BeContented:

Wah. Still got people update.

WOWee, you very good boy/girl. My son gave me a ring just to tell me he's going off to play (cos I specifically instructed) , totally excited & can't wait. Cannot even spare a sec more to update anything.

I'm a girl d: My class organised a party on Friday, we're gonna have fun since it's the end of PSLE So we're not really playing today, we're just on Facebook :imcool:

Hey, student here


Compo topics were pretty fine.
命题 - 经过别人的协助，你达到了目标
完成文章-学校的活动刚结束，你回到家，发现你有很多新电邮，全部都是同一个人写的……
Something like that.

Paper was okay.

fantasy1:

HI


How abt section (B) qn
Something abt the type of colour used for photosynthesis. For Part (C) when they removed the water plants, what observation will the person see to ensure result at part (B) is correct?

I'm not sure, but my answer was that he would observe about an equal number of fishes in each section when the water plants had been removed.

RVHS:

thesjarox:

[quote=\"vaidyanathan padmini\"]How about friction question from McQ.....

My dd's answer is only C as friction opposes motion...
Only the box in c is moving so it should have friction

Confirmed with teacher-A,B and C.
Friction also acts on stationary objects. That's why forces have to overcome the friction before being able to move the object. Also, if there were no friction acting on an object,the object would glide across the surface, like ice, and would never stop.
Thus, A is also correct.

The force of friction is always exerted in a direction that opposes movement or potential movement between the two surfaces,
For B: Potential movement
For Movement
For A: non
So answer should be: B &C[/quote]
My answer for this question is (4) A, B & C. I thought about the surfaces in contact since if there was no friction the wooden block would be sliding around instead of remaining stationary.