Astronomy 110 Final Exam
As a hot solid, such as a light bulb filament, is decreased in temperature it's overallcolor
shifts toward, - ANS-longer wavelengths
Which of the following types of electromagnetic radiation has the highest frequency? -
ANS-X-rays
"blue shift" of its spectrum indicates that a star is - ANS-Moving towards the observer
The bending of waves as they cross the boundary into a different material in which they
alsochange speed is called, - ANS-Refraction
If you double the distance between two masses while also doubling one of the masses,
the gravitational force between them will - ANS-Halve
Wrote down the law of motion F = ma - ANS-Sir Isaac Newton
Hired a young, visually handicapped, mathematician to analyze planetary orbital data
gathered at his private observatory - ANS-Tycho Brahe
Probably the first astronomer to use a telescope and write about it. - ANS-Galileo Galilei
Observed the phases of Venus to support the heliocentricmodel of the solar system. -
ANS-Galileo Galilei
Discovered the law that P2 is proportional to a3 - ANS-Johannes Kepler
Burned at the stake in Rome in about 1600 for advocating the heliocentric model ofthe
solar system and other "heresies." - ANS-Giordano Bruno
Hot solids emit _______________ spectra while low pressure excited gasses emit
_________spectra - ANS-Continuous, Line
Which of the following famous scientists first wrote down the universal law of gravitation.
- ANS-Newton
Which of the following distances is largest? - ANS-1 parsec (pc)
, As the index of refraction increases, the speed of light through the material -
ANS-decreases
The Sun is approximately ___________ away from the Earth - ANS-8.3 light minutes
A "red shift" of its spectrum indicates that a star is - ANS-Moving away from the
observer
Which of the following distances is shortest? - ANS-The average Earth-moon distance
Which of the following types of electromagnetic radiation has the largest wavelength? -
ANS-Radio waves
Shield volcanoes on Mars grow to several times the height of those on Earth, mainly
because of, - ANS-the weaker surface gravity on Mars
By far, most of the mass of our solar system is in the - ANS-Sun
Long-period comets (those that "come around" with time intervals greater than 200
years) are believedto originate in the _____________, while those with shorter periods
come from the ______________. - ANS-Oort Cloud, Kuiper Belt
Which of the following is furthest from the Sun? - ANS-The Oort Cloud
Which theory of the formation of Earth's moon is now favored by most astronomers? -
ANS-Collision
Almost all of the round features on the Moon's surface are, - ANS-impact craters
Which of the following types of electromagnetic radiation has the smallest frequency? -
ANS-radio waves
The Moon's crust is thinner on the side facing the Earth than on the far side. This is
responsible for - ANS-The small size of Maria on the side
Impact craters on the Moon look very different than impact craters on the Earth. This is
mainly due to - ANS-the results of plate tectonics and the much higher rate of erosion
the Earth
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