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yes perpendicular to the thermometer but if you write in line to level of mercury that would be more accurate.
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yes perpendicular to the thermometer but if you write in line to level of mercury that would be more accurate.
For the second part, steam is evolving from the solution. This steam is pure, and has a boiling point of 100. this steam comes in contact with the bulb of the therm. and it record a temp of 100Is it wrong if its horizontal? And thank you
Oh and one more question.
If the boiling water temperature is 103 but the thermometer reads 100...is it because of the steam loss?
Is it wrong if its horizontal? And thank you
Oh and one more question.
If the boiling water temperature is 103 but the thermometer reads 100...is it because of the steam loss?
Thank you so muchFor the second part, steam is evolving from the solution. This steam is pure, and has a boiling point of 100. this steam comes in contact with the bulb of the therm. and it record a temp of 100
Thank youIt's because the water contained impurities. Impurities raise the boiling point of water/liquid.
But as the thermometer is in contact with steam in air and not water it reads 100 as steam is pure.
Because it's a distance time graphhttp://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s13_qp_42.pdf
In Q2 part b, why cant we say that ' total area covered under the graph will be the distance travelled by the student"? :/
Ohhhhhh how stupid of me ThankyouBecause it's a distance time graph
plz tell the features for 1 Responsiveness 2 Senstivity for themometer
if u hv notes plz provide
Yes.http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s05_qp_4.pdf
Question 4 (c)
Can i mention the two person method, like one drops, and the other operates the stopwatch?
Responsiveness is how quickly the thermometer reacts to the temperature change. In simple words, how quickly the heat is transferred from the object to the thermometer is determined by the thermometer's responsiveness. The responsiveness of the thermometer depends on how THIN the BULB of the thermometer is.
Sensitivity is how much the thermometric substance in the thermometer (e.g mercury) EXPANDS for a given change. E.g if the mercury in Thermometer A expands 5 cm for a change of 1 degree celsius, and Thermometer B expands 10 cm for 1 degree celsius, then thermometer B is more SENSITIVE than Thermometer B.
It's very easy to confuse these two. So make sure your concepts are clear. Also, responsiveness is not part of our syllabus. Range, Linearity, and Sensitivity are.
I'd say you read the syllabus, at least skim through it for a better preparation
Awesome12http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s05_qp_4.pdf
Question 4 (c)
Can i mention the two person method, like one drops, and the other operates the stopwatch?
Actually this introduces way more error than two people handling it. The human body is not very fast so you cant press the stopwatch at exactly the moment it falls. But if you have two students, one has his full attention on pressing the stopwatch. Thus less error is found.Awesome12
The issue of reaction time,late starting,early stopping and all the stuff exist when two people are used since both of them have different reaction times.
The best would be to drop it from a known height(shoulder level perhaps) and manipulate the stopwatch in your other hand. Reapeat thrice and take an average. This would be more accurate than using two people
Just checked the ms...Actually this introduces way more error than two people handling it. The human body is not very fast so you cant press the stopwatch at exactly the moment it falls. But if you have two students, one has his full attention on pressing the stopwatch. Thus less error is found.
a) 1. rub polyethene rod with wool(charge attained on rod)This is part of Physics Syllabus
-describe experiments to show electrostatic charging by
friction
- describe experiments to show the force on
a beam of charged particles in a magnetic field
how to prepare for thiiis?
Physics now! Can anybody give physics atp notes please please please?
attached it .. its very viral nowOk. Over with bio atm. NOW RELOAD PHYSICS ATP! Anyone having notes? Experiments specially. Btw a word of advise: Dont disscuss the paper. Whats done is done. It'll make you nothing but feel miserable. You'll feel as if you hadn't done enough. So get it over with! Now post physicssss!!!!!! Atp notes! Anyone???
ofcourse you can. but include this : student A says "go" and drops paper, immediately student B starts stopwatch .. reaction times can differhttp://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s05_qp_4.pdf
Question 4 (c)
Can i mention the two person method, like one drops, and the other operates the stopwatch?
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