i. Module 4 Fluids and Thermodynamics ... - Workforce 3 One

7. Open the valve by turning the handle to line up with the tubing. What happens to theload of books?8. Summarize your observations: You lifted a heavy weight, overcoming a large force ofgravity, a short distance by using a (larger, smaller) ______ force over a (longer,shorter) _________ distance.9. Next you will make measurements to quantify these observations. Record yourmeasurements in the Table 1. Measure the distance the small piston moves as youmove it from a starting position at the largest graduation mark to the zero mark. Use aruler, not the graduations on the syringe. This is Distance in.10. Pull out the small piston to the largest graduation mark. Now measure the force requiredas you push in the piston. Use a force sensor if available. If not, use another method,such as holding the syringe vertical and piling on stackable lab weights. This result,expressed in Newtons is Force in . Record this measurement in Table 1.Table 1Syringe Force in Distance in Force out Distance out AMA IMA Work in Work out Efficiency6 ccForce in and Distance in are the force and distance involved in operating the small syringe.Force out is the weight of the stack of books, and Distance out is the distance they were liftedas a result of one stroke of the small piston.Calculating Work is described in Activity 4.See Mechanics Module:AMA (actual mechanical advantage),IMA (ideal mechanical advantage),Efficiency11. Open the valve to lower the load. Then close the valve again.Note the position of the large piston that supports the books.12. Pump the small piston for 5 strokes. Count the strokes, and use a ruler to measure thedistance the piston moved. Also note the volume of fluid that entered the syringe. Dividethe distance by the number of strokes to find the distance out for 1 stroke13. Repeat the above measurements for some or all of the other small syringes.14. Find the AMA, IMA, Work in , and Workout and record your results in Table 1.15. Is the efficiency different for different systems?Module 4 Student Guide Fluids & Thermodynamics Page 20