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									 A computer based physics tutorial
     for simultaneous use at the
 university and at secondary schools



                 by J.-U. Fischbach and L. Paul
                    Department of Physics

                Bergische Universität Wuppertal
                            Germany



1st European Physics Education Conference Bad Honnef   4. – 7. July 2005
                     Fundamental Physics course

It comprises the fields:           Mechanics
                                   Thermodynamics
                                   Electricity
                                   magnetism
                                   waves and optics
                                   basics of the structure of matter

•    Lectures (8 credits)

•    exercises (4 credits)

•    Labwork (8 credits)

•    Computer Based Tutorial for preparing the Labwork



    1st European Physics Education Conference Bad Honnef   4. – 7. July 2005
                      Multimedia Elements


Electronic book is developed with Toolbook (Authorware program Asymetrix)

•   Computer simulation (Toolbook, Mathcad)

•   Computer based real time experiments (ULI System from Vernier)

•   Curve fitting to the data (with Mathcad and Logger Pro)

•   Video experiments (Logger Pro with Quick time player)

•   Multiple choice questions with feed back (Mazur: Peer Instruction)




    1st European Physics Education Conference Bad Honnef   4. – 7. July 2005
                       topics of the tutorial

     •   Error treatment and regression analysis

     •   Linear motion

     •   Rotational motion

     •   Simple mechanical oscillations

     •   Simple electrical oscillations

     •   (Fourier analysis)

     •   Coupled oscillations

     •   Propagation of waves

     •   Superposition of waves

     •   (Diffraction phenomena)


1st European Physics Education Conference Bad Honnef   4. – 7. July 2005
               Experiment: normal distribution




             y                                   y




                               y
                               x

1st European Physics Education Conference Bad Honnef   4. – 7. July 2005
                           Experiment: Poisson distribution




       Geiger Müller Tube                            cosmic rays



Mittelwert der Zählrate:         Nm  1.327 103


theoretical standard deviation    Nm  36.428

measured standard Deviation       N  32.507



                                                   Radioactive source
1st European Physics Education Conference Bad Honnef           4. – 7. July 2005
            Video analysis of a rigid body in flight

                                        y
            P




        Videoclip                               Motion of P        x




 Motion of the center of mass         Rotation of P around center of mass

1st European Physics Education Conference Bad Honnef   4. – 7. July 2005
        Experiment: oscillation of 2 coupled pendula




                     0.1




                    0.05



           xi

           f zj
                       0




                    0.05




                     0.1
                           0   5          10             15        20        25

                                               ti  zj
       1. Eigenfrequenz [Hz]   f1    0.573              Phase[Grad]:  1  11.509


       2. Eigenfrequenz [Hz]   f2    0.638              Phase[Grad]:  2  229.537

    Schwingungsfrequenz [Hz] fSc hw  0.605       Schwebungsfrequenz [Hz] fmod  0.032


1st European Physics Education Conference Bad Honnef                                  4. – 7. July 2005
               Experiment: Beats of two tuning forks




                                                                                        t



        1. Eigenfrequenz [Hz]   f1    440.329   Phase[Grad]:  1  19.095


        2. Eigenfrequenz [Hz]   f2    425.779   Phase[Grad]:  2  280.385

     Schwingungsfrequenz [Hz] fSc hw  433.054 Schwebungsfrequenz [Hz] fmod  7.275




1st European Physics Education Conference Bad Honnef                          4. – 7. July 2005
                Experiment: Interference and Diffraction




Interference pattern of 2 circular waves          Interference pattern of 2 circular waves




                    b  0.238                                     d  0.242       b  0.067




                                       Huygens Principle

diffraction pattern of a single slit                       diffraction pattern of a double slit

    1st European Physics Education Conference Bad Honnef              4. – 7. July 2005
                                Experience

    The status of the programs and their interplay is not yet self
     supporting.

    It is difficult to find experienced supervisors.

    The computers and the software must be maintained steadily.

    Students have to learn the systematic use of the computer as
     an instrument and not as a toy.

    The student’s behaviour is very diverse.


Evaluation by students:           Students in physics:          very positive


                                   Students in chemistry: splitted
    1st European Physics Education Conference Bad Honnef   4. – 7. July 2005

								
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