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How to navigate using the sun
  • 1. At what time of day is the sun at its highest point in the sky?
A) Sunrise
B) Solar noon
C) Sunset
D) Midnight
  • 2. What direction does the sun generally rise in?
A) North
B) East
C) West
D) South
  • 3. What direction does the sun generally set in?
A) North
B) South
C) West
D) East
  • 4. In the Northern Hemisphere, shadows cast by the sun move in what direction throughout the day?
A) Clockwise
B) Counter-clockwise
C) South to North
D) North to South
  • 5. In the Southern Hemisphere, shadows cast by the sun move in what direction throughout the day?
A) North to South
B) Counter-clockwise
C) South to North
D) Clockwise
  • 6. When using the sun as a compass, what additional tool is most helpful?
A) A watch
B) A map
C) A telescope
D) A sextant
  • 7. What is the primary limitation of using the sun for navigation?
A) Requires a compass
B) Requires clear skies
C) Only works at noon
D) Only works at night
  • 8. During the equinoxes, where does the sun rise?
A) Due West
B) Due North
C) Due South
D) Due East
  • 9. How does latitude affect the sun's path in the sky?
A) Higher latitude, lower angle
B) Latitude doesn't affect the angle
C) Higher latitude, higher angle
D) Only affects direction
  • 10. What is the approximate angle of the sun at solar noon at the equator?
A) 90 degrees
B) 180 degrees
C) 45 degrees
D) 0 degrees
  • 11. What is the term for the position of the sun in the sky?
A) Azimuth
B) Celestial latitude
C) Zenith distance
D) Solar altitude
  • 12. What is the term for the angular measurement of the sun's position along the horizon?
A) Azimuth
B) Declination
C) Altitude
D) Zenith
  • 13. How does Daylight Saving Time affect solar noon?
A) Reverses it
B) Shifts it earlier
C) Shifts it later
D) No effect
  • 14. What is the effect of the seasons on the sun's path?
A) Only effects temperature
B) No effect
C) Alters the arc of the sun
D) Only effects sunrise and sunset times
  • 15. When is the sun directly overhead at the Tropic of Cancer?
A) Spring equinox
B) Winter solstice
C) Summer solstice
D) Autumn equinox
  • 16. When is the sun directly overhead at the Tropic of Capricorn?
A) Summer Solstice
B) Spring Equinox
C) Winter Solstice
D) Autumn Equinox
  • 17. What is a sundial used for?
A) Telling time
B) Finding direction
C) Predicting weather
D) Measuring latitude
  • 18. What celestial coordinate system is useful for predicting the suns position?
A) Ecliptic Coordinate System
B) Galactic Coordinate System
C) Equatorial Coordinate System
D) Horizontal Coordinate System
  • 19. Why is it dangerous to look directly at the sun?
A) Can cause sunburn
B) Can damage your eyes
C) Can damage your skin
D) It's bad luck
  • 20. What is the equation of time used for in sun navigation?
A) Finding latitude
B) Finding longitude
C) Predicting sunrise
D) Correcting sundial time
  • 21. How many degrees does the sun appear to move across the sky each hour?
A) 1 degree
B) 15 degrees
C) 30 degrees
D) 60 degrees
  • 22. What is the name of the point on the celestial sphere directly overhead?
A) Equator
B) Nadir
C) Horizon
D) Zenith
  • 23. Which of these is a challenge to solar navigation at sea?
A) Lack of maps
B) Constant darkness
C) GPS availability
D) Cloud cover
  • 24. What is declination in astronomical terms?
A) Angular distance north or south of equator
B) Height of the sun above horizon
C) Angular distance east or west
D) Horizontal distance of the sun
  • 25. What is necessary to determine longitude using the sun?
A) Accurate time
B) Compass
C) Star chart
D) Latitude
  • 26. The 'shadow tip' method relies on observing?
A) The darkest shadow cast
B) The shortest shadow of a vertical object
C) The shadow on a sundial
D) The shadow of a cloud
  • 27. What does the term 'solar day' refer to?
A) Time the sun is visible
B) Time between successive solar noons
C) Time from sunrise to sunset
D) Time it takes for the sun to orbit
  • 28. For accurate sun-based navigation, it's crucial to account for:
A) Geographic location and time of year
B) Barometric pressure
C) Number of visible stars
D) Wind speed
  • 29. What is the gnomen of a sundial?
A) The decorative markings
B) The part that casts a shadow
C) The cover of the sundial
D) The base of the sundial
  • 30. Why is it important to know the time zone when using the sun to navigate?
A) Time zones have no effect
B) Time zones change solar noon
C) To determine the weather
D) For determining the season
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