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Gravity - Coggle Diagram

- - - - Earth's period of revolution is one year.
    - - Objects also spin, or rotate, as they orbit the Sun.
      - Earth has a period of rotation of one day.
  - - - A planet's speed also changes as it orbits the Sun.
      - The closer the planet is to the Sun, the faster it moves. Which means that planets farther from the Sun have longer periods of revolution.
    - - A planet's orbit is an ellipse a stretched-out circle.
      - There are two special points or foci inside an ellipse that are equal distanced from the center of the ellipse. They determine the shape of an ellipse.
      - Planets move slower when they are farther from the Sun and faster when they are closer to the Sun.
      - The gravitational pull of the Sun always is toward the Sun.
      - The Sun's gravitational pull makes planets move in a straight line.
- - - - They occur during the full moon and new moon.
      - When the Sun's and the Moon's gravitational efforts combine and produce higher high tides and lower low tides.
    - - They occur during the first quarter moon and third quarter moon. A week after a spring tide.
      - The Sun, Earth, and Moon form a right angle. When this happens, the Sun's effect on tides reduced the Moon's effect.
      - High tides are lower and low tides are higher.