and C - ✔✔D) both B and C
Earth and the people living on it are made mostly of carbon, oxygen, calcium, assorted rocks, and metals.
Where did these materials come from?
A) It was produced in the Big Bang.
B) It was created by chemical reactions in interstellar space.
C) It was produced by nuclear fusion in stars.
D) It was made by our Sun.
E) It was made by nuclear fission of uranium and other radioactive materials - ✔✔C) It was produced by
nuclear fusion in stars.
From the fact that virtually every galaxy is moving away from us and more distant galaxies are moving
away from us at a faster rate than closer ones, we conclude that:
A) the Milky Way Galaxy is expanding.
B) We are located at the center of the universe.
C)the farthest galaxies will eventually stop and fall back in a "Big Crunch."
D) the universe is expanding.
E) the universe is shrinking. - ✔✔D) the universe is expanding.
Orion is visible on winter evenings but not summer evenings because of:
A) interference from the full Moon.
B) the tilt of the Earth's axis.
C) the location of Earth in its orbit.
, D) the precession of Earth's axis.
E) Baseball on television. - ✔✔C) the location of Earth in its orbit.
Every photon (bit of light) has a characteristic color, wavelength, and energy. Which of the following is
NOT true:
A) high energy corresponds to short wavelength
B) violet photons have shorter wavelength than red photons
C) long wavelength corresponds to low energy
D) Gamma ray photons have more energy than radio photons
E) long wavelength corresponds to high energy - ✔✔E) long wavelength corresponds to high energy
Suppose an object is moving in a straight line at 50 mi/hr. According to Newton's first law of motion, the
object will:
A) continue to move in the same way forever, no matter what happens.
B) continue to move in the same way until it is acted upon by a force.
C) eventually slow down and come to a stop.
D)continue to move in a straight line forever if it is in space, but slow and stop otherwise. - ✔✔B)
continue to move in the same way until it is acted upon by a force.
When we observe a source of white light (a continuous spectrum) through a cooler cloud of gas, we see:
A) visible light.
B) infrared light.
C) thermal radiation.
D) an absorption line spectrum. - ✔✔D) an absorption line spectrum.
The Strong Nuclear Force is stronger tun the electromagnetic force. If that were not so:
A) all atoms would fly apart
B) all molecules would fly apart
C) all nuclei with more protons than hydrogen would fly apart
D) neutrinos would cease to exist
Answers | Verified | Latest 2024 Version
Which of the following wavelength regions cannot be studied with telescopes on the ground?
A) Radio waves
B) Ultraviolet
C) X rays
D) both B and C
E) both A and C - ✔✔D) both B and C
Earth and the people living on it are made mostly of carbon, oxygen, calcium, assorted rocks, and metals.
Where did these materials come from?
A) It was produced in the Big Bang.
B) It was created by chemical reactions in interstellar space.
C) It was produced by nuclear fusion in stars.
D) It was made by our Sun.
E) It was made by nuclear fission of uranium and other radioactive materials - ✔✔C) It was produced by
nuclear fusion in stars.
From the fact that virtually every galaxy is moving away from us and more distant galaxies are moving
away from us at a faster rate than closer ones, we conclude that:
A) the Milky Way Galaxy is expanding.
B) We are located at the center of the universe.
C)the farthest galaxies will eventually stop and fall back in a "Big Crunch."
D) the universe is expanding.
E) the universe is shrinking. - ✔✔D) the universe is expanding.
Orion is visible on winter evenings but not summer evenings because of:
A) interference from the full Moon.
B) the tilt of the Earth's axis.
C) the location of Earth in its orbit.
, D) the precession of Earth's axis.
E) Baseball on television. - ✔✔C) the location of Earth in its orbit.
Every photon (bit of light) has a characteristic color, wavelength, and energy. Which of the following is
NOT true:
A) high energy corresponds to short wavelength
B) violet photons have shorter wavelength than red photons
C) long wavelength corresponds to low energy
D) Gamma ray photons have more energy than radio photons
E) long wavelength corresponds to high energy - ✔✔E) long wavelength corresponds to high energy
Suppose an object is moving in a straight line at 50 mi/hr. According to Newton's first law of motion, the
object will:
A) continue to move in the same way forever, no matter what happens.
B) continue to move in the same way until it is acted upon by a force.
C) eventually slow down and come to a stop.
D)continue to move in a straight line forever if it is in space, but slow and stop otherwise. - ✔✔B)
continue to move in the same way until it is acted upon by a force.
When we observe a source of white light (a continuous spectrum) through a cooler cloud of gas, we see:
A) visible light.
B) infrared light.
C) thermal radiation.
D) an absorption line spectrum. - ✔✔D) an absorption line spectrum.
The Strong Nuclear Force is stronger tun the electromagnetic force. If that were not so:
A) all atoms would fly apart
B) all molecules would fly apart
C) all nuclei with more protons than hydrogen would fly apart
D) neutrinos would cease to exist
