Tuesday, February 03, 2009
ah, ppl saying physics teacher too hard to understand during mentoring today...... really meh? still can wat -.- i mean if you had understood the basics of physics during the last two years, this is juz one with more symbols(which you can ignore), and algebra........ wat is so difficult? then theres someone sayign that after all the cheem stuff the teacher said wont come out in exam, then her feedback was not in exams teaching for wat, confusing us somemore, zzzz learn for exams only ar, and its not confusing, it s juz that you are trying to cram everything(which is not needed, its nvr needed) the teacher is juz prooving a formula, all you hav to do is to know ROUGHLY the method he use....... and understand y the formula is true zzzz
some things you should do about physics
1) Dun mug(too much) somethings you should rmb, but when you rmb the basics with understanding, the complex is common sense
Like there was this section about how fridges work, basically the coolent is compressed and thus become a liquid, the energy pushing the particles apart now becomes heat, the heat is lost through the cooling coil, when it is uncompressed it evaporates and thus removes heat. See nid to cram meh, you juz understand how the energy is used can le
2)Dun rmb stuff in definitions
English is a great tool when it comes to communication, it is sophisticated enough for the specificness required during communication, BUT in physics, it is too complex and can mess you up, there for juz rmb in units, like acclearation, definition is the change of velocity during a given period of time and velocity is the displacement of an object during a period of time, so fregging complicated juz rmb m/s 2 you wan definition juz look at it and work out....... and that also makes it much easier for the next point
3)Do not rmb the excat equation of wat * wat = wat or wat /wat = wat, seriously,there was this exam where is forgot how the equation regarding wavelenth, frequency and velocity, then i thought
v=m/s
frequency = 1/s
wavelenth = m
therefore, wavelength*frequecny =velocity
to find any other thing juz swap them like numbers, as numbers are simpler than words......
for example if you draw a graph of v over t and i tell you the area it occupies is the displacement
if you understand by definition, its gonna take a while for you to understand, if you rmb v as m/s and t as s, then you noe, m/s * s =m which is the unit for displacment, zzz same with the equation, do on both side and you end up wif the samething.....
"Er I dun nid to tell you the 7/5 right...?" -Mr Ng, com sci teacher, telling us in C 7%5=2(remainder)
yea, the stuff above shld be common sense, if you really dun noe i also dun noe how you can pass physics......