One of the predictions of Kepler's laws of planetary motion is ...

[burchfield96]

One of the predictions of Kepler's laws of planetary
  motion is that
  a) the planets move in circular orbits.
  b) for a non-circular orbit, the closer a planet is to the Sun the faster it travels.
  c) planets nearer the Sun have the longest orbital periods.
  d) all planets move in elliptical orbits around Earth.
  <-- if ppt--><--endif-->

Question 2

A ball falls to the ground from height h and bounces to height h'. Momentum is conserved in the ball-earth system
 a. no matter what height h' it reaches.
  b. only if h' < h.
  c. only if h' = h.
  d. only if h' > h.
  e. only if h'  h.

[momolu]

Answer to Question 1

b

Answer to Question 2

a

[burchfield96]

TYSM

[flexer1n1]

Gracias!