Test questions and answers of knowledge contest

Examination papers and answers of preliminary contest of 2004 Astronomical Olympic Competition (junior group)

April 3(rd), 2004

Admission ticket number _ _ _ _ _ _ _ Name _ _ _ _ _ _ _

Date of birth: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Precautions:

1. This volume is a closed-book exam. Respondents are requested to complete the answer sheet independently according to their real level.

And carefully and completely fill in the relevant information and the time of handing in the paper and sign it. After the invigilator announced the end of the exam

Don't answer the questions then. Please fold the test paper in half from the middle to the left and right when handing it in.

2. Choose the closest correct answer to each question and put the corresponding letters in brackets.

If each question is correct, get 4 points; If you choose "(e) I don't know", get 0 point; If you don't choose or choose the answer that doesn't exist, deduct 1 point.

Deduct 4 points for wrong answer. The draft can be written in the blank space next to the topic or on the back.

3. The answers and finalists will be published in the fourth issue of Astronomical Enthusiasts on April 20th, 2004.

Published in magazines, published on the website of Beijing Planetarium.

0 1. Altair is located in ().

(a) Taurus (b) Eagle (c) Pegasus (d) Cygnus (e) I don't know.

02. Sirius is located in ().

(a) Ursa major (b) Ursa minor (c) Ursa major (d) Ursa minor (e) I don't know.

03. The Pleiades cluster is located in ().

(a) Perseus (b) Andromeda (c) Gemini (d) Taurus (e) I don't know.

04.M42 is located in ().

(a) Taurus (b) Scorpio (c) Ursa major (d) Orion (e) I don't know.

05. The farthest from the direction of the Milky Way in the following constellations is ().

(a) Cygnus (b) Capricorn (c) Cassiopeia (d) Perseus (e) I don't know.

06. At present, the astronomical popular science publication officially issued in China is ().

(a) sky and telescope (b) starlight communication (c) astronomers (d) planetarium research.

I don't know

07. In the 2003 International Astronomical Olympiad, China won () medals.

I don't know

08. Players of China Team who have won the Astronomy Award of Intel International Science and Engineering Grand Prix in recent years.

Yes ().

(a) Ceng Li (b) Meng Huan (c) Liang Yue (d) Zhao Weihong (e) I don't know.

09. So far, the person who found the most SOHO comets in China is ().

(1) Ge He (2) Zhang Daqing and Meng Huan (3) He.

Li Weidong and Zhu Jin don't know.

10. Among the following names, the one named asteroid is ().

(a) Zhu Jin (b) Meng Huan (c) Zhang Daqing (d) Ricky (e) I don't know.

1 1. A light year is about () astronomical units.

(a) 3.3 (b) 38 (c) 63,000 (d) 65,438+500 million (e) I don't know.

12. The size of the Milky Way is about 100 light years.

(a) less than 10 (b)1000 (c)100000 (d) more than100000 (e) I don't know.

13. Seen from the earth, the size of the sun and the moon ().

(a) About the same size (b) The sun is much bigger than the moon (c) The moon is much bigger than the sun.

(d) At least more than 20% (e) I don't know.

14. From the ground, Venus looks very bright on a clear night, but in bad weather or

It doesn't look so bright when it's not very dark In both cases, the magnitude of Venus ().

(a) No change; (b) There are some differences. The star equivalent is higher when it is dark.

(c) There are some differences. When it is not dark, the star equivalent is higher. (d) There are great differences. I don't know.

15. In early May 2004, the number of comets most likely to be directly observed with naked eyes in Beijing was ().

(a) 55p (b) C/2001Q 4 (c) C/2002C1D) C/2002T7 (e) I don't know.

16. The luminous height of meteors we see at night is compared with the flying height of ordinary civil aircraft ().

(a) Lower (b) Almost (c) About high 10 times (d) At least high 100 times (e) I don't know.

17. It is impossible to observe () on Jupiter.

(a) the great distance to the west of the earth (b) the conjunction of Saturn and the sun (c) the collision between Mars and the sun (d) the collision between Neptune and the sun (e) I don't know.

18. The most suitable magnification for observing the impact of Mars with an 8 cm refracting telescope is () times.

I don't know

19. The time in transit of venus in recent years is ().

(May 7, 2003 (June 8, 2004 (2005 10)

(d) 2006165438+19 October (e) I don't know.

Some media said that the "five-star alignment" that appeared in late March 2004 actually refers to the five major planets.

() phenomenon.

(a) Seen from the ground, the maximum angular distance between them does not exceed 60 degrees.

(b) Appear above the horizon of the observation site at the same time.

(c) Seen from the direction perpendicular to the ecliptic plane outside the solar system, their projections on the ecliptic plane are roughly in a straight line.

(d) The maximum angular distance between them does not exceed 60 degrees (e) I don't know.

21.On March 15, 2004, American astronomers announced the discovery of a solar system object farthest from the sun.

Sedna. Compared with other solar system objects discovered by people, ().

(a) Its nearest distance is the largest; (b) It has the largest average distance from the sun; (c) It is the farthest from the sun.

(d) It has the longest period around the sun.

I don't know

According to the newspaper, experts pointed out that "the opening angle of human eye resolution is 0. 1 degree. Suppose the flying height of the spacecraft is

300 kilometers, only an object with a length and width of 500 meters can appear as a point in the human eye, thus being

Nobody saw it. The width of the Great Wall is only about 10 meter, which is obviously not up to standard. The Great Wall at an altitude of 36 kilometers.

Will disappear from our sight. Therefore, it is impossible to see the Great Wall from space. If the reporter didn't report it,

It's wrong. Your opinion on this issue is ().

What the experts said is basically correct. (b) The logic and conclusion of expert argumentation are correct, but the specific calculation is wrong.

(c) What the experts said is not comprehensive. We should consider the length of the Great Wall rather than its width.

Experts are wrong. Whether an object can be seen or not does not depend on how small it is. I don't know.

23. Universal Time 12, when Beijing time was ().

(a) I don't know the previous day's 20 (B) 4 (C) 20 (D) and the next day's 4 (E).

24. Use the same equipment to observe the same star every six months and find its position relative to the edge.

A galaxy that has moved by 0.5 arc seconds. Half a year later, I found it returned to its position a year ago.

Then the distance of this star from us is about () astronomical units.

(a) 50,000 (b) 265,438+0,000 (c) 465,438+0,000 (d) 830,000 (e) I don't know.

25. In the famous fairy tale "The Emperor's New Clothes", the character that best conforms to the astronomer's personality is ().

(a) King (b) Minister (c) Tailor (d) Child (e) I don't know.

Completion time: _ _ _ _ _ _ _ Signature: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Answer: BCDDBCDBCBCCAABCCBBBADCDD