Download 1) What is the significance of the Tropic of Cancer

1) What is the significance of the Tropic of Cancer?
A) The Sun is directly over it on the Summer Solstice
B) It defines the line of 0 longitude
C) It defines the line of 0 latitude
D) The Full Moon is always directly over it
2) Somebody tells you that he has used a 1-meter reflecting telescope. What property of
the telescope is he referring to when he says “1 meter”?
A) The length of the telescope
B) The size of the focusing lens
C) The size of the primary mirror
D) The size of the secondary mirror
3) The solar nebula was 98% hydrogen and helium. Why aren’t the planets 98%
hydrogen and helium?
A) The Sun’s magnetic fields prevented hydrogen and helium from forming
planetesimals
B) The hydrogen and helium evaporated
C) The hydrogen and helium turned into heavier elements via nuclear fusion
D) Hydrogen and helium don’t condense under the conditions of the solar nebula
4) What is the primary reason why would you build a telescope on the dark side of the
moon?
A)
B)
C)
D)
Its cheaper to build it there
The gravity on the moon is not as strong, so the mirrors won’t warp as much
There is almost no atmosphere to look through
Its one of the few places in the solar system where you can detect radio waves
5) What was NOT an important contribution the Tycho Brahe made to science?
A) He made a great deal of careful observations of the movement of the planets
B) He observed a change in the heavens: a supernova
C) He made substantial improvements to Copernicus’s model of the solar system by
realizing that planets could travel in elliptical orbits
D) None of the above: Brahe did ALL of these things
Answers: A, C, D, C, C