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