Search found 40 matches

by tutor76
Sat Oct 31, 2015 10:57 am
Forum: Secondary Schools - Academic Support
Topic: Lower Secondary Science
Replies: 459
Views: 202805

Re: Lower Secondary Science

The new trend in chemistry is prelearn Sec 3 chemistry .cheers
by tutor76
Thu Jul 10, 2014 3:13 pm
Forum: Secondary Schools - Academic Support
Topic: O-Level Physics
Replies: 91
Views: 48170

Re: O-Level Physics

[quote="Kafer"]May i know how to solve this qn?
by tutor76
Thu Jul 10, 2014 3:13 pm
Forum: Secondary Schools - Academic Support
Topic: O-Level Physics
Replies: 91
Views: 48170

Re: O-Level Physics

May i know how to solve this qn? an unknown translucent liquid has a reflective index of 1.75 what is the maximum angle of refraction within the liquid if a neam of light passes fr air into the liquid? A. 32.7 b. 34.8 c. 55.2 My personal opinion is that this question is set unfairly ,its possible t...
by tutor76
Thu Jul 10, 2014 3:01 pm
Forum: Secondary Schools - Academic Support
Topic: O-Level Physics
Replies: 91
Views: 48170

Re: O-Level Physics

As the formula ,refractive index = 1/sin c ,where c is the critical angle

So critical angle is 34.8

So 90 degree minus 34.8 degree is 55.2 which is choice C.

Cheers
by tutor76
Sun Jul 06, 2014 5:12 pm
Forum: Secondary Schools - Academic Support
Topic: Lower Secondary Science
Replies: 459
Views: 202805

Re: Lower Secondary Science

Have already pm you.thanks
by tutor76
Sat Jul 05, 2014 4:17 pm
Forum: Secondary Schools - Academic Support
Topic: O-Level Chemistry
Replies: 178
Views: 74402

Re: O-Level Chemistry

Having hard time preparing for o lvl chemistry? No problem .with an experienced tutor Collin Wong will guide you to your dream grades .interested please pm me or email to classicalerhu@gmail.com for more info .cheers
O lvl Chem and Physics Specialist
by tutor76
Fri Jul 04, 2014 1:44 pm
Forum: Secondary Schools - Academic Support
Topic: O-Level Chemistry
Replies: 178
Views: 74402

Re: O-Level Chemistry

Something for others to try :)
Image
by tutor76
Tue Jul 01, 2014 2:33 pm
Forum: Secondary Schools - Academic Support
Topic: Lower Secondary Science
Replies: 459
Views: 202805

Re: Secondary School Science

Set 2 !

Image
by tutor76
Tue Jul 01, 2014 2:24 pm
Forum: Secondary Schools - Academic Support
Topic: Lower Secondary Science
Replies: 459
Views: 202805

Re: Secondary School Science

Another set of comb chemistry for student to
try ! Image
by tutor76
Mon Jun 30, 2014 1:31 pm
Forum: Secondary Schools - Academic Support
Topic: Lower Secondary Science
Replies: 459
Views: 202805

Re: Secondary School Science

Copper is lower in the metal reactivity series ,therefore it does not react with acid ,aluminium is higher in the metal reactivity series ,will react to form aluminium salt ,bad for human health .