What is the ecliptic?
A) the path the Sun appears to trace around the celestial sphere each year
B) the Sun's daily path from east to west in our sky
C) the path traced by the Moon's shadow on Earth during a solar eclipse
D) a half-circle extending from your horizon due north, through your zenith, to your horizon due south
A
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A "fuzzy" dark or light patch in the sky is called a:
A) nebula. B) cloud. C) galaxy. D) comet. E) dust lane.
Suppose we know the value of 
for a simple harmonic oscillator. What further information do we need to know to fix the amplitude A and the initial phase ? in the solution to the simple harmonic oscillator equation? (If more than one item is needed, feel free to indicate more than one answer.)
A. The oscillating object’s initial position B. The oscillating object’s initial velocity C. The object’s mass D. The oscillation’s period E. The spring’s spring constant F. We do not need additional information. G. The oscillating object’s initial(position+velocity)
In the geometric analogy, the coordinate time difference ?t between two events in space time corresponds to
A. The north–south separation between points on a plane. B. The distance between points on a plane. C. A certain path length between points on a plane. D. The separation between the events in space time. E. Something else (specify).
The Galileo mission put a spacecraft into orbit around Jupiter. Which statement about that spacecraft is true?
A) The spacecraft crashed into the moon Europa. B) The spacecraft's probe measured windspeeds in Jupiter's atmosphere. C) A saltwater ocean was discovered on Jupiter. D) Intense magnetic fields were discovered in the asteroid belt. E) A probe was released which soft landed on Io.