Multiple Choice
The geometry of an ellipse is described by two numbers: the ____ which is half the longest diameter of the ellipse and the ____ which tells us the shape of the ellipse.
A) radius, eccentricity
B) radius, deferent
C) semi-major axis, deferent
D) semi-major axis, epicycle
E) semi-major axis, eccentricity
Correct Answer:
Verified
Correct Answer:
Verified
Q6: Once a theory has been tested thoroughly
Q7: _ orbit is one in which an
Q8: Compare the circular velocities of the satellites
Q9: Kepler's second law of planetary motion states
Q10: Retrograde motion is from (north, south, east,
Q12: Which of the following books of tabulated
Q13: Ancient astronomers thought the heavens were perfect
Q14: If a planet takes 140 years to
Q15: Ptolemy's model of the universe<br>A)was heliocentric.<br>B)included elliptical
Q16: The eccentricity of a planet's orbit describes<br>A)westward