Some Tips (1 Viewer)

helper

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What is crossed out is not marked in Physics.

The space provided is an indication of what you should answer.
If you are writing a lot more, than you are either writing a lot of irrelevant information or have very large writing.
The only exception to this with some calculations, where it is expected for you to split the answer into columns. Where you do this, make sure you rule the columns up so your equations don't roll into each other.

If the Biology paper is an indication, then they are trying to limit your answering space by putting restrictions on you answering style. If the answer asks you to complete a table and you put information outside the table or do not rule up an enclosed table, you may lose marks.

Success one is comprehensive answers rather than exemplar answers or answers required to obtain full marks.

The paper is marked by science teachers not English teachers
The teachers will be looking for you to answer to the verbs but do not expect essay style answers.
Use tables, diagrams, dot points, equations to answer the questions.
What you might consider incidental information, might give you a mark. Eg an arrow on a diagram, showing centripetal acceleration and centripetal force going towards the centre.

In an assess question, make sure you have a clear opinion, don't just imply this. It doesn't matter where you put it.
The Biology paper has indicated you might have to account for things like reliability and validity. If it says account, it wants you to state reasons for. So you need to say why you repeat experiments, control experiments.

In compare/contrast it is fine to use table but ensure you somewhere say if there are the same or different features. It is not good enough just to list the features.

Drawings
If you are asked to draw something, make sure it is a drawing not a sketch. Use a ruler and ensure there are no gaps where there shouldn't be, the labels have lines that touch the thing you are talking about. If you have vector arrows, ensure they are the correct length, if you are talking about two things with the same magnitude or one is larger than the other.

A second wrong line will be included in your answer unless you clearly indicate its not. That is why it states to use pencil in diagrams, so you can remove any wrong lines.

Laws versus Theories
Remember laws are used to describe what happens and by themselves cannot explain what happens.
Eg q19 2002.
Lenz's law can describe which end is going to be negative but you needed to go into why there was an induced potential difference to explain it.

Underline Important Bits of Answers
Underline and label important bits of information like opinions, judgements, criteria and mathematical support.

Mathematical Answers
Always include all your working steps, including your equation and all substitution.
Write down your conversion of units.
Always include units in your answer. Even if you can't remember the correct SI unit, work out a derived SI unit based on the equation you used.

Unless the question specifically says magnitude, ensure you include a direction for any vectors.

If an assess or evaluate question, says to have mathematical support, then a mathematical formula may be enough, so even if you can't work out how to do a questions, an appropriate formula and opinion may be enough to give you 50%.

Skills
Remember to look at Section 9.1 of the syllabus. This is examined to the same level as the other syllabus sections.


Graphs
It will be very strange if you have to join the dots in a Physics exam. So unless you have a clear reason don't. Draw a line of best fit or curve of best fit.

Make sure your data points can be clearly seen along with your line of best fit. Do not do this by making large blobs. Either mark your data points with crosses, centred on the point or do a point and then draw a concentric circle around it, making sure this is clear what you have done.

A line of best fit is a single line, it is not a series of lines or short connected lines. Use a ruler.

If you are told to use a graph, never just use data points from the table. Clearly show, where on the graph you have used from your line of best fit. If you can use the gradient, instead of a single data point, then do as that is what is expected. When you do this, use as much of the graph as possible, not two points right next to each other.

Markers are Human
They are not interested in esoteric points, but if these points are wrong, then you won't end up with full marks. So stay inside the syllabus and don't use extensions that may or may not be correct.

They do not have access to the internet, when marking, so if one of the other markers do not think there is value in an alternative answer, it is not likely to be checked. This is also why it is unlikely to be asked to name an Australian scientist but it is possible they will ask you about how you went about this.


Read the hints from the herald 2004

http://www.smh.com.au/articles/2004/06/02/1086058902690.html

I will try to write a bit more up later, or if you have any questions.
 
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Haku

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yes. first to post.

love u helper.

really helpful, and just as you promised too. so thanks alot

EDIT: question. when you said underline important words and stuff how do you mean? i was never taught to do this and do not know how to. is it that important?
can you please give an example
 
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jake2.0

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this is a pretty stupid question; if they ask 'why did you repeat the experiment?' do you just say 'because the chance if an error repeatedly occuring is less...'?
 

serge

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jake2.0 said:
this is a pretty stupid question; if they ask 'why did you repeat the experiment?' do you just say 'because the chance if an error repeatedly occuring is less...'?
to get rid of one-off errors, if your entire approach is wrong no number of
experiments will make it accurate or reliable
 

Haku

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no. it is because it make the result more valid. so if you get similar results in doing the experients many times the results are more valid. by doing multiple times accuracy is also improved. Also the mean can be used to further find a results that give more accuracy. the reliability is also improved.
 

Captain Gh3y

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nosadness said:
no. it is because it make the result more valid. so if you get similar results in doing the experients many times the results are more valid. by doing multiple times accuracy is also improved. Also the mean can be used to further find a results that give more accuracy. the reliability is also improved.
As far as I know, if they ask for "validity", that means controlling variables, whereas "reliability" is repeating to eliminate error and improve accuracy of results.
 

Haku

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i dun think so. cause being valid mean the hyposis is proved by the result. but doing the experiment many times and getting same results make it more valid for that hypothesis. of course it also improve reliability

EDIT: the result is valid when the way the experiment is performed and undertaken can be used to test the hypothesis. so by repeating and getting similar or accurate results could further justify the validity of the result and experiment.
 
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Haku

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does anyoneelse underline important words and stuff in there answer?

what exactly do u underline
 

jake2.0

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so its ok to write in dot points? i always thought that it had to be in sentence form
 

serge

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nosadness said:
no. it is because it make the result more valid. so if you get similar results in doing the experients many times the results are more valid. by doing multiple times accuracy is also improved. Also the mean can be used to further find a results that give more accuracy. the reliability is also improved.
yeh, i was talking about something else

If you begin with a valid experiment then yes repition will help
but its better to get someone else to repeat the experiment
as your own personal habits wont affect it

you might think your results are accurate but you might be
doing something wrong every single time
got that from the success 1 book
 

serge

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jake2.0 said:
so its ok to write in dot points? i always thought that it had to be in sentence form
depends on if its a 2 or a 7 marker
ones with heaps of marks want you to be logical and succinct
 

Haku

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serge said:
yeh, i was talking about something else

If you begin with a valid experiment then yes repition will help
but its better to get someone else to repeat the experiment
as your own personal habits wont affect it

you might think your results are accurate but you might be
doing something wrong every single time
got that from the success 1 book
but accuracy and validness has nothing to do with each other. the experiment can be totally invalid to prove a point when it is accurate, where each repetation give u the same result. reliable is where the results are similar.

for example the phy paper for CSSA trials 2005 gave a question on that transformer. they ask if the result is valid. the experiment is valid but the result is not. so by repeating the experiment and making minor changes the validity increases
 

serge

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nosadness said:
but accuracy and validness has nothing to do with each other. the experiment can be totally invalid to prove a point when it is accurate, where each repetation give u the same result. reliable is where the results are similar.

for example the phy paper for CSSA trials 2005 gave a question on that transformer. they ask if the result is valid. the experiment is valid but the result is not. so by repeating the experiment and making minor changes the validity increases

yes, i was talking about different things
ive already mentioned this, did you read my post?
 

Haku

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serge said:
yes, i was talking about different things
ive already mentioned this, did you read my post?
of course i have. are u accusing me of not listening to you?

well if you are than ur wrong. but guess we kinda agree now don;t we?

so serge, do u underline key words when writing out an response?
 

helper

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nosadness said:
when you said underline important words and stuff how do you mean? i was never taught to do this and do not know how to. is it that important?
can you please give an example
Eg. If doing a calculation, underline where your final numerical answer is. At the end of marking, you may have the correct answer but made an in error in your working. Because of the speed the marker has to keep up, they may end up giving you the marks, because they don't look for the error.

Assess question:
Write clearly in the column, Assessment: This shows the marker where you are making you assessment, so even if the assess statement is weak, there is no doubt you are assessing.

Or if a question requires a link. Underline key words like lead to, caused etc.
Most cases it won't make a difference but it can in some circumstances.
 

helper

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serge said:
to get rid of one-off errors, if your entire approach is wrong no number of
experiments will make it accurate or reliable
And, if there are random errors, these are averaged out, so your final result is more reliable, even though individual results are not.
 

Haku

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but for those assess questions its kinda hard to include the word in there. cause normally u say something like "therefore..." "consequently..." so it shows ur judgement. or do you mean to put in the advantages and disadvantages and put in "assessment:..." and write what u think is better?

and what about evaluate questions?
 

helper

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jake2.0 said:
so its ok to write in dot points? i always thought that it had to be in sentence form
The confusion came in 2001, where marking guidelines said
"Presents the information coherently"

The marking group took this to mean, in paragraphs. Since then, this has been clarified and it means information must be in a logical sequence and one point lead to the next.
 

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