Astronomy set 1

Card Set Information

Author:
dwrght16
ID:
296668
Filename:
Astronomy set 1
Updated:
2015-02-23 21:46:36
Tags:
Astronomy set
Folders:
Astro
Description:
exam 1
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user dwrght16 on FreezingBlue Flashcards. What would you like to do?


  1. If our year were twice as long (that is, if Earth took twice as many
    days to complete each orbit around the Sun), but Earth's rotation period and
    axis tilt were unchanged, then
    • the four seasons would each be
    • twice as long as they are now
  2. It's 6AM and the Moon is at its highest point
    in your sky (crossing the meridian). What is the Moon's phase?
    third quarter
  3. A typical galaxy is a ________.
    • collection of a few hundred
    • million to a trillion or more stars, bound together by gravity
  4. In Copernicus' heliocentric model, the
    ancient mystery of the planets is explained by retrograde motion which
    is...
    • only apparent as the Earth passes
    • other planets in its orbit around the Sun.
  5. Lunar eclipses can occur only during a
    ________.
    full moon
  6. If we have a new moon today, when we will have the next full moon?
    In about 2 weeks
  7. Check ALL that are true of a scientific
    theory...
    • 1. A scientific theory would have
    • been called a Law in Newton's time.

    • 2. A scientific theory has passed all
    • crucial tests of its validity.

    • 3. A scientific theory might still be
    • proven wrong.
  8. Which of the following is not true about a
    scientific theory?
    • 1. A theory must explain a wide range
    • of observations or experiments. 

    • 2. Even the strongest theories can
    • never be proved true beyond all doubt. 

    • 3. A theory is essentially an
    • educated guess.


What would you like to do?

Home > Flashcards > Print Preview