Logger pro slope uncertainty
Connect the smart pulley to the “Dig/Sonic 1” port of the computer interface. Open the file "06 Ball Toss" in the Physics with Computers folder. Limit Dh to 5 cm maximum. I got Vernier Logger Pro to do the tangent and slope calculations for me which is why there are more decimal places than uncertainty. g. 2MeasurementandUncertainties of the lab manual (steps shown The spreadsheet function of Logger Pro was programmed to perform the obvious calculations of averaging the five sets of data, taking the reciprocal of the average pressure data, finding the product of pressure and volume, finding the uncertainty in the volume, converting units, etc. 1 6010 6030 5930 6000 30 0. Linearising is the process of manipulating data so that it is possible to plot a straight line graph. de 2021 Here m represents the slope of the line, and b represents the that an outlier resulted from an obvious experimental error (e. With calculators or handhelds, auto-ID will set the mode to Time Based. The raw logger pro data was interpreted and then presented in a table format. Highlighting 10 points on your graph after the collision, determine the velocity and associated uncertainty after the collision. into Logger Pro, generate a graph, include error bars, and plot max and min slopes. Part 1: Linear Regression, Dependent and Independent Variables Slope uncertainty. From these data, find the value of the phase constant, Use the graph or data table to find the amplitude of the oscillation. 23-Jan-2016 A tutorial for drawing maximum and minimum slopes using Logger Pro graphing software. Open “Logger Pro” vernier software. You can click on the Y-axis labels to determine which one you want to view on the graph. Round the uncertainty to just one digit and round the average How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. Will correcting for the background count rate affect your graph? 2. Click on the “Applications” folder on your dock. time graph during the free motion of the glider. Check that the Quattro Logger’s batteries are in place. If you do it by hand on graph paper, it would be easy. She then asks you to analyze her Logger Pro data and: (1) derive the equations needed to determine how much charge is on each ball as a function of their separation; (2) use the Logger Pro New Column features to calculate the charge, q, on each ball as a function of time to LOGGER PRO GRAPHING DIRECTIONS. 22 de set. Use the Logger Pro software to select a range of data values that are along a regular curve and adapt the data with a "natural exponent" curve. Objectives Understand x, v, and a (displacement, velocity and acceleration) Understand motion graphs (x vs. is the slope of x(t), the quantity while the standard deviation is the uncertainty − the spread in 20. A. Open “Logger Pro” program from desktop. Note A guide for LoggerPro Software is given in Appendix 1 at the end of this lab manual. Perform a "linear fit" on the data. The slope will have some meaning that will be used to determine a quantitative answer to the lab’s purpose (sometimes it’s the inverse of the slope that will answer the purpose) As with any measured or calculated value, we need to determine the uncertainty. To determine the velocity of Cart 1 after the collision: Use the blue best fit line from Logger Pro between time 1. Double-click on the "X" at the top of the first column. You see the collected data varies and can even use the stat button to get more information. This lab will give you some practice using the program, especially since you will use it many times in your chemistry courses. Slope Estimation. It is important to note that the investigations on width and height are shown separately. will perform this calculation for you. 3sec2 =− 8. Fill out the average and uncertainty columns in the data table. Be very careful not to let the weights slip off the weight Logger Pro clamp . B. mass of cart 510 grams uncertainty in mass Slope of the acceleration of system vs. 5. 944m 1. Enter your data from Data Table 2 into Data Set 2. Excel Details: If you do the trendline in Excel, I am not sure how you would do this. Record the slope and uncertainty in Table 5 of your Activity Log. The slopes (and the slope uncertainty) are the same. (Use Logger Pro for statistical data to calculate avg. Using LoggerPro “Nothing is more terrible than to see ignorance in action. app” to open the Logger Pro program. Set up the apparatus as shown in Figure 1. 4m above the detector and plot distance and velocity. Logger . Here is the max slope that ‘looks’ like it fits. (Double-click on the Logger Pro icon, or select Logger Pro in the Start Menu. Arrange windows. Rename the X column to your independent variable. $\endgroup$ – Logger Pro agrees with the meter stick measurement. Use logger pro to calculate mean time and uncertainty. The uncertainty δ(Δt) = δti 1 + δti = 0. taken data. Run B: From the average (mean) time of fall, calculate the experimental gravitationalacceleration. K. Open!Logger!Pro!in!the!Logger!Pro!3!folder!found!in!Applications. Write down these values, and write the equation that allows you to enter the data. The slope value should be y-intercept. The main PASCO Force Sensor, Uncertainty “rules of thumb” handout, Logger Pro is award-winning, data-collection and analysis software for Windows Read values and slope from graphs using examine and tangent line tools. Important: Line up one of the clear sides of the cuvette with the arrow at the top of the cuvette slot. Uncheck the “Print Position the motion detector under the protective cage. 1094 m/s 0. CCRECORD THE SLOPE (m), IN YOUR TLN. 65s and 2. 9. Start the Logger Pro program on the laptop. Start the Logger Pro program and open file: Probes & Sensors\Photogates\Pulley Switch to Logger Pro. Pro . Use Logger Pro for statistical data to calculate avg velocity and uncertainty from location at a constant speed keeping in line with slope of the graph, 9 Logger Pro, the LabPro, the Universal Lab Interface and the Serial Box Far more useful to a student or scientist is the uncertainty of the slope and Vernier Software makes a great application called Logger Pro. Calculating Uncertainty Using Random uncertainties Excel what and how Logger Pro measures the data. ) However, even without entering the uncertainties for position and time in the columns, logger pro generated an uncertainty on the slope of the graph. Figure 2: Setup of the Franck-Hertz experiment ¶. Using this round-trip time and the speed of sound, you can determine the distance to the object; that is, its position. Be very careful not to let the weights slip off the weight constant slope on the velocity vs. ** [NOTE: By examining the setup of the system (see comments above), we can see ***(f) Your next task is to use the same Logger Pro file and the new column feature once again to determine the magnitude of the charge on each ball for times between 100 s and 520 s. How to use Logger Pro in high school (especially International Baccalaureate) sciences to make good graphs for lab reports. Read through this handout in its entirety. Adding the dot for the final position of the meter stick+ clay which turned out to be 0. Calculate the resistance value by taking the slope of the graph and multiplying by 1000. Basic Data Collection and Analysis Using Logger Pro 3. b. News & Advice Read values and slope from graphs using examine and tangent line tools; 2. Vernier’s Logger Pro is a software package that can be used to control a simple data acquisition system attached to a USB port of the computer. After three revolutions make sure that the grooves on the pulleys are precisely aligned with the dark line on the masking tape. velocity and uncertainty) Run # Average Velocity, (units) Standard deviation (units) 3 -0. 23 Fit a linear equation y=At + B, using the curve fit tool of logger pro. Matching position vs. taking the example used in this section; The change in temperature and the mass are related by the equation P=mcΔT/t. What does the area under a velocity vs. These instructions will serve as a basis for presenting data in a graphical format and analyzing it using Logger Pro’s tools. Plug in the cable from the Motion Detector into Digital/Sonic Port 1 on the Lab Pro Interface Box. This lab will instruct the use of different tools such as the Linear Fit and Statistics tools in Logger Pro. Connect the Logger Pro unit via USB to the Mac. Figure 1- Block on incline plane Using LoggerPro “Nothing is more terrible than to see ignorance in action. Conclusion: How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. time graph below. When you perform a linear regression of your data points using the “Analyze > Linear fit” function, Logger Pro can automatically calculate the uncertainty of your slope and -intercept (see “Working with Logger Pro” video tutorial Part 2). 02 3 10 0. 4856 [rad/s] Logger Pro Data These components each had uncertainty associated with them which led to uncertainty in the final calculation of the Using Video and Logger Pro to Measure the Motion of Objects Page 2 of 3 9. Open Logger Pro; Open movie from file => open => sample movies => basketball shot If the equation doesn't list an uncertainty for slope and y-intercept, Furthermore,the slope of this line is the unknown exponent n in equation 5. Practice how to use the computer software. The slope of a velocity vs. Record the slope of the graph below Data Table 2. 7. slope based on the two volumes involv e d and then using the . M. Logger Pro can perform linear regressions, but we will use this software later. time graph represent? Test your answer to this question using the Motion Detector. Do the same for your Y column for your dependent variable. The reduction in velocity (-Δv) and the peak acceleration data were extracted from the Logger Pro software and these are given in Table 1, Table 2. - found the line of best fit and the slope of How to use Logger Pro in high school (especially International Baccalaureate) sciences to make good graphs for lab reports. Then write Logger Pro graph, and then smoothly rotate the three-step pulley counterclockwise through three revolutions with your finger tips. Data Input Formatting Logger Pro is the software that controls the interface and displays the results of the temperature sensor measurements. displacement and find the slope (which is the spring constant k!) of the line. Show equations and calculations. Connect the Quattro Logger to the PC. 002m/s 4 -0. edu. Logger Pro com- putes velocity by tainty of the slope from the ﬁt. Then I found the slope at the linear portion of this plot, which is the acceleration of the cart. The printout must show the graph, the information needed to generate the equation (slope and intercept) for the line, and the correlation reading. Since we used Logger Pro to estimate the slope to figure out the velocity, it is not very accurate because the slope changes slightly every time, depending on the different domains we choose to use. LoggerPro Video Analysis of a Projectile. Using the cursor in Logger Pro, or by examining the data table, find the position and velocity of the black rubber stopper at one instant in time. One of the advantages of using Logger Pro is that a student does not need calculus in order to find the ar-ea under the graph or its slope. t, a vs. Log on to your NCSSM account. Once the Windows NT desktop has appeared, click on the Start button in the lower left corner; then mouse-over Programs, Vernier Software, Logger Pro 2. LW LW LW P also supported, including built-in slope/offset correction. Determine the consistency of your acceleration values and compare your measurement of g to the accepted value of g. 005m and uncertainty for the time as 1/60s, yet the uncertainty of the slope didn't change. Constant accelerating force Measure the mass of the glider and record this value, m g, on your spreadsheet clearly labeled with appropriate units. Logger Pro does provide an estimate of the uncertainty for the fitted parameters In these data the slope intercept and their uncertainties can be found. If you don’t supply an “X” column, the program will find one. Disconnect the spectrometer from your computer. 1 or later, or Windows XP/Vista/7. Double<clickonthe“X”intheDataSet !window. 34 N Uncertainty of W ave (for 15ml salt solution) ΔW that the uncertainties of the slope have a range How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. docx. In this video, we look at another If you do the trendline in Excel, I am not sure how you would do this. Go through list of probes and highlight Dual Range 50N Force Probe. Double-click the name. 854 10. Rearranging gives ΔT=PΔt/mc since P, Δt and c are constants then we can say that ΔT ∝ 1/m (ΔT is inversely proportional to m) So if we plot ΔT on the y axis and m on [Click on Logger Pro and open file Changing Velocity 2 ]. a=g= −2y t2 a=g= −2∗6. In the box labeled “Name”, change the name to match the variable of the data column on your worksheet. The numerical derivative is the weighted average of the slope of ‘n’ points around each point. , . The ideas of averaging constant data and finding the standard deviation will be introduced. 934 9. The distance, measured from one edge of a black band to the same edge of the next band, is 5. Repeat your experiment several times to estimate an uncertainty to your decay constant measurement. Medical Interventions Logger Pro Resource Sheet – Page 3 How to perform a Linear Fit: The Linear Fit feature draws a linear regression line over the selected area of a graph and calculates the slope (m) and Measure and record the mass of your cart, m. Next, you will place a data point on each frame of the video corresponding to a point on the object whose motion you wish to analyze. This video shows how to create graphs in Logger Pro with uncertainty bars, and how to manually add max/min lines of best fit. I. A column of real numbers Plug in the cable from the Motion Detector into Digital/Sonic Port 1 on the Lab Pro Interface Box. Interpret the slope of the line if the data follow a line. Double-click on the “X” in the Data Set window. Kimothi, The Uncertainty of Measurements. The absolute uncertainty in a natural log (logarithms to base e, usually written as ln or log e) is equal to a ratio of the quantity uncertainty and to the quantity. Record this Average Period in the Pendulum Data Table. Once a connection to the VW Quattro Logger has been estab-lished, the main menu How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. 99 x 10 N†m2/C . C. 13 7 30 0. II. Finding the Order With Respect to Crystal Violet: 1. An example is shown below. ESTIMATING EXPERIMENTAL UNCERTAINTY FOR A SINGLE MEASUREMENT . 7 347 366 350 350 10 5. When asked “Do you want to save the changes you made Logger-pro is able to make a graph by marking the distances after each time frame that the filter fell. 8 Use Logger Pro's Analyze-Examine Tool with the data collected by Logger Pro to [Click on Logger Pro and open file Changing Velocity 2 ]. Unit m/s m/s (Initial velocity) 1. Graphing. If you have a PC or Mac but are unable to install Logger Pro, contact Joon for help. APPENDIX B - COMPUTERS AND SOFTWARE: iMac & Logger Pro. New window opens with two blank graphs (position versus time and velocity versus time) and a blank table (time, position, velocity) as shown below. 34 5 =0. Click on the Statistics button and pick the Mean or Average option. The Motion Detector measures the time it takes for a high frequency sound pulse to travel from the detector to an object and back. Circles Unit Angles Inscrib. applied net force” propagates See Page 1. Is there a consistent pattern in our data? We can fit a curve to our plot, but without knowing the range of uncertainty lab magnetic Using the slope and uncertainty from the logger pro graph of of Bearth (in Teslas) with the error assuming that the radius of the ring Basic Instructions – Logger Pro is capable of doing many things as far as data entry and Uncertainty Calculations in the Gradient and Y-intercept. What kind of relationship is this? _____ 8. Each click places a point locating the x and y coordinates of your object (relative to the origin), and advances the video by one frame. is the slope of x(t), the quantity while the standard deviation is the uncertainty − the spread in When plotting graphs, you do not need to include the uncertainty of the plotted values in your graph. Graphical Analysis. t, v vs. 8 Use Logger Pro's Analyze-Examine Tool with the data collected by Logger Pro to How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. 02 m and the average human response How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. Developed by Vernier Software & Technology, this educational program is a convenient tool that supports various scientific sensors and equipment for academic use. moomoomath. 1. Measurement Voltage (V) Current (A) 1 0 0 2 5 0. Logger&Pro&GraphingInstructions&! 1. 902 m/s 2. 01 s and is determined by the electronic unit controlling the Logger Pro acquisition system. The point of drawing the graph and best fit straight line is to use the gradient to Error Analysis. If 4. The remaining instructions will teach you to work with Logger Pro. Measure the Average Period using the graph on the computer screen and the Logger Pro Statistics functions. Connect the Motion Detector to your LabPro and place it near the bottom of the incline. Therefore the slope m = R, the resistance if the Ohmic material. What type of motion is occurring when the slope of a velocity vs. Make sure that the pulley is stable and well aligned by using the rubber stoppers. Discard your solutions down the drain. In order to plot a graph of just Part 3 data, go to Axes Options, unclick Part 2 variables and click on the [G],[R],[B] variables for Part 3. • The slope can also be easily determined by fitting a linear “best fit” line to the data. Connect the other probe tips to the signal output as shown in the figure. applied net force” how the mass of the moving system was determined: (Show equation and sample calculation) 3 The uncertainty in the slope of the graph “acceleration vs. time graph to check your answer. applied net force” propagates Logger Pro 3. Overall, based on the way this experiment went, a safe assumption for an uncertainty percentage would be in the 15% range. Add a velocity graph. 319-335-1686 physics-astronomy@uiowa. a single reading, or the uncertainty from scatter. 18 9 40 0. Calculate the concentrations of NaOH after dilution. 0 611 606 588 1. 4393 m. Also, the value of the How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. 0 Read independent reviews on Logger Pro® from Vernier on SelectScience . applied net force” propagates Slope of the acceleration of system vs. Logger Pro will automatically construct a graph of position vs time in both the horizontal (x) and vertical (y) directions. derivativeSG: derivativeSG(“Y”, “X”) “Y”: A column of real numbers “X”: Optional. This becomes especially helpful when teach-ing algebra-based physics courses (see Fig. 08 9. 6 UNCERTAINTY ESTIMATES AND HYPOTHESIS ASSESSMENT 0 100 200 300 400 500 600 0 20 40 60 80 100 120 Mass [g] Distance [cm] 0 100 200 300 400 500 600 0 20 40 60 80 100 120 The objective of this lab is to become accustomed to using Logger Pro data collection software and the Lab Pro interface. Use Logger Pro to analyze video and calculate position, velocity, and acceleration. For this lab you could use a spreadsheet program (such as Excel) or a graphing calculator. Print your graph: In LoggerPro choose File then Print. • Now divide this rate of change in the concentration of each gas by the weight Position the motion detector under the protective cage. 4 saacadood kahor How to find the uncertainty in the slope This is an issue that I have not Here, I am going to manually fit two lines in Logger Pro. can find the intercept and its uncertainty, we can find k and its numerical values of the slope and intercept of the line? (d) Using Logger Pro, plot a graph of yaverage against the time t for the free-fall data in 16-Ogs-2012 Logger-Pro program to display accurate graphs that convey meaning. Make sure to save both the slope value and the uncertainty in your worksheet. Record (on your Worksheet) the slope and uncertainty of the linear fit to your 9 points with all digits, just as they appear in the data box; for the time being you will keep all digits for subsequent calculations. Time plot the slope gives us the value of “g” acceleration due to gravity as 9. Logger Pro or LabQuest, it will already be set up to collect in this mode. magnitude of the gravity force and its uncertainty: Slope logger pro software; average acceleration values; 10 pages. Time. The software provides built-in functions to find the area under the curve and its slope. Logger Pro will return an equation for the best fit line to your data with values for the slope and intercept. 4LAB How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. This LEDs. 3 Basic Instructions – Logger Pro is capable of doing many things as far as data entry and analysis. harvard. Equipment: Computer station, Vernier computer interface, Logger Pro, Excel, 2 Vernier motion detectors per group, track, level, 2 carts per group, extra weights In this experiment you observe collisions between pairs of carts under different conditions, and measure changes in momentum during these collisions. applied net force” propagates The uncertainty δ(Δt) = δti 1 + δti = 0. If the Logger Pro program is not running on the computer, start it by double clicking on the appropriate icon on the desktop. time graph is zero? 10. The random uncertainty can be estimated as ½ of the full range of measured values. The task at hand here was to insert videos into logger pro and use its technology to derive a graph from the movement of the soccer ball in each video. This column will contain the ball bearing Start the Logger Pro program on the laptop. Take your LabQuest to one of the lab computers. The complete data table in Logger Pro was too big to show all Slope of the acceleration of system vs. 4. computer-based Virtual Logger Pro supported sensors and experimental After taking the video and scaling it on Logger Pro we can derive the actual height our meter stick+clay system will have. ! 2. Logger Pro can fit a straight line to a portion of your data. 04 g). Draw arrows to complete the sentences below: The X direction is … The Y direction is … Horizontal motion analysis How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. - decided which variables to graph on the x and y axes, and done so with proper error bars shown. Velocity vs. 005 = 0. Also compare the force you obtained from the mass with the force measured by the force transducer. D. Connect the two voltage probes to channel 1 and 2. You can set ‘n’ in Settings for (Name). Save this file and be able to access it at school. Print graph with Logger Pro 1. Logger Pro agrees with the meter stick measurement. Adding steepest and least steep lines. Here δm*is the uncertainty in the slope, m max is the slope of the or 10. 6. I analyzed four different videos, one with horizontal motion, one with vertical motion, and two with both! This is a screenshot of my graphical analysis mental uncertainty in each of the measured variables. You will be dropping it through a Photogate to measure g. (4) Follow the instructions below to make a connection between your answer in (1) and in (3). Plug in the green LabPro interface with the small power supply to the nearest electrical outlet at the lab table. Drop a mouse pad from at least 0. Uncertainty in the gradient: minimum and maximum fit lines; Applications and skills: Linear fit in Logger Pro; Fitting maximum and minimum fit lines manually in Logger Pro; Download the falling volley ball video and import it to Logger Pro. Go to the Experiment/Setup sensors/LabPro1 menu and choose the port which force probe sensor is plugged in. Logger-Pro collected data: Measure something that should be constant. Then connect it to the side USB port of the computer with the all black cable. The uncertainty in V o, obtained by linear The slope of which is the value of Planck’s constant. applied net force” propagates Logger Pro com- putes velocity by tainty of the slope from the ﬁt. Compare this new value with the value of the resistance set in the simulation by calculating a How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. Repeat steps 2 and 3 three more times using the same resistor, for a total of four resistance values and their associated uncertainties. Enter your data into the X column. This is probably where we get the 2. It uses data from Shem Thomson' However, even without entering the uncertainties for position and time in the columns, logger pro generated an uncertainty on the slope of the graph. 8. Step 5. If you don't have a PC or a Mac of your own, you can use Logger Pro on a computer in the Science Center computer lab to complete this part. 1. Conc (mmo[/l_ Latest n 0. Propagate the uncertainty of the slope to estimate the uncertainty associ-ated with C. This gives a min slope of 3. Do the same things you did to the graph in Part 2 so that you can determine the value of K for this set of data. 0002 m/s PART 3. If the water was not stirred properly than the distribution of heat in the water was also uncertain. Each lab partner’s report must have a Logger Pro generated printout of the calibration curve attached to it. 005 + 0. ! the Logger Pro file to your partner at this point. Pay attention to the notes on page 2, and note that L 9= 1. To do this click: File ; Print. Goethe (1749-1832) LoggerPro is a general-purpose program for acquiring, graphing and analyzing data. In Logger Pro, switch to a position vs. 4393 m Final height of the meter stick + clay system from Logger Pro. If you are using the slope to determine some physical quantity (eg, the acceleration from a graph of velocity vs time) then the standard deviation of the slope is a reasonable 67% confidence level uncertainty. In this activity on Measurements and Uncertainties, you will be introduced to measuring with a Vernier caliper, estimate uncertainty, practise the (max - min)/2 method, distinguish random and systematic errors, process data with Excel, draw graphs with Logger Pro, understand the benefits of linearisation in identifying relationships and calculate the uncertainty in gradients. Be very careful not to let the weights slip off the weight Logger Pro graph, and then smoothly rotate the three-step pulley counterclockwise through three revolutions with your finger tips. 07 g, the uncertainty is 0. Excel will provide the VW Quattro Logger, 2009/8/31 3 Setting up the Logger Preparations 1. applied net force” propagates Launch Logger Pro by clicking on the icon below. As said, the sensor of known uncertainty measured the position of the cart as it slided down a ramp and a plot of Velocity vs Time was automatically generated by the program on the computer. This will bring up the Column Option window. What is the uncertainty on your slope, the velocity? Record this in the data table on page 5 of the Logger Pro file. 22m/sec2 Knowing that the uncertainty in height measurement is ∆H = 0. h=0. Creating Error Bars in Logger Pro. Choose a function and hit “Try Fit” to have Logger Pro Slope = α: 1. ** [NOTE: By examining the setup of the system (see comments above), we can see Logger Pro Hardware Setup 1. 5363 m/s0 0. 3 462 470 455 1. 3. 68 m, m 1 2 m 2 0. 9 9. 4 s-528,6 n Absorbance at 380,0 nm Absorbance at 528,6 nm start Læreren JL - Jette Le Uncertainty in the gradient: minimum and maximum fit lines; Applications and skills: Linear fit in Logger Pro; Fitting maximum and minimum fit lines manually in Logger Pro; Download the falling volley ball video and import it to Logger Pro. Below is a Logger Pro file showing two linear fits of almost the same data; the data sets are just horizontally offset by 100 units. Lamp* and J. Here, I am going to manually fit two lines in Logger Pro. applied net force” propagates Fit this to a line in Logger Pro. t) Be able to interpret motion graphs and to make prediction Learn how to measure velocity and acceleration Problem solving skills Add error bars ±1°C to the ΔT values. 4LAB Slope of the acceleration of system vs. We also used a curve fit to find the slope which will help us to eventually find the acceleration since we now know the velocity. His email address is pahk@fas. Do this by repeating the ball toss experiment How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. The Storm’s software lacks the ability to set up alarm conditions. Using the left button on the mouse, click on the How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. 34 N Uncertainty of W ave (for 15ml salt solution) ΔW that the uncertainties of the slope have a range i. A graphing calculator is faster and more suitable for our objectives in this lab and that is the method we will use. Drop Low (Normal) Drop Higher Drop. W. By graphing our Velocity vs. Consult the Data Loggers, Software and Sensors appendix to learn how to determine the slope using the linear fit tool in Logger Pro. 936 9. With the LabPro connected to your computer, launch Logger Pro. 2s. Data Analysis & Discussion. McCormick; Last Update: September 7, 2010 . time graph is a measure of acceleration. 94 0. 0 and a max of 3. Uncertainty in logarithms to other bases (such as common logs logarithms to base 10, written as log 10 or simply log) is this absolute uncertainty adjusted by a factor (divided by How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. Phys Open the Logger Pro application. You should see the following screen if you are using Logger Pro and LabPro with no sensor attached. Use the red best fit line from Logger Pro between time 1. Use ORIGIN or Excel to plot force vs. What additional information will you need to There was uncertainty in the watt meter and in the logger pro thermometer. Categories. Logger Pro clamp . Input processed data (averages) with x being IV and y being DV. Part III. 05 4 15 0. Round the uncertainty to just one digit and round the average Uncertainty in Force (N) 0. Physics 1050 Experiment 1 Part II: for slope. Uncertainty and Propagation of Error. t plot from Logger Pro 9. y Using the method appropriate for your computer, start the Logger Pro application. 3) Choose “Percentage” or “Fixed Value” depending on your need 4) Type the constant into the “Error Constant” text box and click “Done”. Launch VW QL Manager 3. If 203 Van Allen Hall Iowa City, Iowa 52242-1479. 2MeasurementandUncertainties of the lab manual (steps shown When plotting graphs, you do not need to include the uncertainty of the plotted values in your graph. Click on “Start > Programs > VW QL Manager” to launch the pro-gram. 6. Slope uncertainty. 14 8 35 0. If Logger Pro is running with someone else’s data, click FILE, “New”. Download the Logger Pro software and learn how to use it. Write in the correct variable name, INCLUDING A SHORT NAME AND INCLUDING UNITS. Slope = α: 1. Logger Pro is a general-purpose data-collection and analysis software that allows you to easily collate data and gauge readings. 0 10. Change the “Short Name” to the symbol for that variable. Slope of the acceleration of system vs. 5. 2 for an uncertainty of +/- 0. Computer Science - Broadcast Journalism; Career and Technical Education (CATE) sure you paste the data into the Logger Pro file into the correct columns. 2). Perform a motion analysis for the fall. Click Analyze then Linear Fit to perform a linear regression of the selected Logger Pro Graphing Instructions Follow these instructions to enter data into Logger Pro 1. If you have a PC, open a second copy of Logger Pro and open your template graph file you Logger Pro clamp or ring stand to secure Photogate PRELIMINARY QUESTIONS 1. 21 10 45 0. Here δm*is the uncertainty in the slope, m max is the slope of the I do not think using percentage uncertainty would make sense here because you could measure the slope with however big or small numbers you wanted, depending on what two points you chose to use. 4856 [rad/s] Logger Pro Data These components each had uncertainty associated with them which led to uncertainty in the final calculation of the LOGGER PRO GRAPHING DIRECTIONS. Logger Pro Purpose Vernier’s Logger Pro® is a graphical analysis software that will allow you to collect, graph and manipulate data. Logger Pro calculates the uncertainty of the parameters in fitted lines and curves using all of the data points by means of standard curve fitting algorithms. 0029 kg and k = 8. Double clicking the "x" and "y" will allow you to LABEL the AXIS and input UNITS. Part 0: Setup a. Click on this icon: 2. Open Logger Pro 2. 10 6 25 0. Logger Pro Best-Fit Instructions with Uncertainty 1. Data are logged internally and log files can be saved to a USB device using either of the USB ports on the front of the logger. More complex or customized algorithms can be created using BASIC programming. Topics Logger Pro agrees with the meter stick measurement. Logger Pro ®, also a commercial software. I, then, entered the uncertainty for the position as 0. ” J. time graphs. how to draw error bars by using logger pro (3. 31 Jul 2007 In the picture below, the data points are shown by small, filled, black circles; each datum has error bars to indicate the uncertainty in each S. Remember to use an equation ’ ! How was the net force applied to the system calculated in Logger Pro: (Show equation) From the slope of the plot “acceleration vs. Open Logger Pro on the Desktop. First indicate which portion is to be used by dragging across the graph to indicate the starting and ending times. 419 2. 2. Slope of v vs. T o 06333 Slope 1485 00003551 ms bY intercept 1060 00009333m Uncertainty of Fit Lab 6 - Logger Pro -Galileo projectile Motion - 09 - 28 - 18 copy. If your relationship is nonlinear you can use the “Curve Fit” button (or Analyze > Curve Fit) to select from among many preset functions. $\endgroup$ – ***(f) Your next task is to use the same Logger Pro file and the new column feature once again to determine the magnitude of the charge on each ball for times between 100 s and 520 s. Which is how we came up with the position vs. Select a region of the graph that encompasses at least 20 period measurements. INCLUDE UNITS. Conceptually, as a fit parameter is less constrained by the data points, typically due to scatter of the points about the fitted line, the lower constraint is reflected in a larger uncertainty. Using Logger Pro, Graphical Analysis, or a spreadsheet, make such a graph. Click “Logger Pro” folder and “LoggerPro. 8) how to add maximum and Enter 'm(slope)' and 'b(y-intercept)' values and then, try to fit these lines. or. Enter your results in Table 4. m (Slope): 0,3466 b (Y-lntercept): 0,05624 Correlation: 0 9947 RMSE 0 Concentration (mmol/L) 100% õöger Pro - Logger Pro - Untitled* File Edit Experiment Data Analyze Pagel Insert Options Page Help an OkQ 10 02 No device connected. Plot the dependence of velocity vs median time. 5To match the graph first using the position indicator I set this to the same position as the initial Fit this to a line in Logger Pro. DETERMINING THE UNCERTAINTY IN SLOPE AND Y-INTERCEPT . Plug the black motion detector into the DIG/SONIC 1 port of the Labpro with the black cable with white plugs. This LabPro interface is an analog to digital converter capable of being applied to seve check Show Uncertainty for slope. Using the Logger Pro program create a graph of Force Needed vs Distance. Do this by clicking on the y-axis and selecting Position. 35% difference. To ﬁnd the uncertainty of velocity δv use the procedure described in section 0. Inspect your Picket Fence. A label will pop up on your graph showing the slope (m) and the y-intercept (b): USING CURVED FIT TOOL 1. The spreadsheet function of Logger Pro was programmed to perform the obvious calculations of averaging the five sets of data, taking the reciprocal of the average pressure data, finding the product of pressure and volume, finding the uncertainty in the volume, converting units, etc. Place the cuvette with a sample into the Colorimeter cuvette slot. 0 cm. Also include an estimate of the uncertainty in your measurement. 08 5 20 0. Logger Pro - Untitled* [2 Show Uncertainty [Z] Show On Graph Open "Linear Fit Options" from the Logger Pro menu, and then select "5 significant figures" and "Show Uncertainties". This will bring up a menu that will allow you to try curves of best fit. 5 1222 1183 1207 1200 10 1. Locate the Logger Pro icon and double-click on it, or use the Start menu. edu minutes of discharge. Computer should be already turned on. The program will tell you the values of the three parameters, which is called A, B, C. Connect the probe tips of channel 1 to the output that is proportional to V a c c as show in Fig.