012–07190B
Magdeburg Plates
15
Figure TN_1
Sample data for Activity 3
Activity 3
Страница 1: ...scientific Instruction Manual and Experiment Guide for the PASCO scientific Model SE 9717 012 07190B MAGDEBURG PLATES Includes Teacher s Notes and Typical Experiment Results 5 10 15 20 25 30 35 40 45...
Страница 2: ...s 012 07190B The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance servicing instructions in the literature accompan...
Страница 3: ...total force on the plates due to atmospheric pressure 7 Activity 2 Experimentally determining the force holding the plates together 9 Activity 3 Measuring the vacuum and observing its rate of decay u...
Страница 4: ...nt for return shipment will not be covered by the warranty Shipping costs for returning the equipment after repair will be paid by PASCO scientific Copyright Warranty and Equipment Return Please Feel...
Страница 5: ...lding the plates together The syringe and one way check valve system constitute an inexpensive vacuum pump An extra connector is provided to permit the plates to be connected to a PASCO Pressure Senso...
Страница 6: ...ce of atmospheric pressure against the outside of the plate equals the force pushing from the inside b When a vacuum has beencreatedintheinterior chamber theforceholding theplatestogetherisequal to th...
Страница 7: ...e 2 Connecting part E to part A 2 Connect part F to part E Figure 3 3 Connect the syringe to the T of part F 4 Put O ring on part A Use either one of the O rings but not both 5 Place part B plate on t...
Страница 8: ...E maintains the vacuum Figure 5 3 Grasp both handles and pull individual or tug of war Operation without Science Workshop Figure 5 Magdeburg Plates ready for experimentation Figure 4 Connecting a Pre...
Страница 9: ...35 40 45 50 55 60 cc Figure 6 Magdeburg Plates ready for experimentation and monitoring of interior chamber pressure Pressure Sensor H E to ScienceWorkshop Interface Note Take care to avoid jerking th...
Страница 10: ...intolerant to petroleum based substances Maintenance Generally Please teach and expect safe behavior in your classroom and lab Safety considerations call for supervision of students at all times use o...
Страница 11: ...to determine the theoretical force that holds the Magdeburg Plates together Procedure 1 Determine the diameter of the surface enclosed by the O ring by measuring the outer and inner diameters of the...
Страница 12: ...er station should request station pressure not corrected to sea level 101kPa is a typical value at sea level 5 If necessary convert the atmospheric pressure readings to kPa refer to Physics reference...
Страница 13: ...rt with a slow and steadily increasing force while the third person notes the highest value 6 Calculate the force required to break the plates Total weight person s weight and the weight of the Magdeb...
Страница 14: ...he plates to sit undisturbed for a few minutes 7 Every minute or so try to break the plates apart 8 Note the pressure at which you were successful at breaking apart the plates and calculate the force...
Страница 15: ...ormally we make a liquid boil by heating it to increase the kinetic energy of the molecules However in this experiment we will make the liquid boil by adjusting the air pressure rather than the temper...
Страница 16: ...fway with hot coffee or very hot tap water 3 Measure the temperature of the liquid 4 Start recording data if you are monitoring the pressure and pull a vacuum with the syringe Watch the liquid careful...
Страница 17: ...ber is almost tight but not stretched Tie off the neck 3 Pull a vacuum and notice the size of the balloon Note You can also use the bubble wrap included in the Accessories kit in this experiment Inves...
Страница 18: ...2 and cm is meters x 10 2 Net Force 96 x 103 N m2 3 14 9 0 m x 10 2 2 2 Net Force 610 N approximately 137 lb or the weight of a 62 kg object 1 lb is approximately equal to 4 45 N 1 kg is approximately...
Страница 19: ...012 07190B Magdeburg Plates 15 FigureTN_1 Sample data for Activity 3 Activity 3...
Страница 20: ...will decrease after boiling Boiling is endothermic FigureTN_2 Sample data for Activity 4 Activity 5 The balloon will start expanding visibly when the pressure reaches about 60 kPa and will continue t...
Страница 21: ...ww pasco com Contacting Technical Support Before you call the PASCO Technical Support staff it would be helpful to prepare the following information If your problem is with the PASCO apparatus note Ti...
