SCIENCE QUIZ NO. 8 ASTRONOMY

[magpie in the 80's]

1. Which moon of Saturn was almost shattered by the object that produced the Herschel Crater on its surface?
MIMAS
2. In 2136 B.C. the two Imperial Court astronomers in China were executed for not predicting a solar eclipse. Name them?
HS1 AND HO
3. In what year did Galileo Galilei begin using the recently invented optical telescope to observe the heavens?
1609
4. What is the magnitude of the Sun from Earth?
-26.72
5. Which planet in our solar system is less dense than water which means that if all the planets were put into a huge ocean this planet would float?
SATURN
6. Which of the four great Galilean moons around Jupiter is the closest to the planet?
Io
7. How long is Earth's sidereal year?
A) 364.987 days B)365.87 days C) 365.256 days D) 365.242 days
C 365.242 DAYS
8. How long is a mean tropical year?
A) 366.012 days B) 365.256 days C) 365.242 days D) 365.687 days
C) 365.242
9. In the year 14,000 which star will be the pole star?
EGA
10. In which vast area (50,000-100,000 A.U. in extent) are most long-period comets believed to originate?
OORT CLOUD
11. How long is the sidereal day of the moon?
A) 27.3 earth days B) 29.4 earth days C) 28 earth days D) 26.6 earth days
A) 27.3 DAYS
12. Which American astronomer first described a subset of spiral galaxies characterized by one bright central region containing strong, broad emission lines in 1944?
CARL K. SEYFORT
13. Mars has two moons-Phobos and Deimos. What do those names literally mean?
FEAR AND PANIC
14. How many planets have rings?
4
15. Which planet is the largest of the terrestrial planets?
EARTH
16. The first telescope to be used for astronomy purposes by Galileo Galilei was which kind of telescope?
REFRACTOR
17. To astronomers anything that interferes with observing, such as smog, fog, and dust, is called what?
SKY POLLUTION
18. The word gibbous(used to describe the moon during the waxing and waning phases when more than half of the moon can be seen) is a Middle English word meaning what?
BULGING
19. The reflecting telescope was first built by what Scottsman?
JAMES GREGORY
20. What is the angular size of the moon?
A half of a degree B 1800 arcseconds C 30 arcminutes D All of the other answers are correct
D ALL OTHER ANSWERS ARE CORRECT
21. One parsec is equal to what?
A) 302,481 A.U. B) 150,945 A.U. C) 206,265 A.U. D) 197,694 A.U.
C) 206,265 A.U.
22. A star of spectral class B has a surface temperature of what?
A) 10,000-28,000 K B) 10,000 K C) 7,000 K D) 6,000 K
A) 10,000-28,000 K
23. Who is considered to be the father of radio astronomy?
KARL JANSKY
24. The famous Perseid meteor shower is well known. A lesser known fact is the comet it orginates from. What is the parent comet of the Perseids?
A) Encke B) 3200 Phaeton C) Halley D) 1862III (Swift-Tuttle)
D. 1862III (SWIFT - TUTTLE)
25. One particular meteor shower isn't usually very big. It usually produces about 10 meteors per hour. However, once every 33 years the earth intersects the densest part of the debris path producing about 1,000 meteors a minute! What is the name of this extraordinary meteor shower?
LEONIDS

[Baron Greenback]

13. Flight and fear
14. 2 - Saturn and Uranus
15. Earth

[Interceptor]

5. Which planet in our solar system is less dense than water which means that if all the planets were put into a huge ocean this planet would float? Saturn
6. Which of the four great Galilean moons around Jupiter is the closest to the planet? Io
10. In which vast area (50,000-100,000 A.U. in extent) are most long-period comets believed to originate? Oort Cloud
16. The first telescope to be used for astronomy purposes by Galileo Galilei was which kind of telescope? refractive?

[magpie in the 80's]

13. Flight and fear........FEAR YES FLIGHT NO
14. 2 - Saturn and Uranus............INCORRECT
15. Earth...........CORRECT

[magpie in the 80's]

5. Which planet in our solar system is less dense than water which means that if all the planets were put into a huge ocean this planet would float? Saturn
6. Which of the four great Galilean moons around Jupiter is the closest to the planet? Io
10. In which vast area (50,000-100,000 A.U. in extent) are most long-period comets believed to originate? Oort Cloud
16. The first telescope to be used for astronomy purposes by Galileo Galilei was which kind of telescope? refractive?

ALL CORRECT INTER

[JAS]

Morning Mags

Q20 D
Q24 D sounds familiar
Q25 Leonids ?

Regards
JAS

[Pseudo]

1 - Mimas
7 - C
14 - 4. Jupiter, Saturn, Uranus, Neptune.
20 - D.
23 - Marconi?

[magpie in the 80's]

Morning Mags

Q20 D
Q24 D sounds familiar
Q25 Leonids ?

Regards
JAS

CORREC TJAS

[magpie in the 80's]

1 - Mimas
7 - C
14 - 4. Jupiter, Saturn, Uranus, Neptune.
20 - D.
23 - Marconi?.........INCORRECT

OTHERS CORRECT PSEUDO

[JAS]

Q23 Something that important must have stuff named after him...Hubble ?

Regards
JAS

[magpie in the 80's]

Q23 Something that important must have stuff named after him...Hubble ?

Regards
JAS

INCORRECT JAS

[JAS]

Q23 How about Joderell (I think that the big telescope in the UK) or Mr Very Large Array

Regards
JAS

[magpie in the 80's]

Q23 How about Joderell (I think that the big telescope in the UK) or Mr Very Large Array

Regards
JAS

incorrect jas

[magpie in the 80's]

GET OUT YOUR TELESCOPES SCIENCE FANS

[magpie in the 80's]

LAST DAYS FOR THIS QUIZ

[magpie in the 80's]

LAST DAYS FOR THIS QUIZ

this quiz finishes tomorrow

[Tassie Blues]

8 is B 365.256

[magpie in the 80's]

8 is B 365.256

INCORRECT TB

[magpie in the 80's]

1. Which moon of Saturn was almost shattered by the object that produced the Herschel Crater on its surface?
MIMAS
2. In 2136 B.C. the two Imperial Court astronomers in China were executed for not predicting a solar eclipse. Name them?
HS1 AND HO
3. In what year did Galileo Galilei begin using the recently invented optical telescope to observe the heavens?
1609
4. What is the magnitude of the Sun from Earth?
-26.72
5. Which planet in our solar system is less dense than water which means that if all the planets were put into a huge ocean this planet would float?
SATURN
6. Which of the four great Galilean moons around Jupiter is the closest to the planet?
Io
7. How long is Earth's sidereal year?
A) 364.987 days B)365.87 days C) 365.256 days D) 365.242 days
C 365.242 DAYS
8. How long is a mean tropical year?
A) 366.012 days B) 365.256 days C) 365.242 days D) 365.687 days
C) 365.242
9. In the year 14,000 which star will be the pole star?
EGA
10. In which vast area (50,000-100,000 A.U. in extent) are most long-period comets believed to originate?
OORT CLOUD
11. How long is the sidereal day of the moon?
A) 27.3 earth days B) 29.4 earth days C) 28 earth days D) 26.6 earth days
A) 27.3 DAYS
12. Which American astronomer first described a subset of spiral galaxies characterized by one bright central region containing strong, broad emission lines in 1944?
CARL K. SEYFORT
13. Mars has two moons-Phobos and Deimos. What do those names literally mean?
FEAR AND PANIC
14. How many planets have rings?
4
15. Which planet is the largest of the terrestrial planets?
EARTH
16. The first telescope to be used for astronomy purposes by Galileo Galilei was which kind of telescope?
REFRACTOR
17. To astronomers anything that interferes with observing, such as smog, fog, and dust, is called what?
SKY POLLUTION
18. The word gibbous(used to describe the moon during the waxing and waning phases when more than half of the moon can be seen) is a Middle English word meaning what?
BULGING
19. The reflecting telescope was first built by what Scottsman?
JAMES GREGORY
20. What is the angular size of the moon?
A half of a degree B 1800 arcseconds C 30 arcminutes D All of the other answers are correct
D ALL OTHER ANSWERS ARE CORRECT
21. One parsec is equal to what?
A) 302,481 A.U. B) 150,945 A.U. C) 206,265 A.U. D) 197,694 A.U.
C) 206,265 A.U.
22. A star of spectral class B has a surface temperature of what?
A) 10,000-28,000 K B) 10,000 K C) 7,000 K D) 6,000 K
A) 10,000-28,000 K
23. Who is considered to be the father of radio astronomy?
KARL JANSKY
24. The famous Perseid meteor shower is well known. A lesser known fact is the comet it orginates from. What is the parent comet of the Perseids?
A) Encke B) 3200 Phaeton C) Halley D) 1862III (Swift-Tuttle)
D. 1862III (SWIFT - TUTTLE)
25. One particular meteor shower isn't usually very big. It usually produces about 10 meteors per hour. However, once every 33 years the earth intersects the densest part of the debris path producing about 1,000 meteors a minute! What is the name of this extraordinary meteor shower?
LEONIDS

QUESTIONS ANSWERED ARE IN RED.
QUESTIONS UNANSWERED ARE IN BLUE.

END OF QUIZ