Thinking [email protected] #2

JC Physics

[email protected] is a series of questions that we, as tutors feel that are useful in helping students think and improve their understanding.

Thinking [email protected] is curated by Aaron. More of him can be found here.

Assuming an object is moving in a circular motion in a polar coordinate system given by x = r \text{cos} \theta and y = r \text{sin} \theta. Can you derive the formula of the centripetal acceleration? Hint: look at one of the axes and think of the direction and what is centripetal acceleration

Thinking [email protected] #1

JC Physics

[email protected] is a series of questions that we, as tutors feel that are useful in helping students think and improve their understanding.

Thinking [email protected] is curated by Aaron. More of him can be found here.

Kepler’s Third Law states that the period of a planet’s orbit is directly proportional to the cube of the semi-major axis of its orbit. This allows scientists to calculate distances of planets in our solar system. Can you derive the equation using what you have learned in Motion in a Circle and Gravitational Field?

Physics@TheCulture #1

[email protected] #1

JC Physics

[email protected] is a series of questions that we, as tutors feel that are useful in helping students think and improve their understanding.

Thinking [email protected] is curated by Aaron. More of him can be found here.

Why study Physics?

I have questioned many students and getting answers ranging from “Just a subject that I have to take in A-Level” to “I do not know what else to take?”

It is not just a subject:

Physics can be seen as a ‘tool’ to enable you to be more logical and you practise and learn to question ‘Why’, which is an invaluable asset to many other jobs or careers

A student’s dad was having a good chat with me and he was a control systems engineer back in his younger years in The States for a good decade or so. Thereafter he went on to take an MBA and he is now an MD in a local bank. Even if you are not going to major in engineering, it can be a good training.

Helping out with the house:

You can of course repair and fix things in the house without studying Physics but if you know more about topics like pressure, forces, electricity and how things work, won’t it be awesome that you are more knowledgeable? It can be a general knowledge and it will help you out in life along the way when things are screwed at home.

It puts your maths to good use:

Lots of formulas? Well, they help physicists and engineers to understand the world we live in.

Becoming an Engineer:

It is a myth that only bankers are being paid well. Only the good bankers are well paid, similar to engineers. If you excel in the things you do, you will be rewarded. Engineers are not technicians. Yes, they can fix things but they innovate and SOLVE problems too.

A world without Physics:

You will not be looking at this now on your computer/laptop or mobile device literally. Engineers continuously apply Physics to push the frontiers of technology.

It is not just a subject:

Physics can be seen as a ‘tool’ to enable you to be more logical and you practise and learn to question ‘Why’, which is an invaluable asset to many other jobs or careers

A student’s dad was having a good chat with me and he was a control systems engineer back in his younger years in The States for a good decade or so. Thereafter he went on to take an MBA and he is now an MD in a local bank. Even if you are not going to major in engineering, it can be a good training.

Helping out with the house:

You can of course repair and fix things in the house without studying Physics but if you know more about topics like pressure, forces, electricity and how things work, won’t it be awesome that you are more knowledgeable? It can be a general knowledge and it will help you out in life along the way when things are screwed at home.

It puts your maths to good use:

Lots of formulas? Well, they help physicists and engineers to understand the world we live in.

Becoming an Engineer:

It is a myth that only bankers are being paid well. Only the good bankers are well paid, similar to engineers. If you excel in the things you do, you will be rewarded. Engineers are not technicians. Yes, they can fix things but they innovate and SOLVE problems too.

A world without Physics:

You will not be looking at this now on your computer/laptop or mobile device literally. Engineers continuously apply Physics to push the frontiers of technology.

Meritocracy? Junior colleges merger and its implications

Meritocracy? Junior colleges merger and its implications

JC General Paper, JC Mathematics, JC Physics

It’s pretty interesting that shortly after our post on meritocracy, we have news about the junior college (JC) mergers. For more information about the news, you could take a look at this weblink.

This drastic move by MOE has sparked a lot of concerns among the public and has brought up a few issues for us to consider. First, it would be the falling demographics of Singapore. The falling birth rates is cited as the main reason for the merger of schools, so that resources would not be wasted, and there would not be under-utilized staff in the system. With such falling birth rates, what would you think is going to happen to the future of the educational landscape (would teaching/tutoring as a profession still be lucrative? We know that MOE has cut back on the hiring of teachers from 3000 at its peak yearly to about 1000 right now).

Second question to think about would be the larger implications of these schools merger. Why are these schools selected? Some have argued that it is a strategic move by the government to level the playing field by merging these colleges so that academic standards would be streamlined? of course, we cannot merge schools like RI and HCI together as it would only further consolidate their super-elite status in society (besides strong school culture and powerful alumni).

Finally, school culture and history is being destroyed when merger takes place. If that’s the case, what does it say about how the nation values history? It is all about the future and progress right, the past no longer matters if it is holding us back. Pragmatism is the view of the Singapore’s state.

Post-Results 2016

Post-Results 2016

Chemistry, JC Chemistry, JC General Paper, JC Mathematics, JC Physics, Mathematics, Studying Tips, University Mathematics

Let’s face it. Some of us will not get the dream results we want. Don’t give up and let fear conquer you.

For students unsure of the available courses, they can check out the following post. It contains the grade profile for local universities.

Our Team will be here if you need help/ advice. Feel free to text us.

P.S. Today, I saw an image shared by Mr Wee, which said that “You’re the architect of your own life”. So let’s not let the grades define us.

2016 A Level H2 Physics (9646) Paper 1 Suggested Solutions

JC Physics

All solutions here are SUGGESTED. Casey will hold no liability for any errors. Comments are entirely personal opinions.

  1. B
  2. C
  3. B
  4. D
  5. D
  6. C
  7. D
  8. D
  9. B
  10. C
  11. A
  12. D
  13. D
  14. C
  15. C
  16. A
  17. D
  18. A
  19. B
  20. D
  21. Question 21 is a flawed question. When unpolarised light goes through a polarizer, the I is halved while the A is reduced by a factor of root 2. But based on the information Cambridge provides, the answer is C.
  22. D
  23. D
  24. C
  25. C
  26. B
  27. C
  28. A
  29. B
  30. B
  31. A
  32. C
  33. D
  34. B
  35. B
  36. B
  37. D
  38. C
  39. C
  40. C

Note to all: Casey will not respond to most of the comments as he is busy. You may contact him by SMS at  +65 9474 5005 if you have a burning question.

Feel free to explain the answers, if you are confident. Many thanks.

2016 A’level Suggested Solutions

2016 A’level Suggested Solutions

JC Chemistry, JC General Paper, JC Mathematics, JC Physics

Congratulations on the completion of A’levels for the 2016 batch!

As for those who still, are taking A’levels 2017, we hope you find this site helpful. Read the comments (ignore the trolls who have yet grown up) and learn from our mistakes.

It has been a pleasure for all us to interact with you guys. Do check back after your release of A’levels, as we will love to hear from you! In the meantime, you can always read through some of the posts regarding undergraduate & postgraduate courses in Mathematics (KS), Economics (KS), Physics (Casey) as we share some of our past experiences, along with some of our works today.

You’ve come a long way, now party hard. We wish you all the best in your future endeavours.

H1 General Paper (By Christine)


H2 Mathematics (By KS)

Read KS’ thoughts about the upcoming paper here.


H1 Mathematics (By KS)

H2 Physics (By Casey)

 

100 days more…

100 days more…

JC Chemistry, JC General Paper, JC Mathematics, JC Physics, Studying Tips

So the Midyear results are all out and Prelims are known to be in 4-5 weeks’ time. Many students are frantically searching for help and attempting to salvage their results. We are sorry to say that we aren’t able to take any more private students due to time constraints, and only the group classes are available. Our classes are all held in Newton Apple Jurong East.

Importance of June Holidays

Importance of June Holidays

JC Chemistry, JC General Paper, JC Mathematics, JC Physics, Studying Tips

June holidays are coming and JC2 students should really grab this last opportunity that you have to study. This is effectively your time you have a full month to study for your upcoming A’levels.

Credits: Calvin and Hobbes by William Boyd “Bill” Watterson II
Credits: Calvin and Hobbes by William Boyd “Bill” Watterson II

Through the years, we see many students who have their efforts paid off for working hard during June Holidays. So make sure you plan out your June Holiday well to study and catch up as much work as you can. Doing well in Mid-Years is a good start and also confidence boosting to your A’levels preparation. Some advice…

Self-discipline goes a long way. Not just in studies.

Start waking up early. Get your brains tuned to functioning in the mornings. Students who claim to be only functioning/ thinking only at night, should realise that your exams are mostly in the MORNINGS. And since we know that the exams are in the morning, maybe you want to start making your brain work in the morning.

Give yourself timed practice to train your time management and speed. This is very crucial in Mathematics. Putting yourself under time constraints is the best. And if its a 3 hours paper, sit there and do for 3 hours. Its amazing how students get restless after 2 hours of studying. How can one take a 3 hours paper when you can barely study for 2 hours. You can always find a friend and do the practice paper together. Peer studies are really helpful.

Try not lead a sedentary lifestyle. Time and time, we see some students burning out from studying. Do some sports. C’mon, you still have PROM to attend and its right after A’levels (first week of December, maybe?). You don’t want to be buying a new uniform too. And if you don’t like to exercise, then slot in 30 minutes of TV, YouTube (Just don’t get carried away.) every 3-4 hours of studying. Our brain needs some rest too. Be sure to sleep. Sleeping reinforces your memory and sharpens your thinking.

Seek help soon. Really, your teachers need a life too. So settle consultation hours with them early. Don’t flood them in the last week of June. They don’t owe you a living. Be considerate.