VCE Physics Question Thread!

[chantelle.salisbury]

Hello
i was just wondering what is an achievable goal for physics. i have an average of round about 80% and not too sure of the ranking but probably somewhere in the high middle. what score round abouts could i achieve if i dont loose too many marks on the exam?
thankyou

[princessofpersia]

hey ya all!!

I wanted to ask something in regards to the 2017 VCAA sample exam. in q14 they say that measurement were taken with a metre ruler, 'graduautesto 5 cm intervals and held by hand'

so would the uncertainity by 2.5cm? [half of the smallest unit on the ruler (5cm)]

[Bri MT]

Hello
i was just wondering what is an achievable goal for physics. i have an average of round about 80% and not too sure of the ranking but probably somewhere in the high middle. what score round abouts could i achieve if i dont loose too many marks on the exam?
thankyou

Are these company SACs? Which company?

Have you done a prac exam? What score?

hey ya all!!

I wanted to ask something in regards to the 2017 VCAA sample exam. in q14 they say that measurement were taken with a metre ruler, 'graduautesto 5 cm intervals and held by hand'

so would the uncertainity by 2.5cm? [half of the smallest unit on the ruler (5cm)]

I would think that it would be +/- 1.25cm seeing as it is analog  but I could be wrong...

[princessofpersia]

I would think that it would be +/- 1.25cm seeing as it is analog  but I could be wrong...

Why 1.25?
I thought analogue was 1/2 of smallest division, so 5/2, in other words
+/- 2.5cm?

I think I am missing something.

[Bri MT]

Why 1.25?
I thought analogue was 1/2 of smallest division, so 5/2, in other words
+/- 2.5cm?

I think I am missing something.

No, I've checked my notes and you're right.

My confusion was coming from the fact that with an analog instrument you can state the value as being on a marking or halfway between two markings,   however the uncertainty is still half the distance between two markings, not a quarter of the distance

Sorry for the unnecessary confusion

[TooLazy]

Recently I have been doing some of the past vcaa papers but because the sections are split up over two exams, and some sections arent relative anymore, I have been having trouble working out what a good time indicator is.

For example if I do VCAA 2012, exam 1, part 1 of section A ( so just motion)
how long should I take. Ive been generally averaging 35-40 mins, is this good or bad?

[Syndicate]

Recently I have been doing some of the past vcaa papers but because the sections are split up over two exams, and some sections arent relative anymore, I have been having trouble working out what a good time indicator is.

For example if I do VCAA 2012, exam 1, part 1 of section A ( so just motion)
how long should I take. Ive been generally averaging 35-40 mins, is this good or bad?

This year's exam is 130 marks. We only get about 150 minutes, so that's about 1 minute, 19 seconds per question. So, first of all, count how many marks there are in the "useful" section, and then multiply it with 1.15 (which is 69 seconds). That should indicate the amount of time you should be spending upon that section.

[KiNSKi01]

How can you calculate acceleration when you aren't given mass. Or is there another way of answering question 71 without F=ma?

[Syndicate]

How can you calculate acceleration when you aren't given mass. Or is there another way of answering question 71 without F=ma?

2005 exam says that the mass of the rocket is 0.2 kg. It is probably not listed here, as it is a follow up question.

[KiNSKi01]

So there is no other valid method of working this out if you aren't provided with mass?

[Sigma]

Work out the sine degree and then a - sin * force netwton then you can use m = F/A and your done.

[chantelle.salisbury]

hello..
just wondering whether there are any hints or tips on how to study for physics? i know to do heappps of questions but should i be relooking over notes etc before i do this? i dont know..... glad of any help!

[Bri MT]

hello..
just wondering whether there are any hints or tips on how to study for physics? i know to do heappps of questions but should i be relooking over notes etc before i do this? i dont know..... glad of any help!

Making a reallly good summary sheet can be a good form of revision

[TooLazy]

What SS should you expect with a 120/130 on the exam, with good sacs/rank

[KiNSKi01]

Making a reallly good summary sheet can be a good form of revision

When you are required to make a cheat sheet anyway for the exam, is it still worthwhile making a separate summary sheet?