Recent content by Cheesycheese213

Thank you! I've done some of those calculations now, it helped a lot! I guess I hadn't really understood electrolysis very well when starting the experiment :,D. I really appreciate all the help!

Oh thank you, I forgot to consider that! :D

Hello! Thank you so much! I thought that an increased current with nothing else changing would mean the amount of gas produced also increases? I just did another trial checking the current and the volume every 30 seconds, the current stayed constant (0.15A) and the volume also increased by a...

I'm so sorry if this is a bad question! I am doing an experiment measuring the rate of gas production (hydrogen) of the electrolysis of water, and I got myself a bit confused about whether I have been taking the correct measurements? I had originally thought that, since the "concentration" of...

Okay, thank you so much! I really appreciate it! :)

I'm doing an experiment with the electrolysis of water, and I'm hoping to vary the electrolyte concentration (Epsom salt/MgSO4) to see changes in the rate of gas production. I was planning to just do intervals from no salt to maximum solubility, but was wondering whether there might be any...

In class, we briefly discussed those experiments where a paper cup is filled with water and heated, and the cup does not end up burning while the water is able to boil. From what I remember of what was said, although I am not sure I understood correctly, the water has a much higher specific...

I was trying to research about polarizing lasers for an experiment, and there were some things that were confusing? A website said, I was wondering if the polarization ratio was the same as the extinction ratio? Also, I was curious because I thought 100:1 would be a lot, and not much light...

Ohhhh I see! I didn't connect that! Thank you!

Ohhh thank you so much! I just tried converting everything to radians, and I got a much smaller number (0.004961...). Its really interesting how it needs radians over degrees :D Thank you again!

For a lab, I needed to calculate the uncertainty of a refractive index that was found using Snell's law. I found an equation online for propagation of error for any general function, which was I thought that since my equation was I could just get rid of the variable y, and have After...

Ohhhh ok thank you so much! I think I'll try both of them just in case :D Thanks again!

I have taken calculus, but I'm not sure if we're supposed to use it because we haven't been taught it before for uncertainty? (I'm taking grade 11 physics)

Hi! I was wondering how would I calculate the uncertainty of a value that is calculated using both multiplication and division? For example, with something like: Q = mc(T2 - T1) I'm not sure what to do with the uncertainties for T2 - T1 uncertainty = Δm/m + Δc/c + (ΔT1 + ΔT2)/(T1 + T2) Or...

Hi! Sorry if this isn't a good question, but for an experiment, I wanted to try measuring the coefficient of friction of frozen solutions, but wasn't sure how to do it? I thought that since ice would have a low coefficient of friction, it would be interesting to see if solutions with water and...