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Seasons & sun's Path
 

Seasons & sun's Path

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    Seasons & sun's Path Seasons & sun's Path Document Transcript

    • Name:_____________________________________________________________ Period:____________ Date:________________Unit 2: Astronomy Seasons & Suns Path 1. Base your answer to the following question on the diagrams below, which show the apparent path and solar noon positions of the Sun on specific dates at three different locations on Earth. What evidence indicates that the observer at location A is at the equator? 2. Which graph best represents the average monthly temperatures for one year at a location in the Southern Hemisphere? 1) 2) 3) 4) 3. Which two factors cause the perpendicular rays of the 5. Which statement best describes the position of the Sun to move between 23.5º N and 23.5º S? Sun at sunrise and sunset as seen by an observer in 1) tilt of Earths axis and Earths revolution New York State on June 21? 2) eccentricity of Earths orbit and Earths revolution 1) The Sun rises north of due east and sets south 3) eccentricity of Earths orbit and Earths rotation of due west. 4) tilt of Earths axis and Earths rotation 2) The Sun rises south of due east and sets south 4. At which latitude is the Sun directly overhead on of due west. certain days of the year? 3) The Sun rises north of due east and sets north of due west. 1) 42° N 2) 23.5 ° N 4) The Sun rises south of due east and sets north 3) 66.5° N 4) 90° N of due west. Page 1
    • 6. Base your answer to the following question on on the diagram below, which shows the parts of Earth experiencing daylight and darkness as Earth orbits the Sun. Letters A, B, C, D, and E are positions in Earths orbit as viewed from above the Northern Hemisphere. On the grid, place Xs to show the duration of insolation at the Arctic Circle (66.5º N) as Earth orbits the Sun at positions A, B, C, and D. Connect the Xs with a line.7. Which motion causes the constellation Orion to be visible at midnight from New York State in winter but not in summer? 1) revolution of Orion 2) rotation of Orion 3) revolution of Earth 4) rotation of Earth8. If the axis of Earth were not tilted relative to the plane of its orbit around the Sun, the result would be 1) a reversal of polar and equatorial climates 2) an equal number of hours of daylight at most locations 3) a greater number of hours in a day 4) a greater number of days in a year Page 2
    • 9. A student in New York State looked toward the eastern horizon to observe sunrise at three different times during the year. The student drew the following diagram that shows the positions of sunrise, A, B, and C, during this one-year period. Which list correctly pairs the location of sunrise to the time of the year? 1) A—December 21 B—March 21 C—June 21 2) A—June 21 B—December 21 C—March 21 3) A—March 21 B—June 21 C—December 21 4) A—June 21 B—March 21 C—December 2110. Base your answer to the following question on the 11. The diagram below shows the shadow cast by a diagram below which shows twelve constellations that telephone pole on March 21 at solar noon at a are visible in the night sky to an observer in New location in New York State. Jersey, over the course of a year. Different positions of Earth are represented by letters A through D. The arrows represent the direction of Earths motion around the Sun. Which shadow was cast by the same telephone pole on June 21 at solar noon? 1) 2) Which constellations are both visible at midnight to an observer in New Jersey when Earth is located at position D? 1) Aries and Taurus 2) Pisces and Libra 3) Aquarius and Scorpio 3) 4) 4) Leo and Virgo Page 3
    • Base your answer to questions 12 and 13 the graph below, which shows the duration of daylight hours on throughout the year for five cities located in the Northern Hemisphere.12. hich city experiences the greatest variation in daylight hours during one year? W 1) Caracas 2) New Orleans 3) Mexico City 4) Edmonton13. hat is the primary reason each city’s duration of daylight hours changes throughout the year? W 1) The cities are located at different longitudes. 2) The cities are located at different elevations. 3) Earth’s rotation rate is 15° per day. 4) Earth’s axis is tilted 23.5 ° to the plane of its orbit.14. Base your answer to the following question on the diagram below, which represents Earth in its orbit around the Sun. The position of Earth on the first day of each season is labeled A, B, C, and D. What is the approximate rate of Earths revolution around the Sun? 1) 15° per year 2) 15° per day 3) 1 ° per year 4) 1° per day Page 4
    • 15. Base your answer to the following question on diagram below, which represents the Sun’s apparent paths and the solar noon positions for an observer at 42 ° N latitude on December 21, September 23, and June 21. Which graph best shows the altitude of the Sun, as measured by the observer located at 42 ° N, at various times on December 21? 1) 2) 3) 4) Page 5
    • 16. the diagram below, which shows a model of Earth’s orbit around the Sun. Two motions of Earth are indicated. Distances to the Sun are given for two positions of Earth in its orbit. Explain why Canada experiences summer when Earth is at its greatest distance from the Sun.17. The diagram below shows Earth as viewed from space. Which season is beginning in the Northern Hemisphere? 1) summer 2) winter 3) fall 4) spring18. The diagram below shows the noontime shadows cast by a student and a tree. If the time is solar noon and the student is located in New York State, in what direction is the student facing? 1) west 2) south 3) east 4) north Page 6
    • Base your answer to questions 19 through 21 on the diagram below, which represents Earth revolving around the Sun. Letters A, B, C, and D represent Earths location in its orbit on the first day of the four seasons. NP represents the North Pole.19. If the tilt of Earths axis were decreased from 23.5 ° to 15°, New York States winters would become 1) cooler, and summers would become cooler 2) cooler, and summers would become warmer 3) warmer, and summers would become warmer 4) warmer, and summers would become cooler20. Which location in Earths orbit represents the first day of summer in New York State? 1) A 2) B 3) C 4) D21. Which diagram best represents the Suns apparent path as seen by an observer at 43.5° N latitude on December 21? 1) 2) 3) 4) Page 7
    • 22. Base your answer to the following question on the diagram below, which shows Earth and the Moon in relation to the Sun. Positions A, B, C, and D show the Moon at specific locations in its orbit. Point X is a location on Earths surface. On what date does the line separating day and night pass through Earths North Pole, as shown in this diagram? 1) June 21 2) December 21 3) January 21 4) March 2123. Which model best represents the apparent path of the Sun observed at various times during the year at the Equator? 1) 2) 3) 4) Page 8
    • 24. Base your answer to the following question on the diagram below, which shows a model of Earth’s orbit around the Sun. Letters A, B, C, and D represent Earth’s position at the beginning of each season. How many degrees will the Sun’s vertical rays shift on Earth’s surface as Earth travels from position C to position D? 1) 15° 2) 23.5 ° 3) 47° 4) 365° Page 9
    • 25. Which diagram correctly shows the directions of Earths revolution and rotation? 1) 2) 3) 4) Page 10
    • Answer Key Seasons and Suns Path Practice Questions1. — The Sun is 16. • The North Pole is directly overhead at tilted toward the solar noon on Sun in the summer. March 2l. — • In summer, the The Sun reaches an Sun is higher in the altitude of 90º on an sky due to the tilt of equinox. — Earth’s axis. Each apparent path • New York State of the Sun has a receives higher daylight duration of angles of insolation 12 hours. in summer when2. 4 Earth is farthest from the Sun.3. 1 • New York State4. 2 receives lower5. 3 angles of insolation6. in winter when Earth is closest to the Sun. • greater duration of insolation 17. 2 18. 47. 3 19. 48. 2 20. 29. 4 21. 410. 4 22. 411. 1 23. 112. 4 24. 213. 4 25. 414. 415. 3 Page 11