15. Galileo and other 15th century astronomers found Mercury, Venus, Mars, Jupiter, and Saturn in the night sky, and tracked their movements. What technique aided 19th century astronomers in finding our most distant planets, which canât be seen at night by the naked eye?
A. They looked for a pulsating twinkle.
B. They looked along the ecliptic, knowing any unseen planets might be found there.
C. They sent space probes to find them.
D. Itâs a trick question; they only looked during the day
16. Polaris will not always be the northern polestar because
A. it will flip to become the southern pole star.
B. it orbits earth on the ecliptic.
C.15th century explorers used it to navigate to the New World.
D. precession of the earth will cause the north pole to point elsewhere in space.
17. To find the Zodiac constellation of your birth month, in the sky, on your birthday, you would
A. scan the northern sky near Polaris at night.
B. go blind looking for it behind the sun at noon (or use a phone app to safely view it).
C. read your horoscope.
D. Look for a lunar eclipse.
18. Solar noon occurs:
A. at 12 pm exactly.
B. when the sun reaches its highest point in the sky each day.
C. At 12 pm or 1 pm, depending on whether is it Daylight Savings Time.
D. only during solstices and equinoxes.
19. Pick the scientific statement about the Zodiac that is not true
A. There are 12 Zodiac signs on the ecliptic.
B. There are 13 Zodiac signs on the ecliptic.
C. On your birthday âyourâ Zodiac sign is found behind the sun at noon that day.
D. Astronomy is a science, Astrology is a belief system with historical scientific roots.
20. A âsolarâ or âtropicalâ year
A. is 365.24 days. c. is only found within 23.5° of the equator.
B. is 365 days. d. occurs every 4 years.
Answers: 1
Physics, 21.06.2019 13:40
How will each of the following changes in demand and/or supply affect equilibrium price and equilibrium quantity in a competitive market; that is, do price and quantity increase or decrease, or are the answers indeterminate because they depend on the magnitudes of the shifts?
Answers: 3
Physics, 21.06.2019 20:20
Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?
Answers: 1
Physics, 21.06.2019 20:30
Protons and neutrons are found within the nucleus of an atom
Answers: 2
Physics, 22.06.2019 16:00
The amount of potential energy possessed by an elevated object is equal to what?
Answers: 1
15. Galileo and other 15th century astronomers found Mercury, Venus, Mars, Jupiter, and Saturn in th...
Mathematics, 19.02.2021 23:40
Advanced Placement (AP), 19.02.2021 23:40
Mathematics, 19.02.2021 23:40
English, 19.02.2021 23:40
Biology, 19.02.2021 23:40
Medicine, 19.02.2021 23:40
English, 19.02.2021 23:40
Physics, 19.02.2021 23:40
Spanish, 19.02.2021 23:40
Mathematics, 19.02.2021 23:40
Health, 19.02.2021 23:40