Horsepower Lab - Weebly
Name: _____________________________________ Period: ____ Date: ____ / ____ / ____Horsepower Activity3524250159385Purpose:Students will collect, record, and analyze data in a lab situation and solve problems related to work and power.Background Information:What is the formula for calculating work? What are the units for work?What is the formula for calculating power? What are the units for power?Conversion Factors:2.2 pounds = 1 kilogram100 centimeters = 1 meter745.7 watts = 1 horsepowerProcedure:Be sure to show Given, Formula, Set-up, & Solution for the calculation questions!! Be sure all of your data in the data tables contain the proper units!!Record your mass in pounds. If you are not sure, make your best estimate. Convert your mass in pounds to kilograms in the space provided using Factor Label. Record this data in the “Mass” box in Data Table #2.Convert your mass in kilograms to your weight in Newtons in the space provided. Record this data in the “Force” box in Data Table #2. (Hint: acceleration due to gravity is 9.8 m/s2.)Determine the distance you are going to move the force of your weight by measuring the height of the flight(s) of stairs that you will be going up. To do this, measure, in centimeters, and record the height of each step (as there may be differences in stair heights) in the space provided, and then total the heights up to determine the total flight(s) height.Next, convert the total flight height from centimeters to meters in the space provided. Use Factor Label. Record this data in the “Distance” box in Data Table #2.Calculate the work you will do by moving up the stairs in the space provided. Record this data in the Work box in Data Table #2Next, your partner will determine the time, to the nearest .01 seconds, it takes you to run as fast as you can up the flight(s) of stairs using the stopwatch provided and vice versa. Each of you must perform 3 trials. Record your own times in Data Table #1. After you have each completed 3 trials, add up the three trials and determine the average. Record the average time in the Average Time boxes in both Data Table #1 and #2.Data Table #1:Time Trial 1 (s)Time Trial 2 (s)Time Trial 3 (s)Total Time (s)Average Time (s)Calculate your power running up the stairs in the space provided. Record this data in Data Table #2.Calculate your horsepower in the space provided. Use Factor Label. Record this data in Data Table #2.Data Table #2: Be sure to include proper units!!MassForceDistance WorkAverage TimePowerHorsepowerFollow-Up Questions: Be sure to answer questions 2-5 in complete sentences!!Can you do the work of one horse? _____How can you “measure” work? In other words, what measurements do you need to make in order to calculate work?____________________________________________________________________________________________________________________________________________________________________________________Do you do more work when you run up the stairs quickly? _____ Why or why not?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________How can you “measure” power? In other words, what measurements do you need to make in order to calculate power?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Do you generate more power when you run up the stairs quickly? _____ Why or why not?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ................
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