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Moving in a circle LOsWhat provides thecentripetal force ineach of thesesituations? The Moon in orbit around Cornering on a perfectly the Earth. banked surface. Protons moving around the LHC. Cornering on a horizontal surface.Circular motion
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Lesson focus • Identifying the origins of centripetal force Learning objectives At the end of the lesson you will be able to: • use the equation for centripetal acceleration a = v2/r ; • use the equation for centripetal force F = ma = mv2/r ; • identify and quantify centripetal force in a variety of situations.Circular motion
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Learning outcomes All of you should be able to • quantify centripetal forces for simple situations in which objects move in horizontal circles. Most of you will be able to • describe the variation of centripetal force on the surface of a spinning sphere. Some of you may be able to • describe the origin and variation of centripetal forces for motion in vertical circles.Circular motion
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Conical pendulum LOs To do Explain the motion of the conical pendulum Things to think about: • What forces act on the pendulum? • What is the vertical motion of the pendulum bob? • Can you write an equation to describe the vertical forces? • What provides the centripetal force?Circular motion
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Conical pendulum LOs T Questions 1. Resolve T into horizontal and vertical components (TH and TV respectively). Label TH and TV in terms of T and . 2. What provides the centripetal force here?Circular motion LO 2: use the equation for centripetal force
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2824 Jan., 2009 Conical pendulum LOsMSCircular motion LO 2: use the equation for centripetal force
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2824 Jan., 2009 Conical pendulum LOs MSCircular motion LO 2: use the equation for centripetal force
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2824 Jan., 2008 Conical pendulum LOs MSCircular motion LO 2: use the equation for centripetal force
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2824 Jan., 2008 Conical pendulum LOs MSCircular motion LO 2: use the equation for centripetal force
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2824 Jan., 2008 Conical pendulum LOs MSCircular motion LO 2: use the equation for centripetal force
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Conical pendulum LOs 2824 Jan., 2008 MSCircular motion LO 2: use the equation for centripetal force
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2824 Jan., 2008 Conical pendulum LOs MSCircular motion LO 2: use the equation for centripetal force
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