7BOBO-dHHHHHH-H-l-,D -8 -Zl`,xHH(FG(HH(d'@--l@/FA ST*--BN*7h9 *R5-tF-9v (- !(}DSETn/D +?---xy-p,ny-hDX./QRtu j 3 < = } v         < T       B I           G K  = G J V r      4  <  A  I  n  {        #  $  2  :  B  X  `  h  s  v  |         -|-- DATE_________________ NAME OF GROUP MEMBERS __________________________ __________________________ __________________________ UNIT 2: ESTIMATING ANSWERS LABORATORY ACTIVITY 1 ESTIMATING DISTANCES GROUP DATA SHEET The members of this team should use the data on this sheet to complete their own lab reports. The secretary should turn this sheet in when all team members have the information. In this activity, you use two methods of estimating distances. You determine (1) your average step length and (2) the average speed that you walk. You then use these two measured quantities to estimate the length of a hall and the outside perimeter of your building. Procedure a. Measure and mark off a 100-foot length in a hallway or on a nearby sidewalk. Begin at one end of the marked-off section and step off the distance. Walk with steps that are comfortable and normal. Do not use unusually long or short steps. Count the number of steps needed to cover the 100-foot distance. Record the number of steps needed to travel the 100-foot distance on a data sheet. Repeat this procedure two more times. You may get a slightly different number for each of the three tries. If so, add the three numbers and divide by three. This is your average number of steps. Now divide 100 feet by the average number of steps. Round this number to the nearest tenth of a foot. This is your average step length. Record this on your data sheet. *** Try # 1:_____________steps NOTE: Avg. means average *** Try # 2:_____________steps *** Try # 3:_____________steps *** Avg. number or steps = Try # 1 + Try # 2 + Try # 3 = ______ 3 *** Avg. step length = 100 ft/average # steps = ___________ b. Using the same length of 100 feet, find the time (in seconds) required for you to walk the 100-foot distance. Walk at a normal, comfortable pace; not unusually fast or slow. Repeat this procedure two more times and find the average time required to travel the 100-foot distance. Divide 100 feet by the average time required to travel the 100-foot distance. Round this number to the nearest tenth of a foot per second. This is your average walking speed in feet per second. Multiply your average walking speed in ft/sec by 60 sec/min to get your average walking speed in ft/min. Record the value on your data sheet. *** Time #1:________seconds *** Time #2:________seconds *** Time #3:________seconds *** Avg. time =Time #1 + Time #2 + Time #3 = _________sec 3 *** Avg. feet per second = 100 ft = _______ ft/sec Avg. time (sec.) *** Avg. feet per minute = ____ft/sec x 60 sec/min. = _____ft/min DSET|(H->"9 *6*>"9DSET(H-9y>9z6*=9DSETRE@E--\--   F-FOn this team paper, you only have to complete the sections marked ***