Today i'm gonna share with u tips on avoiding mistakes while doing calculation type of question.
Common habit among student once they attempt calculative questions, they simply grab a calculator & start to press the button like playing PSP. They don't bother to highlight or jot down anything. This habit can cause u to do careless mistakes, especially if u forgot to change its figure into SI unit.
So for this purpose, i'm sharing u a technique that can minimise your mistakes.
This technique is called LESS..i.e u need to carry out these 4 steps;
1. List down and highlight all the information or figures given( check its unit as well)
2. Equation = choose the right equation/formulae
3. Substitute the figure into the relevant equation
4. Solve the equation..then baru press your calculator :)
For example:
A car traveling with a velocity of 10 m s-1 accelerates uniformly at a rate of 3 m s-2 for 20 s. Calculate the displacement of the car.
1.list down the information: u=10 , a=3, t =20
2. Choose the equation.. (v2 = u2 + 2as) or (s = ut + ½ at2)...
you are not provided with v, thus most suitable is (s = ut + ½ at2)
Then substitute and solve the equation
s= 10(20) + (1/2 x 3 x 20x20)
= 800m
If u apply LESS technique step by step.., i'm sure u'll grab MORE marks :)
just enjoy your revision during this festive season :)
About Me
- Cikgu Ahmad
- I am a full time specialist Physics tutor operating in Klang Valley. I've been educating student for more than 10 years. My specialty is to transform student that had failed their physics subject into a better result. Even some of them managed to get an A in their final exam, You can read their testimony in this blog. I provide home tuition for physics subject to those living nearby KL especially around W.Maju, Ampang,Melawati and Setiawangsa. At the same time i 'm giving online tuition to all malaysia & overseas student. For tuition centre looking for a physics tutor, i'm also able to give seminar and conduct weekly classes. Meanwhile,for school teachers who are organising physics seminar, i am happy to assist u in that aspect. If u have enquiry on my service, do contact or whatsap me at 017-2877589 or email me at celikfizik @ gmail . com
2 comments:
nice one cikgu fizik..however,ramai juga student skang ni ase nak cepat je jwb, langkah 1 dah skip...hahaha...
thnx master yoda, hrp dpt membntu stdnt2 kita ni
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