Phys1901 (1 Viewer)

[KeypadSDM]

So, who else is screwed for the test during the prac this week?

And for those that have done it. Was it hard?

 

[freaking_out]

Originally posted by KeypadSDM
So, who else is screwed for the test during the prac this week?

And for those that have done it. Was it hard?

it was pretty hard man- not prohibitively hard- but if u haven't studied u'll find it difficult!

 

[KeypadSDM]

As in if we do the test in the back of the lab book, we'll be fine?

 

[xiao1985]

hard to say really... the questions are not hard... just trickey i say...

 

[freaking_out]

Originally posted by KeypadSDM
As in if we do the test in the back of the lab book, we'll be fine?

yeah, its just like what xiao said- tricky.
and wif the lab skills test- just do the sample test and u should go fine (since its an open book test!!)

anyways- if ur gonna have the same test for the progressive test, then here is what was in ours:

we had a question similiar to that example the lecture showed us- in where u put the tennis ball on top of the basketball and u bounce them together- and u get the tennis ball to go very high...yeah, just look ova how they did the working out for that.

also in the same question- two objects collide into each other in an elastic collision- and u had to work out da velocity and stuff.

and lastly there was this question abt. the tension in a rope when u hang a weight on it....so yeah, thats just a brief guide if ur having the same test as us.

 

[KeypadSDM]

Ahh yes, the tension in a rope with a mass. If it's on a rotating wheel, the tension isn't mg.

 

[freaking_out]

Originally posted by KeypadSDM
Ahh yes, the tension in a rope with a mass. If it's on a rotating wheel, the tension isn't mg.

that reminds me- there is this rotational motion question:

well its like this circular disk (like a coin) is rotating horizontally
and then u drop a piece of gum at distance r from the centre of da disk and then u gotta say how the motion is affected when u drop the piece of gum.

 

[KeypadSDM]

Wtf?

That doesn't even make sense.

Are you saying the angular momentum of the disk is horizontal? Or the disk itself is horizontal?

 

[freaking_out]

Originally posted by KeypadSDM
Wtf?

That doesn't even make sense.

Are you saying the angular momentum of the disk is horizontal? Or the disk itself is horizontal?

well its parallel to the ground when its rotating...anyways i think i said too much- and xiao might get pissed off at me or something.

 

[xiao1985]

Originally posted by freaking_out
well its parallel to the ground when its rotating...anyways i think i said too much- and xiao might get pissed off at me or something.

>.<' u bet i am!!! pffttt

lolz... nah... keypad's smart... he top it even if u dun tell him... =)

 

[KeypadSDM]

Originally posted by xiao1985
>.<' u bet i am!!! pffttt

lolz... nah... keypad's smart... he top it even if u dun tell him... =)

Actually no, I guesstimated the weight of my head at 20 kg.

 

[freaking_out]

Originally posted by KeypadSDM
Actually no, I guesstimated the weight of my head at 20 kg.

LoLz i got 11 kg for that.

 

[xiao1985]

lolz... keyspad, i sorta believe his head is around 20 kg... =p

edit: freaking_out: u too, cuz cuz ^^

 

[KeypadSDM]

And then when they mark me wrong, I'm giving them crap because my head DOES have a mass of 20kg (when you include ego and whatnot).

 

[xiao1985]

Originally posted by KeypadSDM
And then when they mark me wrong, I'm giving them crap because my head DOES have a mass of 20kg (when you include ego and whatnot).

??? r u sure it is not 1:1 in weight to the rest of ur body??? =p

 

[Adaran]

anyone done the semester 2 circuits test?

 

[xiao1985]

yea, hasn't every one done it???