PH220B_Lab_Project_Answer_Sheet (2).docWork & Power
Lab 5 (See Chapter 6) involves you walking up a flight of
stairs and recording your time via a stopwatch or chronograph.  You will
be asked to make measurements and calculations for the total time to
work the flight of stairs (at least 7 steps) and the vertical height of
the stairs from the bottom to the top.  Fill in the answers to the
blanks in the Lab answer Sheet at the end of this lab.  Send in this Lab
Answer sheet at the end of each week when you have finished the labs(s)
for the week. Please put them in the appropriate dropbox. These can be
sent via USPS (postal) or scanned and sent as .pdf or picture files
(e.g., .tif, .gif. etc.) or by any other method of your choice as long
as the Answer Sheets are legible and translatable by Grantham
University.  The lab details follow:
Purpose:  Determine your work and power as you climb a flight of stairs.
Materials:  Yardstick, a stopwatch or digital/analog watch, bathroom scale, calculator, and you, the climber
Estimate your mass in kg (Hint: 1 kg (mass) = 2.2 pounds (weight)).You should approach the bottom step of the stairs with a steady speed.You are to start the time as you reach the first stair and stop the clock when you reach the topObservations and Data:
Calculate the work and power for you to climb the flight of stairsWork (you) = _____; power (you) = ________Calculate your power in kilowatts: (P(kW) = _____.Application:
Your local electric company supplies you with 1 kW of power for 1
hour for 8 cents.  Assume that you could climb these stairs
continuously for 1 hour.  How much money would this climb be worth? 
$_________.Transfer all answers to the Lab 4 Answer sheet.

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