Sunday, October 4, 2009

Physical Science Review

For the test Friday be sure to review:
  • your packet on Topographic Maps.
  • diagrams of solar and lunar eclipses
  • how to calculate speed
  • scientific notation
  • factor-label conversions
  • metric relationships
  • Newton's Laws of Motion
  • difference between mass and weight
  • rotation- spinning on axis, causes night and day
  • revolution- orbit around the Sun
  • cause of the seasons- tilt of the Earth on its axis
Famous astronomers:
  • Ptolemy- proposed the geocentric model of the universe
  • Copernicus- given credit for the heliocentric model of the solar system
  • Galileo- inventor of telescope
  • Kepler- discover elliptical shape of planetary orbits.
  • Newton- discovered forces that keep planets in orbits
Moon Info
  • period of rotation and revolution are the same- 27 1/3 days
  • moon has no atmosphere therefore, no weathering, craters are present
  • age of moon is the same age as the Earth
  • waxing- new to full moon
  • waning- full to new moon
  • takes the moon about 4 weeks to go through a full cycle

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