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Name Human Horsepower. GOAL: To calculate human horsepower when climbing stairs. Materials Stop watch, meter stick, student, calculator , stairs Procedure Work in partners to collect data. Record your weight in pounds. Measure height of stairs. Record time to climb the stairs
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NameHuman Horsepower • GOAL: • To calculate human horsepower when climbing stairs. • Materials • Stop watch, meter stick, student, calculator, stairs • Procedure • Work in partners to collect data. • Record your weight in pounds. • Measure height of stairs. • Record time to climb the stairs • Calculate weight as force, work, power, and convert to horsepower
Data Collection for Human Horsepower Weight_______lbs. Height of stairs _3.04__m Time to climb stairs _______sec. Using this data, you will calculate mass, weight in newtons, work, power and horsepower (American).
Calculations for Human Horsepower • Convert your pounds to mass. We know that 1 pound = 0.45 kg. • Calculate your weight as a force. Use weight formula. Units will be NEWTONS. • Calculate the work to move your weight the height of the stairs. Use work formula. Units will be JOULES. • Calculate the power, or the work in a measured amount of seconds. Use power formula. Units will be WATTS. • Convert power to horsepower. We know that 1 horsepower = 746 Watts