Fields Trip

Dear PHYF125 Students,

Through this semester, we will be deliberating on topics related to electric and magnetic phenomena in terms of the fields of electric charges and currents. Among others, we will discover that the force between two electric charges is due to the interaction between either one of the charges and the field of the other. It is therefore essential that all of us are equipped with a thorough understanding of the methematical methods required to deal with fields. The concept of field and the mathematics of vectors are essential for us to study Physics in great depth.

Mathematically speaking, a field is a function that describes a physical quantity at all points in space. In scalar fields, this physical quantity is completely specified by the magnitude for each point. Temperature and electric potential are examples of scalar quantities that can vary from one point to another in space. As for the vector fields, both the number or magnitude and the direction are required. Gravitational force and electric field are example of such vector quantities. Furthermore, the usual custom right-hand Cartesian coordinates system will be used from time to time.

Enjoy your Physics!

Physics Notes

Dear all,

You may download all the foundation Physics lecture notes, tutorial questions and past semester final examination questions from the following link:

http://metalab.uniten.edu.my/~rosmiza/

(Courtesy of Dr. Rosmiza)

Thank you.

The Statistics

Dear PPC students.

I'm showing the statistics of your performance in the PHYF115 subject for last trimester. Congratulations to those who did well but to the rests, it is not the end of the world. There is still time to make ammend on the past mistakes and I wish everyone all the best. Have fun in Physics!

1PPC
Grade No. Percentage
A *** 2 *** 8.3
A- ** 4 *** 16.7
B+ ** 3 *** 12.5
B *** 2 *** 18.3
B- ** 4 *** 16.7
C+ ** 3 *** 12.5
C *** 5 *** 20.8
C- ** 1 *** 4.2
Total 24 ** 100

2PPC
Grade No. Percentage
A *** 4 *** 20
A- ** 3 *** 15
B+ ** 3 *** 15
B *** 3 *** 15
B- ** 1 *** 5
C+ ** 4 *** 20
C *** 2 *** 10
C- ** 0 *** 0
Total 20 ** 100

Nasri set for first Arsenal start of the season

France midfielder Samir Nasri could be set to return to first-team action for Arsenal when they take on Liverpool in the Carling Cup on Wednesday night.

Nasri suffered a broken leg during pre-season training in July but made his comeback for the reserves last Tuesday. And, having been named among the substitutes for the 2-2 draw against West Ham United on Sunday, he is now in line to make his first appearance of the season.

Goalkeeper Lukasz Fabianski could also make his first appearance of the season as he looks to fight for his place after recovering from a knee injury.

"It has been a frustrating time for me because of the injury but it's gone now and I need to look forward to the future," Fabianski said. "I want to get back into the team, fighting for my place really hard.

"I want to show my quality and, hopefully, win a trophy with Arsenal. I can think about this now that I am completely fit, which is the main thing. I want it to stay that way."

Philippe Senderos and Mikael Silvestre are expected to be involved alongside a number of youngsters such as Jack Wilshere, Aaron Ramsey, Carlos Vela and Fran Merida.

By Soccernet staff (ESPN Soccernet)

The Reality

Hi everyone,

I guess that everyone of you are having a real break from books, assignments, quizzes, tests etc. There is only one more week to go and I think everything will be back to "normal" once the class starts next week. Your last trimester results will be out by this week and you must expect the unexpected things to happen, but please remains composed and stay calm.

As far as Physics result is concerned, sadly to say your performance was not what I'm expecting or wished. Only 13 of you (out of 44 students) obtained A and A-. In fact only 6 of you achieved A, which is merely 14%. To make matter worst, one of you got a C-, which is totally unacceptable considering that majority of you were top performer students during your SPM. Well, it is quite difficult to pinpoint the reasons for the poor performance, but maybe some of you have difficulty to understand the materials due to poor command of English. This is just my wild guess. On the bright side, one of you managed to get 98% in the overall score and this has made me very proud. Well, I will give more comments on this matter once I have received the results from other students and for different subjects.

So long for now.

Happy Holidays & Deepavali Celebrations

Hi there,

The final examination is approaching the final day. I believed that everyone of you have tried your best and hopefully your results consummate with your efforts and hardwork. Then comes the holidays and celebrations, please don't overjoyed and be moderate in whatever activities that you are doing. If you are driving, please drive safely and give due consideration to the others.

The Trimester 2 2009/2010 will resume on the 2nd. November 2009 and I hope everyone is fresh and motivated by that time. Happy holidays and have fun!

All the Best

Dear All.

First and foremost, I would like to thank those who have given comments and opinions in my blog. Surely all of you are my source of inspiration and motivation, and I really appreciate your kind words and positive comments.

Next week is the final exam week. I hope all of you have made the necessary preparation and at this point of time, please study smart. At this final push sometimes study hard is a disaster and I guess study smart is the best option. Please take care of your health, have enough sleep and take proper lunch and dinner.

I would like to take this opportunity to wish everyone of you all the best in the final exam. I really enjoy teaching you guys and your responses and feedbacks during our classes were just tremendous. I hope one day I'll be able to teach you again in different subjects. I would also like to apologize for any of my actions and words that may hurt your feeling or offended you.

Good luck and see all of you again, Insya Allah.

1PPC

4 Ladies & An Old Man

Quiz #4

Hi Everyone,

Next week will be the final week for Trimester 1, 2009/2010 academic year. The final exam will start on 12th. October 2009 and from the latest exam time-table that I have received, the PHYF115 paper is scheduled to be held on Tuesday, 13th. October 2009, from 9 am - 12 noon at the Library Exam Hall. Hope everyone utilize your time wisely in preparing for the final exam.

As promised, here is the question for Quiz #4. Please e-mail your answer to: Nasri@uniten.edu.my
Don't forget to put your name and ID number at the bottom of your e-mail. All the best to everyone.

Quiz #4

In an elliptical orbit, identify the position in which the speed of a planet is maximum and minimum, respectively. Explain your answer.

Name:
ID No.:

Buurp

Ahaa,

I bet most of you are enjoying the hari raya goodies, lemang, ketumpat, rendang, nasi himpit etc etc etc. Please set certain limit while eating so that you won't regret yourself at the end of the day. The abundance of foods & cookies should not be used as an excuse to fill up your stomach to the brim.


OK, let us talk about the second test. As a reminder, the test will be held on Monday, 28th. September 2009 at the Library Examination Hall. The duration of the test is 1 1/2 hours from 8.30 pm - 10 pm. The test will cover Chapter 6 until Chapter 10. There will be 5 short questions to be answered in Part A and for Part B you need to answer only 2 questions out of 3 given questions. Please pay attention on the following topics:
1. Circular motion and forces in circular motion
2. Work and work done by frictional force
3. Conservation of energy and energy equations
4. Conservation of momentum and energy in elastic collision
5. Equations of motion, torque and power in rotational motion

See everyone in "one-piece" on Monday, Insya Allah, God Willing.

Selamat Hari Raya Aidilfitri

Dearest Students,

Hari Raya Aidilfitri is just around the corner. I guess all of you are going back to your hometown by Thursday or Friday and I would like to take this opportunity to wish "Selamat Hari Raya Aidilfitri, Maaf Zahir Batin" to the Muslims. As for the rests, happy holidays and please use the long break wisely.

While enjoying the ketupat, rendang, dodol etc., please take precaution on your health. The H1N1 virus is still roaming the air, and as such try to avoid big crowds and always stick to hygienic practices at all time. Hopefully as the break is over, everyone is back in one piece, healthy and motivated.

We still have two weeks to go before the final exam on the 12th. October 2009. As a reminder, the second test will be held on 28th. September 2009 from 8.30 - 10.00 pm, and I'm very sure all of you are geared for the test.

So long for now, see you guys after the hari raya break, Insya Allah.

Approaching the Final Week

Hi there,

Thank you for the remarks from some of you that were posted in my blog. I saw new members following my blog but they are using pseudonames. Nevertheless, time flies very fast. Next week is the last week of Ramadhan and to the Muslims including myself, it is a sad occasion since the blessing and virtues of Ramadhan will be missed by all of us. Let us pray that Allah SWT will grant His mercy upon us.

Talking about the final week, our semester is approaching toward the end and for the coming weeks, everyone of you needs to buck up and do a lots of revision. Start preparing yourself from now and this includes the Hari Raya breaks.

I'm planning to give you guys a quiz next Tuesday. It is going to be a simple one and I bet everybody can do it. OK guys, see you next Monday Insya Allah.

Moving On

Hi Everyone,

Next Monday is another public holiday. To the Muslims, the Nuzul Quran marked the day in which the first few verses of the Al-Quran were revealed to Prophet Muhammad SAW.

So we have only two hours of lectures to go with for next week. Most likely we are not able to finish Chapter 10. Anyway, we'll do our best to keep up with the syllabus. As for the second test, the subject coordinator has not decided on the date yet. I'll keep you guys posted!

So long and see you guys next week, God Willing.

Topics for Next Week

Hi Ladies & Gentlemen,

The photo was taken while I was visiting the University of Cambridge in UK a few years back. I was pretty slim at that time, did I?

OK guys, back to business. For next week, we still need to cover a topic on center of mass. Nevertheless, here are the rest of the topics for next week. Have a nice weekend!

10.0 Rotation of a Rigid Object About a Fixed Axis
10.1 Angular Position, Velocity and Acceleration
10.2 Rotational Kinematics: Rotational Motion with Constant Acceleration
10.3 Angular and Linear Quantities
10.4 Rotational Kinetic Energy
10.5 Calculation of Moments of Inertia
10.6 Torque
10.7 Relationship Between Torque and Angular Acceleration
10.8 Work, Power and Energy in Rotational Motion
10.9 Rolling Motion of a Rigid Object

The Coming Weeks

Hi everyone.

How was the test? I hope everyone did very well but I have yet finish marking your answer scripts. I hope to finish the marking over the weekends. Apart from that I guess you still owe me Quiz #2. As I have mentioned earlier, we will have couple of replacement classes in the coming weeks to cover the classes that we have missed during the closure of the campus because of the A(H1N1) virus. I anticipate that we will have more classes that need to be replaced due to holidays over the Merdeka Day on 31st. August and the Hari Raya breaks on 21st. & 22nd. September. The replacement classes will be held on Wednesdays 2-3 pm for Section 1 and Thursdays 9-10 am for Section 2.

To my Muslim students, I wish all of you a bless Ramadhan. As you all know, we will start observing the Ramadhan fasting month this Saturday. Insya Allah I hope everyone of you have geared yourself for the month. This is a month where we are supposed to cleanse ourself physically & spiritually. Please make a point to take your "sahur" before the dawn prayer and drink plenty of water so that you will not get exhausted during the day. There will also be one special night during this month known as "Lailatul-Qadr". Here is a short excerpt about the night: Lailatul-Qadr is the most virtuous night in the year. Almighty Allah says in the Qur'an: “We have indeed revealed this (Message) in the Night of Power: And what will explain to thee what the night of power is? The Night of Power is better than a thousand months.” (Al-Qadr: 1-3) The hidden treasures of Lailatul-Qadr and the great reward for those who strive hard in this blessed night was kept hidden except for some apparent signs. The Prophet (peace and blessings be upon him) urged Muslims to seek it in the last third part of Ramadan and namely in the odd number of nights. The fact that it is kept hidden is for a divine wisdom so that people strive in worshipping Allah as much as they can.

Of course it is also very challenging to stay awake during the classes especially the afternoon classes! All right folks, here are our topics for next week:

8.0 Potential Energy
8.1 Potential Energy of a System
8.2 The Isolated System-Conservation of Mechanical
Energy
8.3 Conservative Force
9.0 Linear Momentum and Collisions
9.1 Linear Momentum and Its Conservation
9.2 Impulse and Momentum
9.3 Collisions in One Dimension
9.4 Two-Dimensional Collisions
9.5 The Center of Mass

All the best!

Coming Back

Hi there!
I pray that everyone of you out there is safe and sound. It is devastated to learn that the number of casualties from the H1N1 virus keeps on increasing. Please take extra precautions and maintain hygienic practices at all time.

As you all know, the campus will be reopened next week and I hope to see all of you in high spirit and excellent health. We have missed one week of lessons and we need to do a lot of catch-ups in the coming weeks to meet the demands of our syllabus. Insya Allah, God Willing I'll do my best to accomodate the situation. In return, I hope all of you will strive hard to meet all the challenges and expectations.

As a reminder, our Test #1 is rescheduled to Tuesday, 18 August 2009. Quiz #2 is also due on the same date.

All the best and see you guys!

Reflection

Hi everyone,

This week is a busy week for me and perhaps everyone of us. Since Monday, there was the Anugerah Kualiti Presiden (AKP) visit by a panel of assessors that ended on Wednesday. On top of that, I have to postpone my Tuesday class for Section 2 to Thursday morning since I was involved with the SCOReD conference as one of the parallel sessions' chairperson. But suddenly Ms Sue called me saying that the Thursday morning class has to be cancelled because you guys are required to attend the opening ceremony of the Teaching & Learning Conference organized by IKAL.

Well, life got to go on. Next week I'm planning to finish all the topics that were planned for this week. Beside, we are going to have our first test on Tuesday, 11 August 2009 and I think we will do some quick revision during classes before the test. And please remember, your Quiz #2 is also due on the same day. As such, please spend some of your time over the weekend to reveiw all the topics that we have covered.

The H1N1 virus is spreading like bush fire and the number of casualties keep increasing day in and day out. Please take care of yourselves, avoid crowded place like shopping complexes, sports field, swimming pool etc. If you have symptom such as flu and high fever, please don't hesitate to go to the nearby clinic or hospital immediately. If necessary, please wear a mask to protect you and the others around you. Practice hygienic habits at all time.

See you guys next week, Insya Allah, God Willing.

Quiz #2

A spacecraft drifts through the space at a constant velocity. Suddenly a gas leak on one side of the spacecraft and resulted in a constant acceleration in a direction perpendicular to the initial velocity. The orientation of the spacecraft does not change so that the acceleration remains perpendicular to the original direction of the velocity.
a) Describe the subsequent motion of the spacecraft, its initial velocity, projection angle and acceleration.
b) Give an equivalent motion that is similar to the situation.

Topics for Week 4

Hi,

Here are the new topics for the coming week. Have fun!

6.0 Circular Motion and Other Applications of Newton’s Laws
6.1 Newton’s Second Law Applied to Uniform Circular Motion
6.2 Nonuniform Circular Motion

7.0 Energy and Energy Transfer
7.1 Systems and Environments
7.2 Work Done by a Constant Force
7.3 The Scalar Product of Two Vectors
7.4 Work Done by a Varying Force
7.5 Kinetic Energy and the Work-Kinetic Energy Theorem
7.8 Power

After 3 weeks

Hi there!

So far so good. We are not able to complete Chapter 5 as scheduled but I guess we will catch up those topics next week. I know some of you are far ahead but I purposely went pretty slow so that others could grab the ideas and concepts firmly. You know, when talking about Newton's Laws of Motion, the most important elements are the mathematics behind them. You must be able to relate the mathematical concepts such as vectors into those laws. In high school, I believed the mathematical concepts were also discussed but perhaps very briefly. And now suddenly you are dealing with a lot of mathematics to solve most of the problems.

I'm thinking of giving you guys a quiz next week probably on Tuesday, August 4th. The topic will be on projectile motion and it will be conducted during our lecture periods. A week after that, on Tuesday August 11, I'm planning to give Test 1 which will cover Chapter 1 - 5. I'll discuss on this matter with you guys later.

Please keep posted and have a nice weekend!

Our week 2 ...

Hi guys!

Our week 2 went extremely fast. Hope all of you could follow and understand each and every topics very well. On my part, I had a rough time to control my coughing and it really bugged me. Alhamdulillah maybe there is blessing in disguise, perhaps it is a reminder to me to take care of my health seriously.

You guys were very active during our lectures and discussions, and almost everybody seemed to participate. Even the only "alien" among you was hyper. Just kidding! Nevertheless, there were one or two who looked very tired or did not pay much attention to our lessons. But overall, I'm extremely pleased with your attitude. Please keep up the momentum and if I'm not mistaken we are going to have our first test on September 18, 2009. I'll keep you guys updated.

OK guys, if you have any queries please keep me posted either through my e-mail or blog. Take care and looking forward for our next class, God willing.

Topics for Week 3

Hi there!

Here are the new topics for next week. Even though we still have few more examples to cover from the last topics, you may start browsing the notes and the textbook to get better pictures on what to study next. Have fun!

5.0 The Laws of Motion
5.1 The Concept of Force
5.2 Newton’s First Law and Inertial Frames
5.3 Mass
5.4 Newton’s Second Law
5.5 The Gravitational Force and Weight
5.6 Newton’s Third Law
5.7 Some Applications of Newton’s laws
5.8 Forces of Friction

Topics for Week 2

3.0 Vectors
3.1 Coordinate System
3.2 Vector and Scalar Quantities
3.3 Some Properties of Vectors
3.4 Components of a Vector and Unit Vectors

4.0 Motion in Two Dimensions
4.1 The Position, Velocity and Acceleration Vectors
4.2 Two-Dimensional Motion with Constant
Acceleration
4.3 Projectile Motion
4.4 Uniform Circular Motion
4.5 Tangential and Radial Acceleration

Quiz #1

Hi Students.

It is time for our first quiz. Please answer the following questions on an A4 size paper and submit to me during the class hours on 21.07.09. Please include your name and ID number.

Have a nice weekends!

a) If the average velocity of an object is zero in some time interval, what is the displacement of the object for that interval? Please explain.

b) Two cars A and B are moving in the same direction in parallel lanes along a highway. At some instant, the velocity of car A exceeds the velocity of car B. Does this mean that the acceleration of car A is greater than that of car B? Please explain.

c)A baseball is hit so that it travels straight upward after being struck by the bat. It takes about 3.0 s for the ball to reach its maximum height. Find:
i) The initial velocity of the ball after being hit.
ii) The maximum height reached by the ball.

Comments

Dearest students!
Our week 1 lessons went quite smoothly. Majority of you especially the ladies participated actively during the classes. But a few guys in the middle row for both sections chose to remain quiet. Perhaps that kind of learning style suits them well.

By the way, there are some hiccups which I hope we could rectify as the weeks go by. For section 1, the front row is too close to the white board and I have trouble to place my projector properly. And I think if I were to use an overhead projector for transparency, probably there is no space to accomodate it. As for section 2, the room is too glaring especially for the afternoon class. I think a curtain will do to minimize the glare.

In term of schedule, I think we are on the right track and all the planned lesson are completed as scheduled. Except for section 2 where we still have topic on "Free Falling Objects" to cover. Otherwise we are OK. Please take note that I'm planning to give the 1st quiz next week based on the topics that we have learned so far.

So long and see you guys in our next class, God Willing. Bye.

Topics for Week 1

CHAPTER 1 : PHYSICS AND MEASUREMENT
1.1) Standards of Length, Mass and Time
1.2) Prefixes for SI units
1.3) Density and Atomic Mass
1.4) Dimensional analysis
1.5) Conversion of Units
1.7) Significant Figures

CHAPTER 2 : MOTION IN ONE DIMENSION
2.1) Displacement, Velocity, and Speed
2.2) Scalar and Vector Quantity
2.3) Acceleration
2.4) Graphical Representation of Motion
2.5) One-dimensional Motion with Constant Acceleration
2.6) Freely Falling Objects

Welcome!

Hi Students!

Welcome to my PHYF115 class.