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| 主题: Adidas Jeremy Scott Teddy Bear 周四 十一月 08, 2012 3:46 am | |
| The doc document may at the WAP end of browsing experience poor.Suggest that you first select the TXT, or download the source files to this machine view.Section second amplitude, period and frequency of teaching objectives: 1 Adidas Jeremy Scott Panda Bear what is the amplitude, period and frequency 2 understand the period and frequency and the relationship between the 3 know what is the inherent vibration period and natural frequency teaching emphasis: 1 simple harmonic motion amplitude, period and frequency of the concept. 2 off in amplitude, http://www.jeremyscottnew.com/ period and frequency of actual application. Teaching difficulties: 1 amplitude and displacement. The relationship and difference between the 2 period and frequency. The relationship and difference between teaching method: 1 through the analysis of analogy was introduced to describe the motion of three physical quantities: the amplitude, period and frequency. 2 using CAI class to make the students understand and displacement amplitude, period and frequency. The relationship and difference between 3 through the demonstration, explanation, practice, deepen understanding of the concept of three. 4 through the experimental research, exploration of spring vibrator inherent cycle determinants. Teaching tools: CAI courseware, stiffness coefficient of different spring, stopwatch, Tiejia Taiwan, quality of different ball. Teaching process, inducts the new class 1 lecture: the front we learned linear motion, we know: for uniform linear motion, the force is zero, describing the motion displacement, when the physical quantityAnd speed, for even Adidas Jeremy Scott Teddy Bear speed change linear motion, force force is constant, describe its physical quantity with time, velocity, displacement and acceleration, and the class we studied the force for the restoring force of the simple harmonic motion, then Jeremy Scott Adidas the description of simple harmonic motion which need physical quantities into our 2 analogy? Know: simple harmonic motion is a reciprocating of the sport, and we learned the uniform circular motion is a reciprocating motion of the simple harmonic motion, so we also need to like the uniform circular motion as by introducing the cycle, frequency and other physical quantities, this class we will learn to describe simple harmonic motion of several physical quantities (of writing on the blackboard: amplitude, period and frequency) two, new teaching (a) amplitude of 1 on an iron stand hanging on a vertical spring vibrator, respectively, with different size force of the spring oscillator from the equilibrium position, different distance. 2 students were observed in two cases, vibration of spring oscillator with what different. 3 students representing a: two cases, spring vibrator in the range of different sizes; the vibration of the vibrator was different. | |
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