2011 PSLE Discussions and Strategy

[stickyz]

hyperkiasuperson:

Bigteddy:

[quote=\"stickyz\"]Anyone can remember booklet B the one about fan and air conditioner one?

a) What will happen to Pin Q after switch S2 is switched on? Why? (I totally forgot the question rough idea) :P:P

Help!! What did all of you write?

It would move towards the iron rod.Magnetic arrtaction has acted on pin when the rod became a temporary magnet.

:thankyou:

Wrote about the same as you.

What about b)Why does the fan off when Switch S2 is switched off? (forgotten) Thank You![/quote]


I wrote the fan switched off as there is a gap in the circuit and electricity cannot flow.[/quote]

:thankyou:

[papaya99]

My ans is : when S2 is closed, W became an electromagnet and attracted Q, opening the circuit and hence the fan is switched off.

[Junglezoo]

Ms tay:

xDiorama:

I put square and for the mcq booklet question 4 is carbon dioxide check le :


My ds teacher say is water is correct.

Hi, ms tay. Based on my judgement and some online searching, I think the answer should be carbon dioxide as there is less carbon dioxide given out than oxygen. Thus, there would soon be a lack of carbon dioxide. Besides, water could not be used up that quickly.

[Guitar]

ProteX:

hashroop:

[quote=\"stickyz\"]Anyone remember the last Question for booklet A? :scratchhead: :scratchhead:

yes i need to knw too as DS left the answer out

It's about some springs right, probably (1).[/quote]
My dd say-it's about 4 materials(strings) and the weight hung on them. Which string stretches the most,2nd most,3rd most and the least...

[stickyz]

Guitar:

ProteX:

[quote=\"hashroop\"]Anyone remember the last Question for booklet A? :scratchhead: :scratchhead:

yes i need to knw too as DS left the answer out

It's about some springs right, probably (1).[/quote]
My dd say-it's about 4 materials(strings) and the weight hung on them. Which string stretches the most,2nd most,3rd most and the least...[/quote]

Oh yes! Thanks a lot!! I also got (1)..

[moirwong]

q43 sand-pond question. Is the water polluted? Why?

[Ms tay]

Junglezoo:

Ms tay:

[quote=\"xDiorama\"]I put square and for the mcq booklet question 4 is carbon dioxide check le :


My ds teacher say is water is correct.

Hi, ms tay. Based on my judgement and some online searching, I think the answer should be carbon dioxide as there is less carbon dioxide given out than oxygen. Thus, there would soon be a lack of carbon dioxide. Besides, water could not be used up that quickly. [/quote]But the plant culd have sped up respiration.

[urbanemale]

Vianne77:

I just want to clarify with all of you, is it true that there is more weightage on English and Chinese? My friends and their mummies say that English+Chinese=200%, Science is 50% and Maths is 50% as well...

Oh yes, I want to ask about question: 'Which set-up should he use as a control'
What did you put?

It is not true that the weighting for English and Mother Tongue is greater than Maths and Science.

[Guitar]

Verysuperkiasu:

Smurfiees:

May I ask what did the psixes put for the shadow qn ? some put square , some put circle. May I know which one is the correct one ? And yes , mcq was v.easy . booklet b got a lot of comparisons .

ds put square. what abt the rest?

dd put circle.but 3-5 of her friends put square.

[Verysuperkiasu]

ngbrdad:

How did you manage to see the question ?

based on my son's memory....he drew out the pic for me.

light source--->small square cardboard---->metal ball--->bigger square cardbord but same height as the metal ball--->screen (all these are in side view profile). His answer is a square - (the square blocks the metal ball since they are of the same height).