[J1] Lesson 31 (Wave Motion + Techniques of Integration + Alkenes)

[J1 Physics PMCians] Wave Motion & How it’s Linked to SHM


What we did in 2 hours:

This week, we began our exploration of Wave Motion by examining these important aspects:

1) Details about Electromagnetic (EM) waves

2) Difference between Displacement-Distance and Displacement-Time graphs

3) Phase difference vs Path difference

4) Longitudinal Waves, and lastly

5) Intensity of Wave.

Transverse Wave (Difference between Particle Motion & Wave Motion)

Longitudinal Wave (Difference between Particle Motion & Wave Motion)

What you take home:

Wave Motion Daily Dose

Please download and print the Daily Dose for your personal revision. 

The answers and working are at the back:  


Special Mention:

Next lesson we will conclude our understanding for the topic of Wave Motion, by examining a phenomena called Polarization!


Till we meet again, stay safe and healthy!


From you friendly tutors,

Mr Sim & Mr Kwok 🙂

[J1 Maths PMCians] 


What we did in 2 hours:

Having picked up all of the Techniques of Integration, we put them into practice over a wide variety of questions. These included all basic formulae, standard forms, integration by substitution and integration by parts.

Keep practising to internalise what we have covered – how to recognise when to use which technique, and the most consistent and efficient ways to apply them.


What you take home:

The Daily Dose and Quiz solutions are linked here:


Special Mention:

We will be moving on to Applications of Integration this week, where we look at areas under graphs and Volumes of Revolution.


See You and Stay Healthy!

Your Friendly Math Tutors

[J1 Chemistry PMCians] Completing Alkenes


What we did in 2 hours:

We have completed all reactions of alkenes, namely

  1. The four electrophilic addition reactions + their mechanism
  2. Characteristic of electrophilic addition mechanism (Markovnikov’s rule & racemic product mixture)
  3. Mild and vigorous oxidation of alkenes + their products

What you take home:

The solutions to Everything you need to know series and selected structured questions for Alkenes are found here:


Special Mention:

Next week, we shall review vigorous oxidation of alkenes before moving onto Arenes.


Stay healthy and happy!

Mr Leong


We are pleased to inform you that you will be able to redeem a free ticket for your friend to attend lesson with you. You may redeem this ticket via your Student Portal, under Referral and Rewards. 

Take note:

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  • Redemption period strictly before 31 August 2020. See you!
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