Chapter Objectives:

• Explain how the speed of a satellite in circular orbit around Earth is related to the distance an object falls in the fist second due to gravity.
• Explain why the force of gravity does not cause a change in the speed of a satellite in circular orbit.
• Describe how the speed of a satellite changes in different portions of an elliptical orbit.
• Apply the energy conservation law to describe changes in the PE and KE of a satellite in different portions of an elliptical orbit.
• Determine the vertical speed required to ensure a projectile can "escape" Earth.
  

Chapter Terms:

• projectile
• parabola
• satellite
• ellipse
• escape speed

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Chapter Outline Framework:

• Projectile Motion
  • Projectiles Lanched Horizontally
  • Upwardly Launched Projectiles
• Fast-Moving Projectiles -- Satellites
• Circular Satellite Orbits
• Elliptical Orbits
• World Monitoring by Satellite
• Kepler's Laws of PlanetaryMotion
• Energy Conservation and Satellite Motion
• Escape Speed

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