SCIENCE 907 LIFEPAC TEST UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

SCIENCE 907 LIFEPAC TEST UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. The Earth's moon is actually a __________________________.
Answer:
satellite

Question:
2. Two planets that are closer to the Sun than Earth are ____________________________ and
_________________________________________.
Answer:
Venus Mercury

Question:
3. The number 1 x 10^6 in scientific notation is equal to _________________ expanded.
Answer:
1 million (1,000,000)

Question:
4. When we employ the power of base 10 to write very large or very small numbers, we are using
_________________________________.
Answer:
scientific notation

Question:
5. The closest star to Earth not counting the Sun is called ____________________________.
Answer:
Alpha-Centauri

Question:
6. The planet discovered between Uranus and dwarf planet Pluto is ________________
Answer:
Neptune

Question:
7. In increasing order of the mean distance from the Sun, the major planets are:
Answer:
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

Question:
8. The distance of 93,000,000 miles is called an ________________________________ .
Answer:
Astronomical Unit

, Question:
9. The technique by which astronomers measure the distance to the stars is known as
___________________________________.
Answer:
parallax

Question:
10. A light-year measures _____________________ miles.
Answer:
6 trillion.

Question:
11. The star which has an apparent magnitude of +0.8 is ______________________.
Answer:
Betelgeuse

Question:
12. The unaided eye can perceive stars of the _______________________ magnitude.
Answer:
sixth

Question:
13. A telescope popular with amateur astronomers because of its ease of maintenance is a
______________________________ telescope.
Answer:
refracting

Question:
14. The color with the shortest wavelength is _______________________.
Answer:
blue

Question:
15. An optical telescope used to pick up the faintest visible stars is known as a
___________________________________ telescope.
Answer:
reflecting

Question:
16. The magnifying power of a telescope is computed by dividing the focal length of its objective by
_________________________________________________.
Answer:
the focal length of its eyepiece

Question:
17. A method employed by early telescope makers to compensate for chromatic aberration was to
________________________________.