Q&A Hero

Physic

Q: The solar system is a complex system of moving masses held together by ______________ forces.
Q: Other planetary systems are best detected by the Doppler shifts that change the pattern of the star's A) spectrum. B) brightness. C) rotational period. D) twinkling.
Q: Planets in a planetary system other than the solar system A) have never been detected. B) have been detected. C) are an impossibility. D) are universally present.
Q: Which of the following is a technique used by astronomers in their search for other planetary systems? A) Observation of the star's rotation only B) Observation of the Doppler shifts in the star's spectrum only C) Both (A) and (B) D) The search for alien signals
Q: Which of the following is believed to have played a major role in the condensation process predicted by the condensation theory? A) Dust B) Temperature C) Retrograde motion D) Protosuns
Q: At present, the formation of the solar system is believed by most astronomers to have begun with a large, swirling volume of cold gas and dust called the ______________ nebula. A) condensation B) primordial C) accretion D) celestial
Q: The flattened, rotating disk of gas and dust around the protosun, from which planets were believed to have formed, is called the A) solar nebula. B) planetary nebula. C) condensation nebula. D) primordial nebula.
Q: The Venus lacks A) an atmosphere. B) a solid surface. C) a moon. D) a gravitational field.
Q: The smallest major planet in the solar system lacks A) a surface. B) a solid surface. C) a moon. D) a gravitational field.
Q: Which of the following is the smallest dwarf planet? A) Ceres B) Mercury C) Pluto D) Eris
Q: Which of the following is the largest dwarf planet? A) Ceres B) Mercury C) Pluto D) Eris
Q: Which of the following is not a dwarf planet? A) Ceres B) Mercury C) Pluto D) Eris
Q: The planet with the largest volcano in the solar system is A) Earth. B) Mars. C) Venus. D) Mercury.
Q: The planet with the most prominent rings is A) Jupiter. B) Saturn. C) Uranus. D) Neptune.
Q: The planet with the largest number of moons is A) Jupiter. B) Saturn. C) Uranus. D) Neptune.
Q: The planet with the Great Dark Spot is A) Jupiter. B) Saturn. C) Uranus. D) Neptune.
Q: The planet with a hexagonally shaped storm at its pole is A) Jupiter. B) Neptune. C) Uranus. D) Saturn. E) Mars.
Q: The planet with Red Spot Junior is A) Jupiter. B) Neptune. C) Uranus. D) Saturn. E) Mars.
Q: The largest planet in the solar system is A) Jupiter. B) Neptune. C) Uranus. D) Saturn. E) Mars.
Q: The planet with the Great Red Spot is A) Jupiter. B) Neptune. C) Uranus. D) Saturn. E) Mars.
Q: The planet whose axis of rotation lies almost in its orbital plane is A) Neptune. B) Uranus. C) Saturn. D) Jupiter.
Q: The most distant planet that can be seen with the unaided eye is A) Jupiter. B) Saturn. C) Uranus. D) Neptune.
Q: The terrestrial planets and the Jovian planets are distinguished from each other in terms of A) density only. B) size only. C) temperature only. D) all of these.
Q: The Jovian planets A) are composed mainly of hydrogen and helium. B) have no solid surface. C) have rings. D) all of these.
Q: A terrestrial planet that has seasonal changes is A) Venus. B) Mars. C) Mercury. D) Saturn.
Q: The brightest object in the sky is A) the Sun. B) the Moon. C) Venus. D) Mars.
Q: The second brightest object in the sky is A) the Sun. B) the Moon. C) Venus. D) Mars.
Q: A high tide is occurring at Charleston, South Carolina (80W,33N). What two longitudes are experiencing low tide?
Q: A high tide is occurring at Charleston, South Carolina (80W, 33N). At approximately what other longitude is a high tide occurring?
Q: It is 12:00 noon local solar time at 75W. The date is March 21. At what longitude would an observer be able to see the last-quarter moon rising?
Q: At what longitude is an observer who sees the last-quarter moon on his meridian when it is 12:00 noon local solar time at 75W?
Q: The local solar time at 75W is 12:00 noon. What is the longitude of an observer who sees the full moon on her meridian at this time?
Q: The first mate of a pirate ship shoots the noonday Sun with a sextant and measures the altitude to be 50oto the south on December 21. The time on the ship's clock is 4 P.M. (GMT). What are the longitude and latitude of the ship?
Q: Using a sextant, a ship's captain measures the altitude of the noonday Sun to be 20oon June 21. What is the latitude of the ship?
Q: Determine the maximum altitude of the Sun on December 22 for an observer located at 30N.
Q: Determine the maximum altitude of the Sun on June 21 for an observer located at 30N.
Q: When it is 12 noon, May 6, in Perth, Australia (33S, 116E), what are the standard time and date in Ottawa, Canada (44N, 76W)?
Q: What are the standard time and date (time of day and day of month) in Kyoto, Japan (135E, 35N), when it is 11 A.M. EST on March 10 in Washington, D.C. (39N, 77W)?
Q: When the noonday Sun is overhead in London, England, on April 15, what are the standard time and date in San Francisco?
Q: During one year, what is the apparent change in the noonday Sun's overhead latitude?
Q: Describe whether the Sun rises earlier or later as the days pass during the period from June 15 to July 1 for people in Hawaii (general latitude, 20N).
Q: Suppose you start at Washington, D.C. (39N, 77W), and travel 400 nautical miles due south, then 400 nautical miles due east, then 400 nautical miles due north, and then 400 nautical miles due west. Where will you arrive with respect to Washington, D.C.? That is will you be at the starting point, or north, south, east, or west of the starting point?
Q: What are the latitude and longitude of a place on Earth directly opposite Columbia, South Carolina, which is at 81W, 34N?
Q: Which two of the following places are nearest to each other? Place Aat latitude 20N, longitude 90W Place Bat latitude 30N, longitude 90W Place Cat latitude 30N, longitude 75W Place Dat latitude 20N, longitude 75W
Q: Determine the distance in nautical miles between point A, located at 45N, 75W, and point B, located at 30S, 75W.
Q: Daylight Saving Time begins on the first Sunday of ______________ and ends on the last Sunday in ______________.
Q: The main purpose of DST is to save _____________.
Q: When the IDL is crossed going from east to west, a day is ________.
Q: When one crosses the International Date Line traveling eastward, one day is ______________ the present date.
Q: Our current calendar is the____________ calendar.
Q: Daylight hours and night hours are equal in duration throughout the year at the ______________.
Q: Our present days of the week are related to the names of the Sun, the Moon, and ______________ planets.
Q: At the time of the summer solstice, all latitudes from ______________ to 90N are having 24 hours of daylight.
Q: The parallel that is a great circle is the ______________.
Q: All meridians are one-half of a(n) ______________.
Q: A(n) ______________ is any circle on the surface of a sphere whose center is at the center of the sphere.
Q: A two-dimensional coordinate system is called a(n) ______________ coordinate system.
Q: The angle or arc distance of a point on the celestial sphere from the zenith is called the ______________ angle.
Q: The point in the sky directly above an observer's head is called the ______________.
Q: The angle measured from the horizon to the line of sight to the celestial object is called the ______________.
Q: Longitude can be defined as the angular measurement, in degrees, east or west of the ______________ meridian.
Q: The calendar we presently use is the ______________ calendar.
Q: The equator has approximately ______________ hours of daylight every day of the year.
Q: The number of daylight hours before 12 noon is approximately the ______________ as the number after 12 noon.
Q: The number of daylight hours at any place on Earth's oceans depends on the ______________ and the ______________ of the year.
Q: For a period after June 21, in Hawaii sunrise occurs ______________ each day.
Q: For a period after June 21 for locations above 23 N, sunrise in the conterminous United States occurs _____________________ each day.
Q: The flat, distorted maps of the world are _____________.
Q: The International Date Line is a theoretical line following approximately the ______________ meridian.
Q: A sidereal day is ______________ than a solar day.
Q: The elapsed time between two successive crossings of the same meridian by a star other than the Sun is known as the ______________ day.
Q: The elapsed time between two successive crossings of the same meridian by the Sun is known as the ______________ solar day.
Q: The Sun is at the autumnal equinox on ______________.
Q: When the ______________ is crossed traveling westward, the date is advanced to the next day.
Q: Coordinated Universal Time (UTC) is based on ___________.
Q: The international standard time is called ____________.
Q: "Zulu" is the designation for _____________ time.
Q: Some people mistakenly call noon and midnight ______________ and ______________.
Q: A time zone is theoretically ______________ wide.
Q: The slow, 25,800-year rotation of Earth's axis is called ______________.
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