Nwork and power lab pdf

The more people in your network, the better your chances of finding that perfect job. Choose from 500 different sets of work and power physical science flashcards on quizlet. Energy, work, and power and the related units of measure. Nov, 2012 i learned in this lab how to find the power output of a person. In this lab, youll calculate your work and power for climbing a flight of stairs at different speeds. In this lab you will examine three physical quantities. If work is in joules j and time is in seconds s, power is expressed in joulessecond, or the simplification watt w. 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.

Suppose you lift an object steadily at a slow constant velocity near the. Power, work and the waterwheel activity teachengineering. Work and power lab introduction does the amount of work that you do depend on how fast you do it. This lab was adapted from addisonwesley goetsch 10202006 phy stair climbing lab. Learn how to quanitatively relate the new concepts of work and energy to concepts you are already familiar withforce and distance. Learn work and power physical science with free interactive flashcards. Introduction to electrical installation work is, as the title implies, a first book of electrical installation practice. You can increase power by doing a given amount of work in a shorter period of time. Work done w is defined as the dot product of force f and displacement s.

Class 11 physics revision notes for chapter 6 work, energy and power free pdf download. It involves some simple calculations and thought problems involving work, potential energy and power following a physical activity in lab by the students. Both students will perform the experiment in the stairway that leads down into the gym locker rooms. We already said that both weightlifters are doing 1,960 joules of work. Physclips ch 7 definition of work definition of kinetic energy.

Power can be determined using work by considering the time. Work is expressed in newtonmeters, or the simplification, joules j. We determine the average power of a machine or device or person by dividing the work it does by the time it takes to complete it. When we lift a book away from the center of dear old earth, we do work on that book. Powerhouse lab included, labeled and organized all parts of the lab. To understand the concept of work to be able to calculate work for constant and nonconstant forces to understand the concept of kinetic energy to understand the relationship between work and kinetic energy equipment. This method was proposed by rodolfo margaria 1 in 1966 and has gained wide acceptance as a means of determining anaerobic power, both due to its simplicity and repeatability. It will be easy to fall behind and difficult to catch up. What we will be doing in lab today is utilizing a different method, borrowed from exercise physiology, to determine work and power. The only special materials required are stairs, bleachers or risers. The book will be of assistance to students taking a. There are only two relevant variables in one dimension. Creating an electric battery out of an ordinary potato is a popular science project for middleschool students. The effectiveness of teamwork training on teamwork.

The gliders motion is recorded by a computer attached to a sonic motion sensor, as in the f ma lab. The best advice i can give to you is to budget your time properly, dont wait until the last minute the night before to get your work done. Circle the letter of each sentence that is true about power. I output more power than the class average which means i was working harder since our height was all the same and work can be expressed as mgh. Work and power lab purpose to calculate the power output of a machine. For a horizontal path, power of a certain body moving along this. To determine the energy burned during that exercise.

Phet sims are based on extensive education research and engage students through an intuitive, gamelike environment where students learn through exploration and discovery. See how we help to enhance efficiency today while preparing for greater productivity tomorrow. 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. A calculate the amount of work that ralph did on the car.

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. The purpose of this lab is to determine the power of a person lifting an object. Observe the output voltage waveform, scr voltage and gate signals for various firing angle 5. The young person climbed up a steep spiral staircase. The process we learned is when something is changing in height. To determine the work and power required to walk and also to run up one floor of stairs. Stay connected to your students with prezi video, now in microsoft teams. The concept of horsepower the english unit for power tells you how much energy a car generate in a given time period. Work, energy and power class 8 science notes khullakitab. An air track is tipped by inserting a block of measured thickness under one end. For the remainder of this text, the term networkwill.

To compare the total work on an object to the change in its kinetic energy as a. James watt was a british scientist who invented the steam engine. When you decrease the force acting on an object, the power increases. View lab report work, power and energy lab samantha wolter. Science project on electricity in a potato sciencing. For instance, when a block is being pulled with tension t by a string whose angle of inclination is.

Use of power lab and lab tutor in undergraduate medical education laboratory teaching. Power work done energy used time time in the first part of this lab you will learn how the work done on an object is stored as potential energy of that object. Work equals force times the distance through which the force acts. 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. Calculate work and power exerted during an arm curl exercise. As technology, culture and brands drive continuous change, enwork designs for high functionality and adaptability.

If some students feel left out, establish another club known as the pony club. It is from its definition that power is the rate of doing work at specific displacement. Lets have a look at the ideas we already have about work, power and energy. The wingate anaerobic test is used to determine an athletes peak anaerobic power and anaerobic capacity. Class 11 physics revision notes for chapter 6 work. We were able to calculate our power going up the stairs. Coordinate all your classes and the homework required. Work power joule newton kgms2 joule second kg m2s2. The equation for power, p, is the work done divided by time t, p work t eq. Safety do not physically engage in this activity if you have an injury or a respiratory or cardiovascular condition. Learn how to explain a phenomenonhow the gauss gun. Thornton phys 1429, spring 2011 lab 8 work and energy energy is the only life and is from the body. A nonmetric unit of power commonly used in commerce and industry in the us is horsepower hp.

Conclusion therefore i conclude that work is related to. Materials stopwatchtimer, meter stick, stairs, 3 machines 3 humans procedure 1. Energy lab key southeast missouri state university. Your weight is equal to the force required to walk up the stairs at constant speed. Europe style dual 15 volt benchtop power supply lab test equipment. 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. It can also be defined as the rate of change of energy. But now, even tall skyscrapers can be built in a few years. How is the change in kinetic energy related to the net work done on the cart by the spring. But the amount of time in which you do work does affect your power the rate at which work is done. That attraction arises from the earths large mass, not the fact that it is spinning. Therefore, i conclude that work is related to power. Work joules force newtons x distance meters step 1. There are several good examples of work which can be observed everyday a person pushing a grocery cart down the aisle of a grocery store, a student lifting a backpack full of books, a baseball player throwing a.

This lab activity introduces the concepts of work and power to physical science students. Work and power lab with answer key by buckos science corner. Complete the connections as per the circuit diagram. Attach a weight to a string and attach it to the car over the pulley. Measure the height of the weight, ensure that the mass does not hit the ground before the car goes through the photo gate. 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.

Determine the weight in newtons of a weight using a. Work w is the energy transferred to or from an object by means of a force acting on the object. Lab 8 work and energy l81 name date partners lab 8 work and energy l081 name date partners university of virginia physics department modified from p. It is now your chance to pull it all together by writing a well written, thoughtful paragraph. To study low pressure boiler and their mountings and accessories. Power is the rate at which work is done or the rate at which energy is transfered from one place to another or transformed from one type to another. Each group of students should consist of two students. Title to study low pressure boilers and their accessories and mountings exp. Introducing basic network concepts 3 basetech networking concepts team 2230894 blind folio 3 figure 1. Work is said to be done when the force is applied on a body and the body covers a certain distance. Power is the rate that work is done, and when you exercise you do work. Work and power lab with answer key by buckos science. Your city wants to use hydropower instead of coal to make energy because they want to limit air pollution. Stairclimbing power lab episcopal school of dallas.

Complete the prelab question as part of hw5, and turn it in with the rest of your homework by 9. 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. In most commercial batteries, electricity is generated by a chemical reaction between two electrodes copper and zinc and an electrolyte sulfuric acid. An introduction to labview for 4 th year projects 09. Work, power, biceps, triceps, flexion, extension, lever, resistance, fulcrum, effort, joint. Experiment 201 work, energy and power carl joshua a. Work and power lab millersburg area school district. From the basic definition any units of work or energy and time can be used to generate a unit of power. In the second part you will figure out the work done during various activities and compute the power expended. Students with health problems should not perform the following activity. The unit of work is the joule j consider a force that acts at an angle. It should make logical sense and include all of the following terms. Lab report format exp 201 experiment 201 work energy.

Find and record the potential energy of the weight. The weightlifter on the right takes 1 second to lift his weights, and the weightlifter on the left takes 3 seconds to lift his weights. It is designed to be a simple introduction to electrical theory and practice and, therefore, does not contain any difficult mathematics or complicated electrical theory. Doing work either transfers energy from one object to another or transforms it from one form to another. If we increase the displacement twice, work is also increasing twice. Energy transferred to the object is positive work, and energy transferred from the object is negative work. Work and energy the purpose is to check the work energy theorem. Force is expressed in newtons n and distance is expressed in meters m. During this process, the force on the cycle due to the road is 200 n and. Power of power of 1 w 1 w is work done at rate of is work done at rate of 1js. Work, energy and power key concept energy is the ability to do work, and may be obtained in many forms. The international system uses joules j and seconds s for these, respectively. You will need a parent or friend to help you with this activity. Keep the potentiometer r1 in minimum position maximum resistance in the circuit 3.

Conceptual physics textbook chapter 8, cpo textbook chapters 3 and. The workenergy theorem says that the net work done by force acting on an object is the the net change in kinetic energy of the object. Phys 101 most of us love the dear old earth, in fact were quite attracted to it. Studentteacher actions what students and teachers should be doing to facilitate learning studentswillinvestigateandcalculatethevaluesforforce,work, andpower involvedinwalking. In this activity students learn how to use physics equations to calculate the amount of work their muscles do during an exercise. Mathematically, it is computed using the following equation. In a laboratory we attempt to evaluate the availability of the atpcp stores and the glycolytic energy system by measuring the amount of work an athlete can do in a short, maximal test.

Part numbering part number input power power cord ds1502af 115 vac us style ds1502bf 230 vac uk style ds1502cf 230 vac cont. J and time is in seconds s, power is expressed in joules second, or the simplification watt w. 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. Learn how to relate the new concepts of work and energy to concepts you are already familiar with force and. Stay tuned for the latest news and updates from enwork. This oer repository is a collection of free resources provided by equella.