Learning Activities 2.1 – 2.4: Marshmallow Measurements, Pressure Calculation, Components of the Rough Vacuum Trainer System, and Gas Flow Paths

This 7-page learning activity is from the Introduction to Vacuum Technology Student and Instructor Laboratory Manuals that accompany the Introduction to Vacuum Technology E-Book published by Erie Community College. The activity has students:

• Measure the dimensions of a cylindrically-shaped object (marshmallow) to calculate force and pressure of the object when it comes in contact with a flat surface.  
• Calculate pressures exerted by the marshmallow on the table top before expanding the marshmallow under vacuum and after compressing it when the system is vented.  
• Identify system components of the rough vacuum equipment trainer system and gas flow paths.

The activity includes a summary, learning objectives, a pre-lab assignment, theoretical background, a list of equipment and materials needed, and the activity procedure. The E-book, laboratory manuals, other learning activities, and related videos are available to view separately.