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archimedes principle lab

Added Feb 06, 2020 •

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okay the Archimedes principle lab little bit about buoyancy and trying to verify that Archimedes is right in saying that the buoyant force on an object is equal to the weight of the fluid displaced so what we're going to do is we are going to get the weight of something in water and Out of Water we're going to see what the difference is and then we're going to see if that's equal to the weight of the water that's displaced so answer the what do you think question what will happen the weight of an object when it's submerged in water or submerged they determine the way to the masses by using W equals mg show work and record your findings below so the two masses that will be used in this experiment are 200g logical Mass and a 500g cylindrical Mass so first thing is new without doing anything but using V lwh cuz I'm G equation for you being 9.8 to find what the actual weight of these two is theoretically and then we're going to do an experimental and hopefully it will end up being about the same so before we experimentally we have to calibrate the four sensor so here's the directions for calibrating a force sensor really what we have to do is get the force sensor to realize what forces are are on it so first thing we're going to do is I'll get it set up don't think it's necessary for you to watch this step to determine the way to the masses by using a force sensor make sure the four sensor is calibrated we've done that I've done that collect data then use the Stephen to find the average record your findings rounded to the hundredths place so what I want to do is I'm just going to take a force sensor here hanging a 200 200g mass hanging from the force slide over here and collect some data naked see the force is pretty constant and then we'll come up here. State button and the average is what we want so that would be the mean 2.00 so then we go back to the lab right here we would write 2.00 Newtons to the hundredths place switch it up to the 500 gram recollect our data we could see it's pretty constant again n s p h e r mean -4.95 okay so now that the mass is still on the four sensor loose in the 90 degree in lower it was submerged but do not let it touch the bottom record the weight of the masses in water rounded to the hundredths place so now I'm going to take these loosen the 90-degree clay water and me will start with the 200 Brooklyn I know that's in the water so let's see what the weight of this is in a water now see if it's the same as before which was a 2.00 play constant again see what it is looks like it went down some it's 1.75 now so back to the lab 1.75 now we're going to replace it with the other Maps income is the 500 make sure it's not touching the bottom and now let's see if this one is lighter now that it's in the water it was 4.95 before sun will come up here and collect please see a constant force that's good see what I mean is yet went down the meeting is now 4.37 so here on the lab 4.37 which Mass lost more weight so kind of do a little subtraction see which one loses more weight and why do you think that one lost more weight none of the back now we're going to determine how much the weight of water that was moved was we're going to do this by a method that was similar to what was in the notes we find volume and then from volume we X density and then after that we'll get mask way to find weight by doing W equals mg so first we have to find the volume of these two cylinders said to do that we're going to use a beaker or any another graduated cylinder that is already filled to a level with y might be hard for you to read here see the water level for you it is at 350-5560 are you 25 30 35 36 it's about it 336 then what we do is we're going to lower the mass instead of water the water level goes up equal to the volume of the masks that we put in there okay so now I have to get a now that the mass is down in there in the water the water level has gone up married what it is it look like it's about 3 60 to 3:36 starting volume was 336 and the ending volume was 360 so we can subtract and find out the volume now of the object that the other thing is the volume of 2.5 kg so again can I get a beginning level looks like it's gone down a little bit it's like it's now on 335 so here starting volume to the other one 335 and now put it in the water level rise and that's the volume of our object okay water level has gone up it is 3 350 375 looks like about it's up to 3 95 is 1 below the 495 so that would be recorded right here now what you going to do track those to find the volume of the object and then what you're going to do is you're going to take the milliliters of water displaced the answers from up here is conversion factor which is based on the density of water every thousand mL of water contains one kilogram of matter so take how many milliliters you have X this conversion factor now instead of density is more like a conversion factor to go from milliliters to kilograms but this only works for water if we wanted to work for other things we have a different number but stopped and that would be based on the density so then show your work find the mass and then write the kilograms of water kilograms of water and then you can find the weight of water that should be similar to when you subtracted the things on sideline as to what you got for the Los hopefully this master this way water that's moved is similar to this weight that's lost which is the buoyant force

Uploaded by Brian Benz.

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archimedes principle lab

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