But now, even tall skyscrapers can be built in a few years. Materials stopwatchtimer, meter stick, stairs, 3 machines 3 humans procedure 1. Founded in 2002 by nobel laureate carl wieman, the phet interactive simulations project at the university of colorado boulder creates free interactive math and science simulations. Pdf on oct 31, 2018, samiaperwaiz khan and others published benefits of. Work and power lab millersburg area school district. This lab writeup is not to be copied, in whole or in part, unless a proper reference is made as to the source. It is the rate of work done or rate of energy transfer.
Doing work either transfers energy from one object to another or transforms it from one form to another. Laboratory manual and workbook in microbiology applications to patient care 7th edition josephine a. Work on an incline because of its weight, mg, the block experiences a force down the incline of magnitude mg sin 30 59. Count the number of steps that will be used during the lab.
Multiply that amount by the number of stairs in the flight to find the total height 3. Ke 490 joules the kinetic energy of the box at the point of impact with the floor is. Looking for maintenance work order form aka work order template. Force is expressed in newtons n and distance is expressed in meters m. Web to pdf convert any web pages to highquality pdf. Energy lab key southeast missouri state university. Machines transfer mechanical energy from one object to another.
Waterwheels are devices that generate power and do work. June 2002 overview this microbiology laboratory manual is designed especially for the nonmajors, health science. The equation for power, p, is the work done divided by time t, p work t eq. Web to pdf convert any web pages to highquality pdf files while retaining page layout, images, text and. Finding the total work done on the block is more complex. Work, energy and power the following information is provided to the student.
Both students will perform the experiment in the stairway that leads down into the gym locker rooms. It should make logical sense and include all of the following terms. The pre lab should include a discussion of the scienti. Mathematically, it is computed using the following equation. Your city wants to use hydropower instead of coal to make energy because they want to limit air pollution. This engineering curriculum meets next generation science standards ngss. In the second part you will figure out the work done during various activities and compute the power expended.
Work and power lab with answer key by buckos science corner. In this activity students learn how to use physics equations to calculate the amount of work their muscles do during an exercise. When we lift a book away from the center of dear old earth, we do work on that book. Physics 0302 potential energy and conservative forces. Work w is the energy transferred to or from an object by means of a force acting on the object. Heavy lifting it took the ancient egyptians more than 100 years to build the pyramids without machines like these. Ncert solutions for class 11 physics chapter 6 work, energy. This introduction will show you how heart rate can be measured through the use of a pulse transd. To calculate and compare the work done and power used of different students while ascending stairs.
Jan 17, 2016 use pdf download to do whatever you like with pdf files on the web and regain control. James watt was a british scientist who invented the steam engine. Energy, work, and power and the related units of measure. In physics, power is associated with energy and has a precise meaning. To find out how the power of his engine compared to that of a horse, watt measured how fast an average horse could do work. For instance, each time you do a pushup, you lift the weight of your body several centimeters, and the work that you do equals the force that you exert your weight times the distance that you lift yourself. We update the site very frequently with all types of templates and forms that you might need. To compare the work done by you and the power you generate as you climb one flight of stairs at different speeds. Physics 0303 nonconservative forces and conservation of energy. A woman carrying water from a well to her house is said to be working. To investigate the concepts of work and power through direct measurement of the distance and time associated with climbing stairs and lifting weights. The first step is to find the net force acting upon the block. Circle the letter of each sentence that is true about power. The terms work, energy and power are frequently used in everyday language.
Our page contains template options of work orders for maintenance, it services, auto repairs, and more. Learn how to quanitatively relate the new concepts of work and energy to concepts you are already familiar withforce and distance. May 24, 2018 if you want to skip the hassle of downloading each image, then converting it into pdf or excel or word format through tools, you can directly opt for our all in one collection of work order forms. In order for work to take place, a force must be exerted through a distance. But the amount of time in which you do work does affect your power the rate at which work is done. Be careful when working with spinning motors, and parts that can become hot. All chapter 6 work, energy and power exercises questions with solutions to help you to revise complete syllabus and boost your score more in examinations. In this lab you will examine three physical quantities. Use of power lab and lab tutor in undergraduate medical education laboratory teaching. Phys 101 most of us love the dear old earth, in fact were quite attracted to it. It involves some simple calculations and thought problems involving work, potential energy and power following a physical activity in lab by the students.
Types of energy notes, energy notesstudent template, potential vs kinetic energy poster, discrepant event. In this lab, students will use motion and force sensors to develop an understanding of the workenergy theorem that relates the work done on an object by a net force to the change in the objects kinetic energy. For information on how you can participate in an upcoming power lab, contact us at. Work power joule newton kgms2 joule second kg m2s2. To compare the total work on an object to the change in its kinetic energy as a. The work energy theorem says that the net work done by force acting on an object is the the net change in kinetic energy of the object. In ece 469, the voltages will usually be kept low to minimize hazards. You can increase power by doing a given amount of work in a shorter period of time. Power system is predominantly in steady state operation or in a state that could with su. Experiment 201 work, energy and power abstract for this experiment, we aim to determine the power of the fan cart. This work is licensed under a creative commons attributionnoncommercialnoderivatives 4.
In this lab, youll calculate your work and power for climbing a flight of stairs at different speeds. Alyssa grabinski physics i lab 1023 experiment 6 work and power introduction. A farmer clearing weeds in his field is said to be working hard. Power electronics laboratory manual introductory material v safety the power electronics laboratory deals with power levels much higher than those in most electronics settings. The zip file contains the following templates in excel format so that you can straightaway download it and start editing. It is strongly recommended that you use this document only to generate ideas, or as a reference to explain complex physics necessary for completion of your work. Each group of students should consist of two students. Dc power supply the dc power supply is used to generate either a constant voltage cv or a constant current cc.
Your weight is equal to the force required to walk up the stairs at constant speed. That attraction arises from the earths large mass, not the fact that it is spinning. Work equals force times the distance through which the force acts. Phet sims are based on extensive education research and engage students through an intuitive, gamelike environment where students learn through exploration and discovery. Work and power lab introduction does the amount of work that you do depend on how fast you do it. This is a walkthrough of the adinstruments powerlab system. Power and work lab power lab purpose to calculate and. There are only two relevant variables in one dimension. The concept of power is concerned with how rapidly energy is being transferred or transformed when work is done.
In a drought affected region she may be required to carry it over large. However, hinrik would output more power than valdis because hinrik does the work faster and power is a comparison of the amount of work done in a certain amount of time. Safety do not physically engage in this activity if you have an injury or a respiratory or cardiovascular condition. Energy skate park lab the simulation is available here and free to download or run off their site. View lab report work, power and energy lab samantha wolter. Energy transferred to the object is positive work, and energy transferred from the object is negative work. Fluid power is all about moving energy from one location to another.
The amount of work done depends on two things the amount of force exerted and the distance over which the force is applied. Stairclimbing power lab episcopal school of dallas. Mechanical work is defined as the magnitude of the applied force f multiplied by. In this laboratory, you will perform two experiments in which work is done and energy is transferred. The physics classroom serves students, teachers and classrooms by providing classroomready resources that utilize an easytounderstand language that makes learning interactive and multidimensional. Work and energy goals to apply the concept of work to each of the forces acting on an object pulled up an incline at constant speed. Power work time the watt a unit named after scottish inventor james watt. Energy transfer is the energy moving from the prime mover, or input source, to an actuator, an output device. Work, energy and power key concept energy is the ability to do work, and may be obtained in many forms. E201 lab report experiment 201 work energy and power. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time. The only special materials required are stairs, bleachers or risers.
Power is measured in joules per second js r o watts w and is worked out using the formula. Ppt work, energy, and power powerpoint presentation. Using one finger, push down on the free end of the ruler to lift the book. We welcome your comments on both the film and this guide. Work and power lab with answer key by buckos science. Student teams construct waterwheels using twoliter plastic bottles, dowel rods and index cards, and calculate the power created and work done by them. The teacher guides at the laboratory are intended to provide teachers information about each individual lab. P wt joulessecond 1 watt 1 js watts used to measure power of light bulbs and small appliances an electric bill is measured in kwhrs. Work and power lab purpose to calculate the power output of a machine. It is now your chance to pull it all together by writing a well written, thoughtful paragraph. Free pdf download of ncert solutions for class 11 physics chapter 6 work, energy and power solved by expert teachers as per ncert cbse textbook guidelines. To determine the energy burned during that exercise. Work is expressed in newtonmeters, or the simplification, joules j. Power is the rate that work is done, and when you exercise you do work.
View lab report e201 lab report from physics 11l at mapua institute of technology. Physiology teaching, especially laboratory exercises, in the undergraduate medical curriculum has evolved considerably due to the introduction of problembased learning, computerbased data recording systems and availability of simulated. What effect does varying the angle of incline have upon the force needed to pull a cart up a hill at a constant speed to. Stay connected to your students with prezi video, now in microsoft teams. Power, work and the waterwheel activity teachengineering. To determine the work and power required to walk and also to run up one floor of stairs. It is commonly used in physiology, pharmacology, biomedical engineering, sportsexercise studies and psychophysiology laboratories to record and analyse physiological signals. Lab 11 power of students, potential vs kinetic energy poster thursday. Printable templates lab education redefined with free. Lab 8 heat, solar input and earths available energy. If work is in joules j and time is in seconds s, power is expressed in joulessecond, or the simplification watt w.
This lab activity introduces the concepts of work and power to physical science students. Written by teachers for teachers and students, the physics classroom provides a wealth of resources that meets the varied needs of both students and teachers. Carefully measure the height of one of those steps in. In a power system there are always small load changes, switching actions, and other transients occurring so that in a strict mathematical sense most of the variables are varying with the time.
Human power lab in this lab we are determining the power output of ourselves from walking up stairs. Power lab is instrument which has essential use in performing. Observe the output voltage waveform, scr voltage and gate signals for various firing angle 5. Complete the connections as per the circuit diagram. Simple machines include a lever, a pulley, a wheel and axle, and an inclined plane. Go to a flight of stairs and measure the height of one step 2. Work order forms are used to have a proper documentation of the work to be done. Samantha wolter ap environmental science 8th 09 18 091418 lab 2 work, power. Lab coat, closed shoes, long pants, long skirt or equivalent leg covering no shorts working with large volumes of organic solvents 1 liter, highly toxic organic solvents or work which may create a splash hazard major skin and eye damage potential poisoning through skin absorption. Work joules force newtons x distance meters step 1. Keep the potentiometer r1 in minimum position maximum resistance in the circuit 3.
Specifically, by doing an arm curl activity and measuring the distance that the weight travels students can calculate the work and power that their biceps and triceps output. Machines can change the direction or amount of force, or the distance or speed of force required to do work. Using a stopwatch, calculate the amount of time it takes each person to climb the flight of stairs 4. In physics, work is the application of a force to an object and the distance the object moves due to the force.