Lab report Definition and 69 Threads

I have been able to cut it down quite a bit and when I worked out the uncertainties and made the conclusion my teacher was unsure about my uncertainties.

Hello everyone, I am now doing experiment related to quantum erasure. After plotting the correlation measurement with and without blocking one of the polarization from the SPDC source (say, V polarization), I do not know how to work further on the gating time from the rate of the random...

how do I calculate static and dynamic pressure for the wind tunnel lab report, drag force, and lift force? Please, anyone? thank you.

I have done the experiment, and have a lot of data. For each data point (we have five), we did ten repetitions, for which we need to do video analysis. The analysis works frame by frame and gives a velocity between each frame. So, to get the value of one repetition, we already need to calculate...

i have attached my attempt above i have sent it to my teacher and he said i should fix the mistakes and resend it

a=m2g-m1gsinø-m1gcosøu/m1+m2

Homework Statement For my lab report I am asked to calculate the error of a couple of measurements which I did with a lux meter. I know that the lux meter has tolerance(or accuracy?) 5%. The instrument is digital and it's last digit is 0.1. The maximum reading is 47.5 lux. Homework Equations ...

Homework Statement Hello, I am currently attempting to complete a lab report involving the calculation of the total amount of CaCO3 in an unknown antacid tablet. This was done by calculating the pressure inside a flask before the reaction, then relating it to the pressure after the reaction...

Homework Statement I'm about to conduct an experiment about factors that affect the flight of an elastic band. The aim of this experiment is to find how the angle of launch, when shooting a rubber band, affects the range or distance of the shot. Do you suggest to consider the drag force? like...

< Mentor Note -- thread moved to HH from the technical forums to use a scpecific schoolwork problem to illustrate the general concept of torque in a FBD > I'm writing up a lab report for Physics class and I have to draw FBDs for torque being applied to a ruler resting on a pivot point. I've...

Homework Statement I have to write a report based on an experiment I conducted with the class in the school lab. The experiment was about orifice plate meter and venturi meter (both to measure rate of flow of fluids; this is an introductory fluids mechanics module I am studying). The...

I'm currently in first year engineering and I seem to be struggling with Physics, which is not unlikely uncommon. A simple problem I've come across is not doing correct error analysis when writing up lab reports. In my current lab, which is justifying the relationship of angular frequency...

Homework Statement Hi! So I'm trying to write a lab report about testing BSA solutions for protein concentrations using a Biuret reagent and a spectrophotometer. There is a portion that asks you to give some practical applications for this test and how it applies to biology. The only thing I...

Homework Statement I'm writing a lab report about an experiment I did where I essentially tested the effects of various planetary characteristics on a planet's orbital period. The planetary characteristics that I tested where eccentricity, mass, and distance from the Sun (or semi-major axis)...

Hi all, I'm a newcomer to these forums and this is my first post! I'm currently a freshman physics major, and I was hoping that I could get a little guidance from here. I'm well into my second semester and I've been enjoying most of my maths and physics classes. However, I've identified that a...

Homework Statement I did a lab this week measuring periods of swings of a simple pendulum. We need to curve fit the equation T=k*l^n and we got ln(T)=n*ln(l)+ln(k), and we need to plot the data we collected into the linear graph, meaning out y axes is ln(T) and our x axes is ln(l). So far all...

Not so much homework question, more about experience doing homework. You have likely had experience writing lab reports quite long. I have a partner and I am worried that he is doing what my university would consider plagiarism. I've asked him about it and got nothing back. To give context he...

So, we did an experiment to find the dissolved oxygen concentration in % over time in a stirred tank reactor at 2 different flow rates and at 3 different agitator speeds. We did not do any repeat measurements, it was just one reading per condition. Now I am confused what sort of error bars I...

< Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown >[/color] Last week we had to conduct an experiment with the aim of determining the speed of sound. I decided to play with doppler effect. I was more or less sure what I had to do but then the...

My question is : What is the absolute capacitance?In my electricity lab, I was assigned to prepare a report on measuring absolute capacitance of a capacitor using ballistic galvanometer. I am familiar to the term self capacitance but not the absolute one. My mentor asked me to find it out by...

I am struggling with doing calculations for a physics lab report. I understand how to calculate the equivalent resistance and the voltage of the battery. I am struggling with calculating the resistance of each resistor and the current of each resistor. I am sorry but I am getting very...

Homework Statement So I have to write a report based on an experiment that I have conducted. I know that my report is connected with Simple Harmonic motion and Elastic force, but I do not know how to describe it in a more efficient/scientific way. Essentially, I am dropping a weight (constant)...

Homework Statement Would it be possible for someone to look over the parts of my lab report. If there is anything that I did not mention in the abstract, please inform me. I wasn't sure how I should end the paragraph. My teacher wants us to write our opinion on the success of the experiment...

Homework Statement In this experiment we tied a cart to a hanging mass and measured the velocity as it passed through a gate, and recorded the mass of the cart. I calculated the potential and kinetic energy of the hanging mass and when I subtracted the potential from the kinetic, I got a...

Hey guys, I'm in the middle of writing a lab report and I'm having trouble with my abstract. I know as a 3rd year uni student I should know how to write one by now. I feel it's a bit long, what do you think? How could I improve? I'm not asking you to write it for me just some hints. The...

lab report -- How to write better lab reports in chemistry? Hi, I get very grateful if you help me get exampler on lab reporter on chemistry. I just want to read them, how can you write a better way because I'm not erfaran on engliska.

Homework Statement Hi, I was working on my lab report and I got stuck. I was trying to get some input please. So my experiment was to put 2ml of cornstarch, 2ml saliva, 2ml HCl. I vary the HCl concentration in 3 test tubes. I have one test tube that is just 2mL HOH. I added iodine in and I...

How long does it take you to write a prelab or lab report for chemistry lab? And what grades do you usually get for these assignments? I spend like at least 2 hours writing a lab report because I want to get a perfect grade. Also, I spend quite a lot of time on a prelab too, because I'm scared...

All that's left to write in my lab report is the conclusion, and I'm failing to understand what my professor is requesting of me. In the guidelines it says, "Compare your measurements to the expected values. State and discuss whether your results are in agreement with the expected...

I have some problems with my lab report. The teacher is dealing with us as expert in physics but I don't understand many things. She told us to find the uncertainty and percentage error , even though she didn't explain anything and I'm completely lost. I tried my best but I'm not even sure...

Homework Statement I've not written a lab report since prep school and I need some critiques (thorough). see attached Homework Equations The Attempt at a Solution

Hi. I've been having problems finding some primary sources for my lab report for days. I've used my school's search engines, but I can't find anything appropriate to use. My report will sum up my experiment on how pH affects an enzyme's activity (catecholase catalyzing catechol and oxygen to...

i am a A student in my university , and i just want to keep it that way can anyone give me an idea for reaching a perfect physics lab report and thank you

Homework Statement I wasn't sure what section to post this in, but for my honors lab, i need to cite sources on values or theories that i include in my lab report like normal. Yet I'm having trouble finding a decent source for the speed of light and the index of refraction of air. I...

Hello there if anyone could help me out with this question I would very much appreciate it. (Note this is my first post) For my optics lab Fraunhofer(single slit) diffraction patterns were observed(measured distance to screen(x) and had readings for intensity in the y direction.) I...

Best way to graphically draw vectors for lab report?? Homework Statement I've been feverishly trying to get my vectors drawn professionally for my lab report. The idea is that I need to find out the vector addition of two vectors graphically. The whole lab report is expected to be as...

Homework Statement In class we all measured a sheet of paper with a meter stick. We measured it in meters, and guessed about what the size is in meters. Then we did the same with decimeters, centimeters and millimeters. The measurements we got were .3 meters, 2.8 decimeters, 27.9...

I do not know how to write physics lab report and error analysis. Are there any sample on some websites?

lab report least square fiiting line "error"? what is least square fiiting line "error"? y=A+Bx It is said that there is errors involved in A and B;So the least square line has to be compared to some other lines to determine the errors. But how to do it? Are there any formulas?? Thank you!

Homework Statement I'm doing a lab report for frequency vs centripetal force and frequency vs radius. I have two tables and I have found the equations for both the graphs. When I combine the equations, should I make another table and how would it look like? Homework Equations f = c0.5 f...

Homework Statement I have to do a lab report on centripetal force, frequency and radius. My question is, does a graph have to show the (0,0) points? Also, I got an equation out of the graphing software for one of the graphs and it was y = 1.51x^0.4233, is it okay to use this equation or y =...

Now, before I begin, let me say that I have no idea where this would go. It's homework, and it does pertain to introductory physics, but I'm really asking more for general tips than answers to any specific problem. So, I have a lab report due in about 9 hours. I've already gotten part of it...

The experiment was to measure muzzle velocity of a ball fired by a 'spring gun'. Then to use the equations of projectile motion in order to determine the projectile trajectory. During the experiment we used a variable-height platform to stop the ball mid-air (at y = 0.4 m & y = 0.1 m). Now we're...

Hi all, so... now that I have to write lab reports at uni level, I'm starting to wonder what software would be best suited for the task. Currently, my workflow goes like this: iWork Pages (or MS Word) for the actual report. imported LaTeX (or Mathematica) PDFs for mathematical equations...

Hi, I need to plot a graph of F=kx for my lab report. By measuring x, displacement of spring for every mass (20g, 40g,50g) we found k. Now i need to draw F-x graph. I put my F and x data on graph w/o any problems. But when it comes to draw the line of F=kx i get stuck. Using the line's...

Hi PF! I have a lab report to do about a gas thermometer experience that I couldn't do. I'm very saddened about this because I should have manipulate mercury but the earlier group broke a container of mercury and so the class had to be disinfected and closed for some days. Basically it...

I'm working on a basic physics lab report (not homework) and I'm trying to understand something better. We're establishing a relation between voltage and current using Ohms law. It goes as follows: We apply different voltages to two materials and record the current in order to determine the...

Homework Statement I have a problem while writing the uncertainty of datas in my lab report (portfolio). So, here is my question: While multiplying some data with different uncertainties, I do multiply their uncertainties too, right? Then, if the multiplication of uncertainities has...

Maybe someone can help explain this a little for me. In my lab reports, I am to show qualification of error and then quantify one of those values. Obviously, in some of hte labs, only certain causes of error can be reasonable shown. For example, on the angular velocity lab, I can say that the...