Laboratory Report 4
Group 9
Experiment 4: Work, Power, and Energy
Laboratory Report
Gerome Simeon, Michael Tiu, Mary Grace Anne Trinidad, Darrel Aaron Udasco
Department of Math and Physics
College of Science, UST
España, Manila, Philippines
Abstract
The Experiment entitled “Work, Power and Energy” is about relationship between work and power and the concept of energy. Activity 1 is about power and its relationship with work, the computed power outputs of each member of the group for going up are 118W, 205W, 178W, 222W; for going down, the computed power outputs are -150W, -232W, -195W, -303W.
I. Introduction Energy is one of the most important concepts in the world of science. In everyday use energy is associated with the fuel needed for transportation and heating, with electricity for lights and appliances, and with the foods we consume (Serway & Vuille, 2012). In this experiment the focus is mainly on mechanical energy, which is the sum of kinetic energy, the energy associated with motion, and potential energy, the energy associated with relative position. The sum of the kinetic energy and the gravitational potential energy remains constant at all times and hence is a conserved quantity (Serway & Vuille, 2012). In physics, work is done only if an object is moved through some displacement while a force is applied to it. If either the force or displacement is doubled, the work is doubled. Double them both, and the work is quadrupled. Doing work involves applying a force to an object while moving it a given distance.[1] In the experiment, work is demonstrated by a person going up and down a staircase. Work is positive when the applied force is in the same direction as the displacement, otherwise it is negative. Power, the rate at which energy is transferred, is important in the design and use of practical devices, such as electrical appliances and engines of all kinds. The concept of power, however, is essential whenever a transfer of any kind of
Experiment 4: Work, Power, and Energy
Laboratory Report
Gerome Simeon, Michael Tiu, Mary Grace Anne Trinidad, Darrel Aaron Udasco
Department of Math and Physics
College of Science, UST
España, Manila, Philippines
Abstract
The Experiment entitled “Work, Power and Energy” is about relationship between work and power and the concept of energy. Activity 1 is about power and its relationship with work, the computed power outputs of each member of the group for going up are 118W, 205W, 178W, 222W; for going down, the computed power outputs are -150W, -232W, -195W, -303W.
I. Introduction Energy is one of the most important concepts in the world of science. In everyday use energy is associated with the fuel needed for transportation and heating, with electricity for lights and appliances, and with the foods we consume (Serway & Vuille, 2012). In this experiment the focus is mainly on mechanical energy, which is the sum of kinetic energy, the energy associated with motion, and potential energy, the energy associated with relative position. The sum of the kinetic energy and the gravitational potential energy remains constant at all times and hence is a conserved quantity (Serway & Vuille, 2012). In physics, work is done only if an object is moved through some displacement while a force is applied to it. If either the force or displacement is doubled, the work is doubled. Double them both, and the work is quadrupled. Doing work involves applying a force to an object while moving it a given distance.[1] In the experiment, work is demonstrated by a person going up and down a staircase. Work is positive when the applied force is in the same direction as the displacement, otherwise it is negative. Power, the rate at which energy is transferred, is important in the design and use of practical devices, such as electrical appliances and engines of all kinds. The concept of power, however, is essential whenever a transfer of any kind of
Bibliography: [1]Serway, R., & Vuille, C. (2012). College Physics. Boston: Cengage Learning.