Post II

Chapter 2 (kowt)

Forces and Motion.

So basically, chapter ni tentang Force (daya) and Motion (pergerakan). Dalam chapter ni students akan belajar mostly tentang daya dan motion yang disebabkan oleh daya tersebut.

Eg. Lisa applied 2N of force on the stationary ball, pushing it to the same direction as Lisa's hand.

Now. Dari statement kat atas, Lisa tu boleh diketepikan, dia x penting dalam dunia sains, hahah. Lisa kenakan daya sebanyak 2 Newton dekat bola yang initially stationary. After the force is applied, bola tu bergerak mengikut arah tangan Lisa. If Lisa pushed the ball from the right to the left, than the ball moves to the left. and vice versa.

Dalam Physics form 4 dan 5 ni, students will learn about the units and quantities that students probably never heard before. haha

Unit ni, ntah lah nak terangkan pon payah.
contoh, Ali has RM5 in his pocket.
-RM atau Ringgit tu unit yg kita guna untuk currency.

atau
The car travelled 25 km at a speed of 40 km/h.
-km or kilometre is the unit for length
-km/h or kilometre per hour is the unit for velocity and speed

oh and yes, velocity and speed are two different quantities. aww Physics is surely killing you.

Post ni x boleh nak terangkan semua, so aku akan share cara aku hafal prefix untuk unit unit tu ja lah.

Basically dalam syllabus Physics MOE untuk sekolah menengah, ada 7 ja prefix kalau x silap aku.
Micro, Milli, Centi, - , Kilo, Mega, Giga.

ada bnyak lagi. Deci, Deca, Tera, Femto. students x perlu tahu yang lain tu melainkan kome macam aku, minat terlebih. haha.

So. You know there's the general form for expressing values of a quantity.
For example, 5.25 x 10^5 km = 525 000 km.
Simple way of stating large numbers.

So, untuk prefixes tu, yang kome perlu hafal;

N x 10^-6  Micro
N x 10^-3  Milli
N x 10^-2  Centi
N x 10        -
N x 10^3   Kilo
N x 10^6   Mega
N x 10^9   Giga

nak hafal, mudah ja sebab kebanyakan exponent untuk nilai 10 tu adalah hasil darab 3.
so, mula dngan root nya (atau unit asas, x da prefix) contohnya metre.

2 x10^-6 m = 0.000 002 m = 2 micrometre.
2 x10^3 m = 2 000 m = 2 kilometre.

Itu ja kot. memang x ckup nak explain the whole chapter as in the textbook, but cukup lah untuk make sure kome dapat faham konsep Physics. Once you dah faham, you'll remember it.

Good Night ^_^

PHYSICS

Understanding the whole concept of Physics and what Physics is all about.

Post I

First of all, you need to know that my English ain't good enough, so expect some grammatical errors. And blog ni pun untuk students sekolah menengah kat Malaysia. Let's begin. 

So, Physics or φυσική (knowledge of nature) , is the natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. By understanding physics, you'll know that physics allow you to calculate anything, be it the pressure you're applying on the ground, or the velocity of a man running relative to the bus he is on. Here are some topics you might find in your Physics textbook ;

*Forces and Motion
*Pressure
*Heat
*Wave
*Magnetism
*Electricity and electronics
*Electromagnetism
*Atoms and molecules etc. 

There are more to that. My posts afterwards might not even follow the order of topics above.

Physics itself has lots of branches,

*Astrophysics
*Nuclear Physics
*Geophysics
*Neurophysics
*Quantum physics

Physics is the route to so many careers, from predicting climate change to designing computer games. These are some ;

*Astrophysicist, 
*Astronomer
*Mechanical engineer
*Lecturer , teacher etc
*more.

Some famous physicists of all time include Albert Einstein, Sir Isaac Newton, and Max Planck. In general, Physics is a branch of science that explains the nature of objects and why it happens. E.g. If Chemistry say water can't mix with oil, Physics help explain why the two does not mix.

Hmm, ni dah cukup kowt untuk first post ni. :D See ya

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