[J2] Lesson 36 (Gravitation A Questions + Statistic Consolidation + Periodic Table)

[J2 Physics PMCians] Gravitation (Grade A) Revision


What we did in 2 hours:

This week, we reviewed Grade A questions on Gravitation. Notably, we are prepared that this topic can be combined with other topics such as :

1) with Circular Motion – e.g Satellite questions, binary stars

2) with Conservation of Energy.

Binary Star – Gravitational Force provides Centripetal force to move in a circle

What you take home:

Gravitation Grade A Test 2 (for reference only)



Gravitation MCQ – Compiled Prelim 

Please download and print for your personal revision. The answers and working are at the back:   



Gravitation Structured questions – Compiled Prelim 

Please download and print for your personal revision. The answers and working are at the back:   


Special Mention:

Next lesson, we move on to Grade A questions on Electric Field


Till we meet again, may you use this September holiday purposefully and fruitfully!


From you friendly tutors,

Mr Sim & Mr Kwok 🙂

[J2 Maths PMCians]


What we did in 2 hours:

Statistics Consolidation was plenty of fun wasn’t it! These recent questions from MYE and Prelims were chosen for the applied parts, which we noted to be mathematically straightforward, but tricky in setting up.


Do note how we break up the question into simpler parts based on keywords and focus on what the question is really asking for. Additionally, clues will always be given as to what type of distribution is being used (fixed total size? classified into yes/no?) and we will use that to our advantage!

What you take home:

Worked solutions for the final two questions are linked here:



Weekly Quiz: Quiz I and Solutions for Quiz H have been updated into the link.


Special Mention:

Back to Pure Math! Grade-A questions will begin this week with Complex Numbers.


See You and Stay Healthy!

Your Friendly Math Tutors

[J2 Chemistry PMCians] 


What we did in 2 hours:

This week, we focused on the chemical properties of Period 3 oxides and chlorides, ensuring that you understood the chemistry behind their reactions. This is a notoriously troublesome chapter due to the sheer amount of information you need to recall. Put in the hard work to remember them, and I am sure you will be rewarded well.

What you take home:

The solutions to the Homework to Electrochemistry is found here:


Special Mention:

Next lesson, we will cover the chemistry behind Group 2 and 17 elements.


See you and work hard!

Mr Leong


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