Free fall

Balancing using the centre of gravity

Sec 2 Physics Revision 2014

This announcement is for all sec 2 express students.

Please log in to your Lead Portal and check the lesson "Sec 2 Physics Revision Guide 2014" for the revision guide (all topics tested in end-of-year exam) and 2 revision worksheets.

Click here for another important message.

Fold your own balancing bird

This is the video we briefly saw in class today in 3H, for your own leisure watching.

You are advised not to use dollar notes. Please find some used recycled papers instead.

And here's the video which was shown in class today.

Please take note for your physics tests and exams

For the final answers for all calculations: 

• Do not leave in fractions
• At least 2 significant figures (add a .0 to single-digit number) 
• At most 3 significant figures (round off long numbers to 3 sf) 
• Correct units are always necessary in all final answers

This applies for all physics assessment papers.

Also take note:
You are required to know the SI units and prefixes.

Blood Donation Drive

Donate blood, save lives! I'll be there until noon. =)

Please click on the images to view enlarged

Donors who are 16 or 17, please click here to download the parental consent form.

Sec 3N(A) Physics June Holiday Homework

Sec 3 Normal Academic Science (Physics)

J June 2014 Holiday Homework Assignments J

Dear Sec 3 students,

Part 1 TYS

You should have already completed these topics in your TYS in March term break:

• Topic 1 Physical Quantities, Units and Measurement
• Topic 11 General Wave Properties
• Topic 12 Electromagnetic Spectrum
• Topic 13 Sound

You are to complete these topics in your TYS before school reopens in July:

• Topic 8 Kinetic Model of Matter
• Topic 9 Transfer of Thermal Energy
• Topic 10 Thermal Properties of Matter

We will check that you have completed all the topics listed above in your TYS when school reopens in July.

Part 2 Revision Notes

Revise and write your own revision notes for each topic in semester 1 (all of the topics listed above) on A4-size paper.

You may use lined writing paper or plain paper.

Start each topic on a fresh sheet of paper.

Submit your revision notes for checking when school reopens in July.

Regards,

Your Physics teachers

Sec 2 Physics June Holiday Homework

Go to LEAD portal.

Open the "Sec 2 Physics - June 2014" Lesson Package assigned to you.

View all the tutorials and attempt all the activities and quizzes assigned to you.

Complete the following questions from Lower Secondary Science Matters Textbook Volume B on foolscap paper and hand in to your Physics teacher during your first Physics lesson.

Chapter 14: Interactions Through the Application of Forces
Pg 107: Questions 5, 6

Chapter 15: Energy and Work Done
Pg 123: Questions 1, 2, 3, 4

Miscellaneous (for your own revision)

At the navigation bar, look for "My Subjects".

From the drop down menu, select "Science" then "UC - Lower Sec Science (Singapore syllabus)".

A new window will open, go to "Interactions" and complete all the topics under:

1. Interactions Through the Application of Forces
2. Energy and Work Done
3. Transfer of Sound Energy Through Vibrations
4. Effects of Heat and Its Transmission

Mid-Year Examinations 2014

It's starting tomorrow~

All the best for your mid-year examinations!

Inventions from the past

Whether it's a monowheel motorcycle or a monowheel car, one thing for sure: I'm not sitting in either!

N(A)-Level Mathematics 2014

For my 4N(A) students. Syllabus 4042 (Source: SEAB)

3G/3H - check this out on Lead Portal

Dear students,

If you are interested in finding out more about air pressure, check out this Video Experiment on Lead Portal!

1. Log into Lead Portal

2. At the navigation bar: My Subjects > Physics > Live Physics

3. Under Topic Listing: Pressure > Bubble in a Bottle
4. Watch the "Video Discussion" and see the "Explanation"

The explanation in today's lesson "Passing through Ice" includes some very interesting information on chocolates. If you're interested in the formation of the several crystal forms of chocolate, here's an interesting article for you - "Chocolate - The Noblest Polymorphism": Part 1 | Part 2 | Part 3.

So the next time you eat some chocolate, don't forget there's a lot of science behind this sweet and satisfying substance that melts slowly in your mouth. Have fun!

Sec 2 N(T) Mathematics MYE Topics 2014

All secondary one topics.
All secondary two topics covered in the first semester:

• Chapter 1 Algebraic manipulation
• Chapter 2 Linear equation in one variable
• Chapter 3 Functions and graphs
• Chapter 4 Proportion
• Chapter 5 Rate and speed
• Chapter 6 Triangles and quadrilaterals

You want to do your best, so keep on practicing and never give up!

Sec 3 Physics MYE Topics 2014 and syllabuses

Your MYE will cover all the topics in Semester 1.

Sec 3 Physics (SPA) MYE Topics 2014

• Topic 1. Physical Quantities, Units and Measurement 
• Topic 8. Kinetic Model of Matter 
• Topic 9. Transfer of Thermal Energy 
• Topic 10. Temperature 
• Topic 11. Thermal Properties of Matter 
• Topic 12. General Wave Properties 
• Topic 13. Light 
• Topic 14. Electromagnetic Spectrum 
• Topic 15. Sound 

Sec 3 N(A) Sci(Physics) MYE Topics 2014

• Topic 1. Physical Quantities, Units and Measurement 
• Topic 8. Kinetic Model of Matter 
• Topic 9. Transfer of Thermal Energy 
• Topic 10. Thermal Properties of Matter 
• Topic 11. General Wave Properties 
• Topic 12. Electromagnetic Spectrum 
• Topic 13. Sound 

Topics are numbered according to the syllabuses. If you are interested to find out more about the syllabuses for your national exams next year, check out these links from SEAB:

• Syllabus for GCE O-level Physics 2015
• Syllabus for GCE N(A)-level Science 2015

Brain Awareness Week 2014

A message from Singapore Science Centre:

As part of the International Brain Awareness Week, Science Centre will be organising some exciting mind-boggling activities. Look at real-life brain sections of various species and try your hands (and mind) on different mind-controlled video games. Satisfy your curiosity regarding the inner workings of the brain with talks by neuroscientists on sleep and what’s it like to be a Scientist.

More details can be found on our website, as well as a synopsis of the talks: Brain Awareness Week 2014

Dates: 15-16 March 2014

Youtube clips on Sound

On transmission of sound:

On audible frequency range:
(Beware of super high pitch sound, do not blast your speakers/earphones!)

And I've shared a very old video on "Sound Waves" much earlier in this old entry.