<p> Work, Energy & Power Lab</p><p>W Background: W Fd P  Eg  mgh W =  t</p><p>Purpose: To develop an understanding of work, energy and power. To calculate personal power output capabilities.</p><p>Materials/Apparatus: Stopwatch or timing device Measuring tape Bathroom Scale or “Weighing Scale”</p><p>Procedure: 1. Obtain a measurement for the change in height between ground level and the second floor (where the physics lab is). (Trigonometry can be used to find this out.) 2. Obtain a measurement for personal mass. 3. Measure the amount of time it takes to walk up the stairs at a “normal” and constant speed. 4. Repeat step three for a slower pace. 5. Repeat step three for the fastest safe pace. 6. Enter the data in the table. 7. Answer the questions that follow.</p><p>Data: Personal Mass: ______Personal weight:______Staircase height: ______</p><p>Speed Eg Work Displacement Time Fapplied Power Slow Normal Fast Analysis:</p><p>1. Analyze the motion up the stairs in a brief paragraph. Think in terms of constant velocity, acceleration, and whether the motion is truly 1 dimensional. 2. What amount of work is done when moving in these other dimensions? Explain.</p><p>3. How much does the gravitational potential energy change by climbing the stairs?</p><p>4. Does the speed up the stairs affect the change in gravitational potential energy? Explain.</p><p>5. What affects the power output? How can a person maximize his/her power? Minimize his/her power?</p><p>Organize your work in a formal lab report.</p>