SPM physics: Importance of Mangroves

Sixteen years ago,...what do Acheh & Penang have in common?
Both of them were hit by Tsunami in year of 2004. Penang was not badly hit compared to Acheh in which the tsunami has claimed hundreds of thousands of casualties..

Will tsunami reach Penang again?? I hope not..but in the future u 'll never know...but one thing i wanted to share that mangroves ecosystem is important to minimize the impact of the tsunami.

Last year, President Jokowi of Indonesia instructed his people to plant more mangroves near their coastal areas. In contras..some parts of Malaysia e.g Penang, the mangroves ecosystem were sacrificed for the sake of new development.

Here are some of the links regarding the destruction of Penang mangroves ecosystem: Willing to destroy mangrove forests for the sake of development? Mangrove forest in Juru illegally cleared, confirms assemblyman

Why do we need to protect mangroves????

If u understand the concept of diffraction..mangroves will act as an obstacle to the incoming waves..

When the tsunami waves are diffracted..its amplitude will decrease..in other words, its energy is reduced.

Mangroves' roots also have smaller gaps to reduce further the waves' energy. Watch this video!

Perhaps we need to educate our children and the relevant authorities to appreciate the importance of the mangroves ecosystem. Don't let these ecosystems being sacrificed for the sake of development.. Once they are fully destroyed..it will only jeopardies our future generation.

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SPM2019:Physics Paper 3 tips

Here I list down some of the experiment which I think important to take note...

but please bear in mind, the best is for u to go through all the experiments that u 've learned. 

The hypothesis is simple:

The more experiment u've covered..the more chances that u can do well in the paper 3 :)

Form 4 experiment:

1. To investigate relationship between speed(RV) and height(MV).// 
    (use ticker tape ,trolley etc)

2. To investigate relationship between pressure(RV) and area (MV).
    (use plasticine, ruler,wooden block)

3. To investigate relationship between buoyant force (RV) and density(MV)
    use steel rod, beaker, spring balance, etc

4. To investigate relationship between the amount of heat (RV) and mass (MV)
   (immersion heater, thermometer,stop watch etc)

5. To investigate relationship between  image distance (RV) and object distance (MV)
   ( use convex lense, ruler, bulb etc)

6. To investigate relationship between refracted angle (RV) and incident angle (MV)

Form 5 experiment:

1. To investigate relationship between wavelength(RV) and frequency (MV)
    (ripple tank, motor vibrator etc)

2. Interference experiment: water or sound interference
   To investigate relationship between distance (x) and distance (a)

3. Factors affect resistance:  temperature or diameter
    To investigate relationship between resistance (RV) and temperature(MV)

4. Ohms law: Relationship between voltage & current

5. Transformer:
    To investigate relationship between output voltage (RV) and no. of secondary coil(MV)

6. Fleming left hand rule:
    Relationship between force and current

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SPM Physics: Understanding Waves

Any SPM candidate, especially form 5 student must grab basic definition on the 1st subtopic of wave chapter.

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SPM Physics Study Tips

Please improves the following maths skills to improve your physics results:


1.Algebra
2.Standard form
3.Unit conversion
4.Indices
5.Linear graph
6.Ratio

Act now before its too late. If u still weak in maths, try hiring a tutor.

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SPM2019 physics tips 1

Every year there will be a question on physics definition that will be asked in SPM. Like it or not student has to understand & remember most of the definition. If the student really understands the meaning, they will notice that some of the definition has something in common. 
Try to share this picture among your friends, kids or student. 
Ask them to find the similarities among this definition.

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