Best Way to Approach Physics Numericals

Physics is an interesting subject, the presence of problems makes it more.

Don’t think any problems to be tough. Don’t be like, yeh problem to bilkul nai hoga mujhse. Rather face the problem. Positive attitude towards problem solving in physics is mandatory.

Make sure you understand the concepts clearly. It is an important part in physics.

While solving problems,first read the problem as many time needed to fully understand the question(what does its say and asks.). Note down the given data from the question, which helps you to narrow down to the exact formulas needed to solve it.

Lastly, consult your teacher (school or tuition), for further advice or suggestion if you can’t really solve a problem.


1. Stay Calm, No need to Panic


I know it would be easy in words but it’s tough to follow. The Moment you will read the first line of the question if you just make a frame that this is a tough question, then fir sure even though if it’s not that difficult you would not be able to solve it. Nothing will click in your mind and then you will surely go in a frame that what to do and all the negativity will slowly start getting in your entire blood!!

That’s the time where you need to act smart and stay calm. Take a deep breath and then just go on!!

Try to apply the basic approach to that particular problem as there are many questions which are easy but asked in a tricky manner due to which students get confused. If you know all the important formula and rest basic tricks then you surely you will get the answer. The main remedy is that you need to make few different set of steps which you should follow in any problem, gradually will lead to the perfect answer!!


2. Identify the topic of the problem.


What exactly is the question saying and what they want in the answer Is also an important aspect in the section of physics. Whether the question is about wave optics or Ray optics? Figure out the context first. There is no need to understand all the textual part in the question if it’s a simple numerical. Read the entire problem with focusing on the main points and parallel you should start the question with a very basic approach.


3. Read the Question Properly


By identifying the problem you now need what exactly the question is all about along with the related topic from which the question is being asked. As there are many question which are linked with more than one topic so a student needs to read the entire question carefully. Many times, the students read the question once and start directly putting the formula due to which they miss the important content that could be a major aspect for that particular problem. The students are advised to read the question more than one time as it will be beneficial to reach the exact correct answer.

There are many problems in which the statement like “Car is starting from the rest” The initial time will be zero in that case and the initial velocity will also be zero!


4. Organize the Information


Theoretically, a problem contains a lot of words which are sometimes irrelevant to the questions but also in many cases you get to know the effect of that word in the problem later. Just For example, if the question says “ A bus that starts moving from rest and takes 7 min to reach a speed of 25 km/hr, then you should surely note down the basic variable quantities like:

  • Initial velocity(u) = 0 km/hr
  • Time(final) = 7 min
  • Final Velocity(v) = 25 km/hr
  • Acceleration (a) = ?

This problem does not require any extra approach. All you need is to focus on the important points and make a linear equation using Laws of Motion which will be easy for you to solve.


5. Make a proper figure for the Problem


Preparing a proper figure for the question in Physics reduces half of the difficulty of any problem. All you need is to make a rough layout and keep drawing as the question keeps on saying. If the question is from Force, Mechanics, Gravitation then you need to just resolve the force acting in its Sine and Cosine resolves.

You don’t need to be in good in drawing but should draw a neat diagram and keep on solving as the question says.


6. Units and Dimension


The units and dimensions are the base any Answer or the Variable. The questions in JEE Main and all Other Exams consist of problems where the entire information is given in the different units and the answer is asked in some other specific units.

The most easiest way is to learn the conversions but many a time you need to find it out, like if in the question the units are given in MKS system and Answer is asked in SI.


7. Formula Should be right!


Write down all the related formulas in front of you and then you can easily see that on using the variables in which particular formula the answer we will get is perfect. You can do as many cases but moreover on looking ll the formulas related to a particular topic you will see and get the correct formula that will lead you to the answer.


8. Solve


Using the above formulas, solve the entire questions. If there are more than one equations then you should solve it simultaneously. Also, try not to do excessive calculations and making a normal solution complex.


9. Match your Answer


After doing the solution match your final result to the answer given in the option. Many times there are many answers approximately closer to the resulting value of the final answer so in such case we should choose the nearest value to that particular result.


10. Practice as much as you can!


For the scoring good in the entire section of Physics you need to practice as many questions you can.

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