Using 3U Projectle Motion for Physics?

[fkkiwi]

Hey all,

What's the consensus with using 3U projectile motion techniques to solve projectile motion Qs in Physics? I find the 3U method a lot easier and safer to use than memorising the random formulas in the HSC Physics syllabus.

So I'm just wondering if I can use 3U Projectile Motion methods in HSC Physics papers? Will I be marked down for using 3U instead of the formulas in the Physics syllabus?

[S200]

Although I can't be 100% sure, being a VCE student rather than HSC, I think that it is physics formulas  that should be used in physics rather than mathematics.
Certain things may be acceptable to cross over, such as re-arranging with algebra, some small calculus etc. 
But I reckon that Newtons equations cover projectile motion pretty good, so why would you need Extension math formulas to calculate stuff?

[jamonwindeyer]

Hey all,

What's the consensus with using 3U projectile motion techniques to solve projectile motion Qs in Physics? I find the 3U method a lot easier and safer to use than memorising the random formulas in the HSC Physics syllabus.

So I'm just wondering if I can use 3U Projectile Motion methods in HSC Physics papers? Will I be marked down for using 3U instead of the formulas in the Physics syllabus?

I agree with above! Essentially you won't get marks for methods that aren't taught in the HSC course - So even though you might get the same answer, say you made a mistake somewhere so the final result is wrong. The marker goes, "Okay, where can I give them marks for working." But they don't know your working because it isn't HSC Physics content. So they can't give you anything.

Remember you will get a formula sheet you can substitute into on the day, so no need to memorise anything!

[owidjaja]

Hey all,

What's the consensus with using 3U projectile motion techniques to solve projectile motion Qs in Physics? I find the 3U method a lot easier and safer to use than memorising the random formulas in the HSC Physics syllabus.

So I'm just wondering if I can use 3U Projectile Motion methods in HSC Physics papers? Will I be marked down for using 3U instead of the formulas in the Physics syllabus?

Hey there,
I agree with the above. You can use 3U Projectile Motion and they'll give you the marks if you get the correct answer, but if you get the answer wrong, you'll get a zero instead of the 1 or 2 marks you can get for working out.

Plus, you get a formula sheet so no need to memorise!