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Summary of Contents for Pasco Scientific SE-9717
- Page 1 Includes 012-07190B Instruction Manual and Teacher's Notes Experiment Guide for Typical Experiment Results the PASCO scientific Model SE-9717 MAGDEBURG PLATES © 1999 PASCO scientific...
- Page 2 Magdeburg Plates 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 accompanying the device.
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Page 3: Table Of Contents
012–07190B Magdeburg Plates Table of Contents Section Page Copyright, Warranty, and Equipment Return ................ii Introduction ..........................1 Equipment ..........................1 Theory ............................2 Basic Setup ..........................3 Setup with ScienceWorkshop and a Pressure Sensor ............... 4 Operation ........................... 4 Operation with ScienceWorkshop .................... -
Page 4: Copyright, Warranty, And Equipment Return
The PASCO scientific 012-07190A Magdeburg Should the product have to be returned to PASCO Plates manual is copyrighted and all rights scientific for any reason, notify PASCO scientific by reserved. However, permission is granted to non- letter, phone, or fax BEFORE returning the product. -
Page 5: Introduction
012–07190B Magdeburg Plates Introduction The PASCO SE-9717 Magdeburg Plates can be used to illustrate the concept of atmospheric pressure. Their flat plate design permits the calculation of forces using simple algebraic mathematics. In contrast, the traditional Magdeburg hemispheres required calculus for the calculation of the forces involved. -
Page 6: Theory
Magdeburg Plates 012–07190B Additional Suggested: • Magdeburg Plate Accessories (SE-9718) • Pressure Sensor (CI-6532 or CI-6533) [Do not use with CI-6534 Low Pressure or CI-6559 Humidity Sensor] • ScienceWorkshop Interface (300, 500, 700, or 750) • computer and data acquisition software (ScienceWorkshop or DataStudio) Theory Before the vacuum is pulled, the pressure of the air inside the plates equals the... -
Page 7: Basic Setup
012–07190B Magdeburg Plates Basic 1. Connect the hose connector on part E Setup to the hose connector on part A (Figure 2). Figure 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. -
Page 8: Setup With Scienceworkshop And A Pressure Sensor
Magdeburg Plates 012–07190B 1. Connect part H to the hose connector on part A (Figure 4). Setup with 2. Connect part E to part H. Science- 3. Connect part F to part E. Workshop Pressure Sensor 4. Connect the syringe and a to the T of part F. -
Page 9: Operation With Scienceworkshop
012–07190B Magdeburg Plates Operation Operation with ScienceWorkshop to obtain quantitative information about the force required to offset atmospheric pressure, and to demonstrate the correlation with between the breaking apart of the plates and the rise in interior pressure. Science 1. Set up to monitor the pressure while pulling the vacuum. Workshop 2. -
Page 10: Cautions (Safety)
Magdeburg Plates 012–07190B Generally... Safety Please teach and expect safe behavior in your classroom and lab. Safety considerations call for supervision of students at all times, use of safety Considerations eyeware, no horseplay, no unauthorized experimentation, immediate (continued) reporting to the instructor of accidents or breakage, among others. More Specifically... -
Page 11: Activity 1: Determining The Total Force On The Plates Due To Atmospheric Pressure
012–07190B Magdeburg Plates Determining the total force on the plates is equal to the force of Activity 1 atmospheric pressure on the plates Introduction The total force on the plates is the total air pressure on the surface area defined by the O-ring. - Page 12 Magdeburg Plates 012–07190B Barometer Sensor, or a PASCO CI-6532 Absolute Pressure Sensor. Note: If you are not near sea level and you use a barometer or a media report of barometric pressure, be sure that the reading has not been “corrected to sea level”...
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Page 13: Activity 2: Experimentally Determining The Force Holding The Plates Together
012–07190B Magdeburg Plates Activity 2 Experimentally determining the force holding the plates together (small O-ring) 1. Assemble the plates using the small O-ring and pull a vacuum in the inter-plate space (Figure 2.1). 2. Have a light, strong student stand on a bathroom scale (Figure 2.2) holding one handle of the Magdeburg Plates. -
Page 14: Scienceworkshop
Magdeburg Plates 012–07190B Activity 3 Measuring the vacuum pulled and observe the rate of decay using ScienceWorkshop Introduction You can use a ScienceWorkshop Interface, computer, and Pressure Sensor to monitor the pressure in the chamber between the plates. Procedure 1. Assemble the Magdeburg plates so the chamber pressure can be monitored with a Pressure Sensor and ScienceWorkshop Computer Interface (Figure 3.1) 2. -
Page 15: Activity 4: Determining The Effect Of Air Pressure On Boiling Point Of Water
012–07190B Magdeburg Plates Activities with the Magdeburg Plate Accessories Activity 4 Determining the effect of air pressure on the boiling temperature of water Introduction: Boiling occurs when a liquid reaches a temperature at which the vapor pressure of the liquid equals the air pressure. The vapor pressure of the liquid is depen- dent on both the air pressure and the temperature of the liquid. - Page 16 Magdeburg Plates 012–07190B Optional Procedure: You can also include a connection to an Absolute Pressure Sensor to monitor the pressure inside the chamber as in Figure 4.2. Pressure Sensor to ScienceWorkshop Computer Interface Figure 4.2 Optional setup with ScienceWorkshop and a Pressure Sensor 2.
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Page 17: Activity 5 Investigating The Effect Of Air Pressure On The Size Of A Balloon
012–07190B Magdeburg Plates Activity 5 Investigating the effect of air pressure on the size of a balloon. Procedure: 1. Set up the Magdeburg Apparatus as described in Activity 4, replacing the cup of hot liquid a balloon. 2. Inflate the balloon slightly so balloon the rubber is almost tight but not stretched. -
Page 18: Teacher's Notes
Magdeburg Plates 012–07190B Teacher’s Activity 1 Sample data: Notes outside diameter of the large O-ring = 9.5 cm inside diameter of the large O-ring = 8.5 cm average of inside and outside diameter = 9.0 cm Net Force = (atmospheric pressure - pressure inside the chamber) * π * (9.0 cm/2) Net Force = (101 KPa - 5 KPa) * π... - Page 19 012–07190B Magdeburg Plates Activity 3 Figure TN_1 Sample data for Activity 3...
- Page 20 Magdeburg Plates 012–07190B Activity 4 Result: The coffee will boil when you have created at strong vacuum (about 20 pulls on the syringe plunger). The temperature of the coffee will decrease after boiling. Boiling is endothermic. Figure TN_2 Sample data for Activity 4 Activity 5 The balloon will start expanding visibly when the pressure reaches about 60 kPa and will continue to expand until the maximum vacuum has been...
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Page 21: Technical Support
012–07190B Magdeburg Plates Technical Support Feedback Contacting Technical Support If you have any comments about the product or Before you call the PASCO Technical Support staff, it manual, please let us know. If you have any would be helpful to prepare the following suggestions on alternate experiments or find a information: problem in the manual, please tell us.
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