Astronomy Practice Test

Transcription

1 Name: ate: 1. In laska, there are fewer hours of daylight in the winter than in the summer. Which statement best explains why this difference occurs?. The Sun burns hotter in the summer.. The Sun moves below the horizon in the summer. C. The Northern Hemisphere is closer to the Sun in the winter.. The Northern Hemisphere is tilted away from the Sun in the winter. 2. Study the diagram below. Which of these identifies what someone on Earth could see when the Earth and Moon are in the positions shown in the drawing?. a solar eclipse. a lunar eclipse C. a quarter moon. a full moon page 1

2 3. The Earth is tilted degrees on its axis. The direction of the Earth s tilt does not change throughout its orbit. t which position of Earth is it summer in the northern hemisphere?. W. X C. Y. Z 4. What positions of the moon (M) will create the greater tidal range?. or. or C C. or. or C page 2

3 5. Why does the moon have a greater effect on the tides than the sun?. The moon is larger than the sun.. The moon is solid while the sun is gaseous. C. The moon rotates more quickly than the sun.. The moon is closer than the sun to the Earth. 6. The seasons of the year on Earth are determined by the.. speed of the Earth s revolution. speed of the Earth s rotation C. shape of the Earth s orbit relative to the sun. tilt of the Earth s axis relative to the sun 7. Why is there a full Moon approximately once a month?. The Moon revolves around the Earth once a month.. The Moon rotates on its axis once a month. C. The Moon revolves around the Sun once a month.. The Moon does not rotate on its axis. 8. Which of these is caused by the rotation of Earth?. Tides. ays and nights C. Spring and fall. Rainfall page 3

4 9. Which of these causes summer in the northern hemisphere?. The Sun is closer to Earth during the summer.. The North Pole is tilted away from the Sun during the summer. C. The northern hemisphere receives more direct sunlight during the summer. Earth s northern axis is tilted away from the Sun during the summer. 10. Which diagram shows the Earth-moon-sun system arranged to cause a total solar eclipse?.. C t what time on a sunny day will the shadow of the school s flagpole be the shortest?. sunrise. noon C. mid-afternoon. sunset 12. Summer is warmer than other seasons in the Northern Hemisphere because. Earth is closer to the Sun.. rays of sunlight are more direct. C. the Moon blocks fewer of the Sun s warming rays.. more wind tends to come from warm areas near the equator. page 4

5 13. student made the drawing below to show the order of several phases of the Moon. One of the phases is missing. Which of the following pictures shows the phase of the Moon that is missing from the drawing?.. C The diagram below shows a polar projection of Earth, the Sun, and four positions of the Moon. Which position of the Moon could cause a solar eclipse? C Which of the following pictures shows the appearance of the Moon when a solar eclipse occurs?.. C.. page 5

6 16. The diagram below shows the relative positions of Earth and the Moon and rays of sunlight. ased on the diagram, which of the following best represents how the Moon would appear as seen from Earth?.. C Tides, such as those along the coast of Massachusetts, are caused by gravitational attractions acting on Earth. Why is the gravitational attraction of the Moon a greater factor in determining tides than the gravitational attraction of the much larger Sun?. Earth is much closer to the Moon than to the Sun.. The Sun s gravity is a factor only during the day. C. The Moon s core has a much greater density than the Sun s core.. The Sun s mass is smaller than the mass of the Moon. page 6

7 18. Use the information below to answer the following question(s). The diagram below represents the relationship among Earth, the sun, and the moon. ccording to the diagram, the rays from the sun are striking the Northern Hemisphere. What season does this represent in the Northern Hemisphere?. fall. spring C. summer. winter 19. Which statement best describes the orbit of Earth around the sun?. Earth s orbit is elliptical.. Earth s orbit is irregularly-shaped. C. Earth s orbit takes about 30 days to complete.. Earth s orbit takes about 24 hours to complete. 20. Which sentence explains why we see the phases of the Moon?. The Moon is a large planet.. The Moon revolves around Earth. C. The Moon is covered with many craters.. The Moon revolves around the Sun. 21. Where does the energy that heats most of Earth s surface come from?. melted rock in the center of Earth. hot rocks from new volcanoes C. sunlight entering Earth s atmosphere. plants making food energy for animals page 7

8 22. Which gravitational pull has the greatest influence on Earth s tides?. the gravitational pull between Earth and the Moon. the gravitational pull between Earth and the Sun C. the gravitational pull between Earth and Jupiter. the gravitational pull between Earth and Mars 23. What phase of the Moon will come next in the sequence shown above?.. C If the Moon did not rotate at the same rate that it revolved, which of the following would be true?. There would be no more tides.. We would no longer see eclipses. C. The cycle of the Moon s phases would repeat faster.. We would be able to see all sides of the Moon. 25. ased on the red-shift data on galaxies, most astronomers infer that the universe is currently. expanding. contracting C. moving randomly. fixed and stationary 26. Compared to Earth s solar system, the universe is inferred to be. younger and larger. younger and smaller C. older and larger. older and smaller 27. Which process produces the energy that allows the stars of the universe to radiate visible light?. convection. nuclear fusion C. insolation. radioactive decay page 8

9 28. Which object forms by the contraction of a large sphere of gases causing the nuclear fusion of lighter elements into heavier elements?. comet. planet C. star. moon 29. The symbols below are used to represent different regions of space. Which diagram shows the correct relationship between these four regions? [If one symbol is within another symbol, that means it is part of, or included in, that symbol.].. C.. page 9

10 30. ase your answer(s) to the following question(s) on the diagram below, which shows the heliocentric model of a part of our solar system. The planets closest to the Sun are shown. Point is a location on Earth s equator. On the graph below, draw a line to show the general relationship between a planet s distance from the Sun and the planet s period of revolution. page 10

11 Problem-ttic format version c Educide Software Licensed for use by Lori Zimmerman Terms of Use at 02/09/ C C C 28. C C 19.