The instrument is a modular structure, all parts is placed in special wooden case.
This set includes:Biaxial dynamometer, a pressure spring, torque wheel pulley.
The wooden case size: 650*420*105mm.
It is maily used for the following experiments: The rectilinear propagation of light, pinhole, light reverse, refraction, convex imaging etc.
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It is used to combined demonstrate more than twenty basic experiment of junior school mechanics.
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It is used with electric instruments now in many schools to meet student experiments related circuit in junior middle school electrics basically, and to achieve the goal to train practical ability of junior middle school students.
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It is used to do experiments: use of oscilloscope, determination of metal electrical resistivity, refitting ammeter into voltmeter, determination of electromotive force of battery and internal resistance of the battery, observing AC rectification and filtered waveform, installing simple radio and measurement of capacitance using capacitor discharge.
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