Andable and ben pumpiniron, are in the weightlifting room. Work allows us to change energy from one form to another. 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. Power electronics laboratory manual introductory material v safety the power electronics laboratory deals with power levels much higher than those in most electronics settings. Work and power lab purpose to calculate the power output of a machine.
Phys 101 most of us love the dear old earth, in fact were quite attracted to it. What is my power requirement for climbing a staircase. You must follow the instructions for the testing device if performing such tests. Most of us love the dear old earth, in fact were quite attracted to it. Work shoppractice laboratory manual iii semester wsl1626 comman to all branches. This article explains what pdfs are, how to open one, all the different ways. To compare the total work on an object to the change in its kinetic energy as a. By michelle rae uy 24 january 2020 knowing how to combine pdf files isnt reserved. Marlap fully endorses the need for a laboratory quality system and a quality manual that delineates the quality assurance qa policies and qc practices of the.
See the inside back cover of this book for instructions on downloading the data files for students, or contact your instructor for more information about accessing the required files. Power electronics lab manual ssit 4 designing equations. Engineering physics lab manual pdf ep lab manual pdf. Will lifts the 100pound barbell over his head 10 times in one minute. Step four three times the physics lab worksheet stair case, i created these lessons, it harder because the student can. This lab should have led you to a point of better understanding of work and power. Energy, work, and power due at the beginning of lab 1. The author also acknowledges all lab instructors and undergraduates who have contributed to revisions of the manual. A power hacksaw is a type of hacksaw that is powered by its own electric motor also known as an electric hacksaw.
The purpose of the following laboratory assignment will be to calculate human work and power using a stair run test. If your pdf reader is displaying an error instead of opening a pdf file, chances are that the file is c. Measure the distance from the hanging mass to the top of the. A farmer clearing weeds in his field is said to be working hard. Safety do not physically engage in this activity if you have an injury or a respiratory or cardiovascular condition. If the machine is equipped with a detachable power. There are only two relevant variables in one dimension. 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. Make sure your laboratory has a contingency plan in place, and that staff members are trained on the plan. How can we better understand the role of forces in doing work. Force is expressed in newtons n and distance is expressed in meters m. When you apply power to the powerlab 8, the first thing you do is select the profile that matches the power source you are using. As a point of reference, a small push lawnmower typically puts out 34 hp. Energy, work, and power and the related units of measure.
Pdf is a hugely popular format for documents simply because it is independent of the hardware or application used to create that file. You can use the tools in paint to add something to a different document. This means it can be viewed across multiple devices, regardless of the underlying operating system. Laboratory work if your power simulator is open, go to file, then choose open file option. Unplug all output connections from the front panel of the dc power analyzer 5. Work, energy and power mixed exercise 2 1 480 6 power 480 80 6 fv t t. Calculate and record your power output by using the following equation. Read on to find out just how to combine multiple pdf files on macos and windows 10. You will also calculate and compare the power it takes for you to walk the stairs and run the stairs. For example, a car engine can do work to take chemical energy from gasoline and convert it into kinetic energy a moving car. To determine the amount of work done by slow walking or fast walking upstairs to determine the power involved in each type of motion to determine the relation among work, power, and type of motion background information. Go back to your calculations table for inspiration 3. To determine the amount of work done by slow walking or fast walking.
Any unsafe conditions prevailing in the lab can be brought to the notice of the lab be away from power tools while. Powerhouse lab included, labeled and organized all parts of the lab. You will be asked to make measurements and calculations for the total time to work the flight of stairs at least 7 steps and the vertical height of the stairs from the bottom to the top. This lab is a great application for calculating work and power. Adobe designed the portable document format, or pdf, to be a document platform viewable on virtually any modern operating system. In this lab you will examine three physical quantities. Energy transferred to the object is positive work, and energy transferred from the object is negative work. Use the following equation to compute the power output in watts of each group member listed in the data table. I paid for a pro membership specifically to enable this feature. It is now your chance to pull it all together by writing a well written, thoughtful paragraph about how the terms below are all interrelated. Objectives calculate the work and power used to climb a flight of stairs.
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. Your powerlab system can be periodically checked for basic safety by using an appropriate safety testing device. Depending on the type of scanner you have, you might only be able to scan one page of a document at a time. Use total height of the staircase and your weight in newtons.
Open the presentation, make it right 11 indulge, from the data files for students. Power electronics lab 2010 to find latching current. Selection file type icon file name description size. Chapter 6 involves walking up a flight of stairs and recording your time via a stopwatch or chronograph. To calculate the work and power required to move a brick along a wooden board. Stopwatch, meterstick predict your horsepower rating. If you are having trouble determining the force exerted, remember that force is measured in newtons. How much output work was done when you went up the stairs. Its a powerful app for viewing, printing, editing and annotating pdfs. If the powerlab system is found not to comply with such testing you must contact your powerlab representative to arrange for the.
A woman carrying water from a well to her house is said to be working. Thornton phys 1429, spring 2011 lab 8 work and energy energy is the only life and is from the body. Searching for a specific type of document on the internet is sometimes like looking for a needle in a haystack. When we lift a book away from the center of dear old earth, we do work on that book. Stairclimbing power lab name wiggins school district. One of the most important concepts in science is energy.
Work and power answer the questions based on data from the lab. Materials stopwatchtimer, meter stick, stairs, 3 machines 3 humans procedure 1. Pdf, ps, tiff, chm, djvu, images, dvi, xps, odt, fiction book, comic book, plucker, epub, fax view horizontal or vertical scroll, single page or. Did all of the students who climbed the stairs in the same amount of time have the same power output. Find the mass of the student that will climb the stairs 2. Using the conversion 1 horsepower 746 watts, calculate the horsepower you generated in climbing each set of stairs.
Brick horizontal wooden board spring scale metre stick string or fishing line stopwatch chalk procedure. Go to file menu from the tool bar, click open case. There is no need to open the instrument for inspection or maintenance, and doing so within the warranty period will void the warranty. To determine the energy burned during that exercise. It is commonly used in physiology, pharmacology, biomedical engineering, sportsexercise studies and psychophysiology laboratories to record and analyse physiological signals. The powerlab 8 stores two smart power management profiles. Vblock, marking gauge, files,hacksaw, drill taps, use of surface plate. Replace or repair any defective components and repeat tests. For more details on how to put together a business continuity plan. The zip file contains labview vis and other files which will be used in some of the experiments during the course. An oversized pdf file can be hard to send through email and may not upload onto certain file managers. 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.
In this portion of the experiment, you will test whether energy is conserved in a pendulum by using a photogate. Horse power by the physics lab worksheet stair power output they apply the output when the the height. Calculate the work and power that you can do with different muscle groups. One of the fun things about computers is playing with programs like paint.
This pdf file has all the bible verses we will cover during the school year, it also contains the definitions of character, honor and integrity and last but not least. Use the equations for work and power to answer the following questions. Given this and the definition of work, derive an expression for power as a function of velocity. The paint program can help you make new image files, but it cannot open document or pdf file. This most commonly occurs as a cord becomes fatigued. Powerlab before 1998 was referred to as maclab is a data acquisition system developed by adinstruments comprising hardware and software and designed for use in life science research and teaching applications. Be careful when working with spinning motors, and parts that can become hot. It is now your chance to pull it all together by writing a well written, thoughtful paragraph. What do joules, watts, and horsepower all share in common. Create a new matlab model file and create the matlab model as shown in figure 2. The benches have space for instrument operation and for storage, rotating machines, and power connections. What we will be doing in lab today is utilizing a different method, borrowed from exercise physiology, to determine work and power. A power hacksaw is used to cut the metal at required shape and size by means of a hacksaw which is driven by means of electric motor. Demonstration on use of hand tools used in fitting.
Few resources are needed for this lab and it can easily be completed in a 45 minute class period. Luckily, there are lots of free and paid tools that can compress a pdf file in just a few easy steps. The corresponding anode current when scr turns on is the latching. Al ameen engineering college,kulappully s7 power electronics lab department of electrical and electronics rms value of line to line output voltage is given by. In ece 469, the voltages will usually be kept low to minimize hazards.
To determine the work and power required to walk and also to run up one floor of stairs. If your scanner saves files as pdf portbale document format files, the potential exists to merge the individual files into one doc. That attraction arises from the earths large mass, not the fact that it is spinning. To the other end of the string or fishing line, attach the. Then youll compare your power with that of an ordinary household object a 100w light bulb. Most power hacksaws are stationary machines but some portable models also exist. Power in watts i2r l 300x1032x100 9 watts select 20 watts.
Ben lifts the 100pound barbell over his head 10 times in 10 seconds. Students will calculate the work done when lifting a 500g metal cylinder several times. How to sign documents digitally using microsoft power apps. The pdf format allows you to create documents in countless applications and share them with others for viewing. To combine pdf files into a single pdf document is easier than it looks. Students should download above file and unzip in on hisher computer. If you had climbed more slowly, how would the work have been affected. Pdf file or convert a pdf file to docx, jpg, or other file format. Pdf editor, pdf reader, annotate pdf microsoft store. A watt is therefore the rate at which a force of 1 newton does work when it moves a body at the rate of 1 meter per second in the direction of the applied force. In this lab, youll calculate your work and power for climbing a flight of stairs at different speeds. Laboratory data should be produced under a quality system. Navigate to the examples file, should be in the directory c.
Materials 1 flight of stairs at least 8 stairs bathroom scale meter stick stopwatch calculator safety precautions be safe as you work on this or any lab. Work is expressed in newtonmeters, or the simplification, joules j. Turn the device on by actuating the rocker switch into the on position. A pdf file is a portable document format file, developed by adobe systems. Work power time, calculate the amount of power expended in walking each set of stairs slowly and quickly. Finding the power generated climbing the work and does it is the power. In a drought affected region she may be required to carry it over large. Compare your work and power with that of a 100w light bulb. Students are able to see how physical effort correlates with work and power measurements. How to shrink a pdf file that is too large techwalla.
Allow students to skip steps so that the lab becomes a measure of power and. The lab workbenches overview each power lab bench is designed as a complete test station, with its own safety features and protective mechanisms. Plug machine to be tested into the gfci receptacle on the power lab 120. The terms work, energy and power are frequently used in everyday language.
Work w is the energy transferred to or from an object by means of a force acting on the object. Work and power in this lab you will calculate the amount of work done when climbing a flight of stairs. If some students feel left out, establish another club known as the pony club. Selection file type icon file name description size revision time user.
You are doing work when you use a force to cause motion in the direction of the force. Work and power lab millersburg area school district. Is a physical quantity defined as the force exerted on a moving object multiplied by the distance it moves. Students will collect and graph data and determine the power of their hand by determining the slope of the li.
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