Astronomy Notes

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  • Topic: Earth, Sun, Astronomical unit
  • Pages : 5 (444 words )
  • Download(s) : 283
  • Published : December 5, 2012
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Quiz #1
The distances to other stars beyond the Sun are measured in: A) light years.
B) kilometers.
C) light months.
D) astronomical units.
E) light days
Correct Answer(s):
A
The parallax shift allows us to measure the distances to stars accurately. A) True
B) False
Correct Answer(s):
True
Which of the following describes parallax?
A) It is inversely proportional to the distance to the star. B) It is more accurate as the distances to objects becomes greater. C) It is only applicable to objects within the solar system. D) It is best measured over exactly one year intervals.

E) It was first observed by Galileo with his new
Correct Answer
A

Where on Earth can you observe all the stars in the sky over an entire year? A) Everyone on Earth can see the whole sky.
B) Tropic of Cancer
C) Equator
D) Arctic Circle
E) North Pole
Correct Answer(s):
C
From the Earth's equator, Polaris appears to lie on the northern horizon. A) True
B) False

true
A light year is the time for light to cross the Earth's orbit. A) True
B) False
Correct Answer(s):
False
The distances to bodies in the solar system are a few light minutes to light hours. A) True
B) False
Correct Answer(s):
True
About how many stars are visible on a clear, dark night with the naked eye alone? A) tens of thousands
B) a few dozen
C) millions and millions
D) a few hundred
E) a few thousand
Correct Answer(s):
E

9.

How long is the precession cycle?
A) 365.24 days
B) 18 years, 11.3 days
C) 26,000 years
D) 29.5 days
E) 1 day

Points Earned:

1.0/1.0

Correct Answer(s):

C

10.

The study of the universe is:
A) astronomy.
B) astrology.
C) cosmetology.
D) cosmology.
E) meteorology.

Points Earned:

1.0/1.0

Correct Answer(s):

A

11.

Only at the equator are all the stars visible over the course of the year. A) True
B) False

Points Earned:

1.0/1.0

Correct Answer(s):

True

12.

On a dark, clear night, the naked eye can see a few hundred stars. A) True
B) False

Points Earned:

1.0/1.0

Correct Answer(s):

False

13.

The distances within the solar system are best measured in:
A) Light days
B) km
C) astronomical units.
D) Light months
E) Mm

Points Earned:

1.0/1.0

Correct Answer(s):

C

14.

A billion is expressed in scientific notation as:
A) 109
B) 107
C) 103
D) 105
E) 102

Points Earned:

1.0/1.0

Correct Answer(s):

A
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