Physics Practical ( Paper 3 ) Tips :)

[[Spy]]

- Read through past paper experiments, get an idea of what the questions come like.

- when taking values off a stopwatch for example, you should write the timing to the resolution of the stop watch, meaning if the time recorded was 00:06:42, then you write it was 6.42 and not 6.4, even if it was 00:06:00, you still write it as 6.00. these are called RAW VALUES.

- when doing calculations involving raw values, you should always keep them to the same significant figures are the raw values, and yes its very important, examiners care alot about these stuff in practicals unlike other papers.

- when doing your axes values, dont just think that if you get all your readings within the range then you managed to get a good axes no! you need to make sure than each tiny square will give you a value easy to deal with for example 0.2 or 0.15 even but not something recurring like 0.3333333 for example.

- when drawing graphs, make sure your curve/line covers more than half and preferably 80% of the graph provided.

-when plotting a graph us X and not a dot with a circle around it.

- never ever has it been obvious that you need to draw a curve, and most most most of the times its a line of best fit.

- your line of best fit has to go through the most points and should the same number of points on both sides and they should be equidistant from the line.

- when finding gradient, it is preferable if you use one of your plotted points which the line cuts, and therefore always try to make that the last and first points are on the line

- if for example your asked to take readings for a pendulum swing at a range of length from 0.3 to 0.6, then YOU SHOULD TAKE A VALUE SLIGHTLY LOWER AND A VALUE SLIGHTLY HIGHER like 0.25 and 0.65.

- when constructing the table, you should always have the name of the reading and its unit for example time/s or length/m

- also when doing your table record two readings, name them t1 and t2 for instance and then find the average. and use the AVERAGE when plotting.

- if you are asked to find a thickness of a wire for example, measure its thickness at diffident places and take the average.


thats what i have
i hope you find it useful and if anyone has anymore please share them

good luck

[MAF]

nice,man.
+rep. 

[[Spy]]

your welcome

[sabrina]

 thanks a lot. really helpfull. 

[[Spy]]

my pleasure

[Twinkle Charms]

- if for example your asked to take readings for a pendulum swing at a range of length from 0.3 to 0.6, then YOU SHOULD TAKE A VALUE SLIGHTLY LOWER AND A VALUE SLIGHTLY HIGHER like 0.25 and 0.65.


i didnt get this one? :S

[[Spy]]

lets say the expirment involves taking time readings for how long it takes the pendulum to come to rest, then they may tell you to repeat the experiment with different lenghts of the wire holding the bob, for example 0.3 to 0.6, then start with values a bit lower than those

get it?

[Twinkle Charms]

ohh ohkay...buh why do we take .5 lower n higher than the range..?? to get set of six readings?

[[Spy]]

no, you can take any six readings between, but because thats it, you should take a bit lower or at least take the values themselves so that they are included, and you could take less to see it how it compares with lower values

[Twinkle Charms]

thank you =)

[XaM!!]

Hey s3 guys my sir said that 2 ques r coming, i can tell buh if u the moderatrs allow?

[[Spy]]

for variant 1, its a pendulum question and a long electricity question.

[Twinkle Charms]

n i heard its sumthin to do with ball slidin down an inclined plane...

[XaM!!]

Wat about varient 2?
@spy acc to my kolege news any 2 of the folowing r coming
--> electricity
visosity, its somethng about oil n water
or, pendulum

[vserian]

what u guys doing pp 33 or 34