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Circular Motion and Gravitation

Use the links below to access specific internet content for Circular Moton and Gravitation. The internet content is available at the GBS Physics web site as well as from other external sites. (Please notify the instructor of any broken links. Thanks!)

  • A discussion of Newton's laws and kinematic concepts and their application to circular motion; a variety of informative graphics are provided and common misconceptions are addressed - start in Lesson 1a of Unit 6 at The Physics Classroom.
  • A introduction to the mathematics of circular motion with a few sample problems and discussion - check out Lesson 1e of Unit 6 at The Physics Classroom.
  • An illustration of how to use free-body diagrams and Newton's laws to solve complex circular motion problems; several examples (many of which are identical to the packet problems) with detailed discussion are given on four separate web pages - start in Lesson 2a of Unit 6 at The Physics Classroom.
  • A discussion of Newton's universal law of gravitation, including the apple and the moon argument - start in Lesson 3a of Unit 6 at The Physics Classroom.
  • An illustration of how an inverse square law can be used as a "guide to thinking" about how an alteration in one variable would effect a second variable - see the end of Lesson 3b and of Lesson 3c of Unit 6 at The Physics Classroom. (Be sure to look at the Check Your Understanding sections on these pages.)
  • A discussion of Kepler's laws and their description of planetary motion - check out Lesson 4a of Unit 6 at The Physics Classroom.
  • A discussion of satellite motion, including a discussion of motion characteristics, orbital speed, orbital period and energy conservation - start in Lesson 4b of Unit 6 at The Physics Classroom.
  • Online animation which illustrates the vector nature of the velocity and acceleration of an object in circular motion.
  • Online animation which illustrates the natural tendency of a passenger in a car to follow an inertial, straight-line path.
  • Online animation which illustrates the need for a centripetal force in order for an object to move in circular motion; animation resembles the whiteboard/tennis ball demo performed in class.
  • Online animation which illustrates and discusses the free-body diagram for an object moving through a roller coaster loop.
  • Online animation which illustrates and discusses why satellites can merely be though of as free-falling objects with so great a speed that they fall towards the Earth without ever reaching the Earth.
  • Online animation which illustrates Kepler's second law of motion - the law of equal areas.

 

 

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E-mail: Tom Henderson || Last update: 8/26/2005