2009 Physics Unit 3 Exam Suggested Solutions

[methodsboy]

hmm according to the solutions, i should get about low A+ to high A.

[dejan91]

Don't you hate it when you know you were thinking of the right answer but you didn't know it at the time? So you put the wrong one...Or is that just me?

[appianway]

I'm really interested in what the cut off for an A+ will be/how many 90s will be obtained. I presume that a lot of people will overestimate their marks because they don't know their answers to the MC off by heart, or will assume that they scored perfect marks on the explaining questions.

[TonyHem]

Lame.. I had the right answer for that projectile motion one and changed it >_>
That's what I get for trying something new on the exam lol

[methodsboy]

Don't you hate it when you know you were thinking of the right answer but you didn't know it at the time? So you put the wrong one...Or is that just me?

OMG yes!...i fcuked up that sum of all torques at P.....hgskja teity sa !

[NE2000]

I'm really interested in what the cut off for an A+ will be/how many 90s will be obtained. I presume that a lot of people will overestimate their marks because they don't know their answers to the MC off by heart, or will assume that they scored perfect marks on the explaining questions.

But weren't there just two explaining questions?

[appianway]

There were, but if people put down 2 points on one (rather than 4), then that's automatically a 88/90.. and so on.

[kenny17]

can anyone tell me exactly wat to clik to get the solutions??

[Damo17]

can anyone tell me exactly wat to clik to get the solutions??

http://www.itute.com/board/viewtopic.php?f=6&t=872

[TrueTears]

There were, but if people put down 2 points on one (rather than 4), then that's automatically a 88/90.. and so on.

2 points for what...?

[NE2000]

There were, but if people put down 2 points on one (rather than 4), then that's automatically a 88/90.. and so on.

2 points for what...?

For weightlessness question, 4 points for 4 marks.

[TrueTears]

There were, but if people put down 2 points on one (rather than 4), then that's automatically a 88/90.. and so on.

2 points for what...?

For weightlessness question, 4 points for 4 marks.

Teacher said for that question, 1 point = 2 marks.

[NE2000]

There were, but if people put down 2 points on one (rather than 4), then that's automatically a 88/90.. and so on.

2 points for what...?

For weightlessness question, 4 points for 4 marks.

Teacher said for that question, 1 point = 2 marks.

Oh well...all that means is that a lot of people might have overdone their explanations but it won't cost them anything as long as it's all correct.

[naved_s9994]

for q 8, AOS 1 - dont we use m(g+a)...= 720?
everyone including teachers said that.

[TrueTears]

for q 8, AOS 1 - dont we use m(g+a)...= 720?
everyone including teachers said that.

If you think about it intuitively, as you are slowing down in a lift, wouldn't you feel lighter? :X