LESS is MORE

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 at^2)...
you are not provided with v, thus most suitable is (s = ut + ½ at<sup>2)


Then substitute and solve the equation
s= 10(20) + (1/2 x 3 x 20x20)
 = 800m</sup>

If u apply LESS technique step by step.., i'm sure u'll grab MORE marks :)
just enjoy your revision during this festive season :)