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How many centimeters are there in one kilometer? 1. 100 2. 1,000 3. 10,000 4. 100,000 5. 1 10 6 QUESTION.

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Presentation on theme: "How many centimeters are there in one kilometer? 1. 100 2. 1,000 3. 10,000 4. 100,000 5. 1 10 6 QUESTION."— Presentation transcript:

1 How many centimeters are there in one kilometer? , , , QUESTION

2 Scientific notation is used in science because 1. it makes it easy to write big or small numbers. 2. all astronomical distances are expressed in metric units. 3. it makes conversions between units easy. 4. all of the above. QUESTION

3 The average distance from Earth to the Sun is 1. 1 ly 2. 1 million km 3. 1 million miles 4. 1 billion km million km QUESTION

4 The sun is 1. a star which generates its own energy AU from Earth. 3. visible by its own light emission. 4. all of the above. QUESTION

5 is the same as thousand thousand thousand million million QUESTION

6 Arrange the following distances in order from smallest to largest. I. kilometer II. light-year III. yard IV. Astronomical unit 1. I, II, III, IV 2. IV, III, II, I 3. III, I, IV, II 4. II, I, IV, III 5. III, I, II, IV QUESTION

7 If light takes 8 minutes to travel from the sun to Earth and over 4 hours to travel from the sun to the planet Neptune, what is the distance from the sun to Neptune? 1. 5 AU AU ly 4. 5 ly ly QUESTION

8 In the diagram below, what is the diameter of Jupiter? 1. About km. 2. About km. 3. About km. 4. About km. 5. About km. QUESTION

9 The speed of light is km/sec, and it takes light 1.3 sec for light to travel from the moon to Earth. From this information, what is the distance to the moon? ,000 km ,000 km km km km QUESTION

10 A typical galaxy like our Milky Way galaxy contains 1. primarily planets. 2. gas only. 3. stars (some with planets), gas and dust. 4. a single star and planets. 5. thousands of superclusters. QUESTION

11 The Milky Way Galaxy 1. contains about 100 billion stars. 2. is about 200 light-years in diameter. 3. is the largest known object in the universe. 4. all of the above and 3. QUESTION

12 The Milky Way Galaxy is 1. a spiral galaxy. 2. part of a cluster of galaxies that contains a few dozen galaxies. 3. about 80,000 light years in diameter. 4. all of the above. QUESTION

13 If the Earth were represented as a basketball (~10 in) and the Moon as a baseball (~3 in) then, to order of magnitude, what size would best represent the diameter of the Sun? ft ft ft ft QUESTION

14 Which sequence is correct when ordered by increasing size? 1. Earth, Solar System, Milky Way Galaxy, clusters of galaxies 2. Solar System, Earth, galaxy clusters, Milky Way Galaxy 3. Earth, Milky Way Galaxy, Solar System, galaxy clusters 4. Galaxy clusters, Solar System, Milky Way Galaxy, Earth QUESTION

15 How is a planet different from a star? 1. Planets are larger than stars. 2. Planets reflect light while stars produce their own light. 3. Stars move faster in the sky than planets. 4. Planets are brighter than stars. QUESTION

16 If the distance from the Sun to the Earth is represented by roughly 15 meters, then the distance from the Earth to the Moon on the same scale would be 1. about 30 meters. 2. about 10 meters. 3. about 1 meter. 4. small than your hand. QUESTION

17 Assume the size of the Sun is represented by a softball with the Earth about 15 meters (150 million km or 8 light minutes) away. Roughly how far away, to scale, would the nearest stars to the Sun be? 1. About the distance between New York and Boston (330 km) meters away. 3. About the distance across the United States from New York to Los Angeles (4300 km). 4. About the distance across 50 football fields (50 x 100 m). QUESTION

18 If the distance to the nearest star is 4.2 light- years, then 1. the star is 4.2 million AU away. 2. the light we see left the star 4.2 years ago. 3. the star must have formed 4.2 billion years ago. 4. the star must be very young. 5. the star must be very old. QUESTION

19 Assume a 100 yard football field represents the 14 billion year history of the universe with one end as the origin and the other end representing the present. The existence of human beings will extend from _____ to the present goal line. 1. the 50 yard line 2. the 5 yard line 3. the one yard line 4. the one inch line QUESTION

20 Which of these is NOT a common misconception? 1. A light year is a unit of time. 2. Stars look like disks when seen through a telescope. 3. A galaxy is a star plus its planets. 4. All of the above are misconceptions. QUESTION

21 The average distance from Earth to the Sun is 1 AU. 1. True 2. False QUESTION

22 A light-year is the distance light travels in one year. 1. True 2. False QUESTION

23 A kilometer contains 1 million meters. 1. True 2. False QUESTION

24 The Sun is a star in the Milky Way Galaxy. 1. True 2. False QUESTION

25 The metric system is a decimal system. 1. True 2. False QUESTION

26 km is the same as m. 1. True 2. False QUESTION

27 The numbers and 981,000 are equivalent. 1. True 2. False QUESTION

28 A supercluster refers to a large group of stars within the Milky Way. 1. True 2. False QUESTION


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