Skip to main content

How to Solve Any Physics Problem.

Mdcat preparations 
 There is a very simply and logical flow process to solving any physics problem.

Steps

  1. 1
    Calm down. It is just a problem, not the end of the world!
  2. 2
    Read through the problem once. If it is a long problem, read and understand it in parts till you get even a slight understanding of what is going on.
3.   Draw a diagram. It cannot be emphasized enough how much easier a problem will be once it is drawn out. Ideally, a free body diagram is what you will draw, but even drawing how you imagine the wording of the problem inside your head (like a chart maybe) will make solving this problem easier. There are often marks awarded for drawing a correct diagram. Once you are done with this, try to bring this drawing into motion like a movie if you can. This is not really necessary but will give you a clear understanding of what is happening in the problem.

  1. List down anything that is given to you to the side under a category labeled "known". e.g. you are given two velocities. Label the first V1 and set it equal to the value given. Label the other value V2 and set it equal to the value provided for it.
  2. 5
    Look for the unknown variables. Ask yourself, 'What am I solving for?' and 'What are the unknown variables in this problem?' List these to the side as well under a category labeled "unknown".
  3. 6
    List formula that you think might be applicable to this problem. If you are able to look up equations you do not remember exactly and think might be applicable to the problem, do so and write them down.
  4. 7
    Pick the right formula. At times there may be different formulas for the same set of variables and you may be confused as to which one to use. Hence when you memorize the formula, also remember the conditions in which they hold good ( conditions under which that formula can be applied). for example: - v = u + at can be applied only when the acceleration is constant. So in a question if the acceleration is not constant, you will know you are not supposed to use this equation here. This may also help to increase the subject understanding in general.
  5. 8
    Solve the equations. Take your formula and try to solve for one variable at a time. Solve for each variable that is listed under the "unknown" category. Try to solve for variables that you can determine easily first.
  6. 9
    Keep repeating the last step for each unknown quantity in turn. If you can't do one, try others first as you may be able to work it out when you have information from other answers.
  7. 10
    Put a box, circle, or underline your answer to make your work neat.

Plz share this with your friends and teachers 
On Facebook page groups WhatsApp. 
 Follow me for more updates.

Comments

Post a Comment

Popular posts from this blog

Deoxyribonucleic acid (DNA)

Deoxyribonucleic acid (DNA) DNA is heredity material. It controls the properties and potential activities of a cell. Location in cell DNA occurs in chromosomes, in the nuclei of the cells and in much lesser amounts in mitochondria and chloroplast. Chemical composition of DNA DNA is made of four kinds of  nucleotides; d-adenosine monophosphate (d-AMP) d-guanosine monophosphate (d-GMP) d-cytidine monophosphate (d-CMP) d-thymidine monophosphate (d-TMP) These nucleotides are united with one another through phosphodiester linkages in a specific sequence to form long chains. Two nucleotides join to form  dinucleotide  e.g nicotinamide adenine dinucleotide  (NAD) which is important coenzyme in several oxidation-reduction reactions in the cell. Three nucleotides join to form  trinucleotide . Ratio of Bases in DNA In 1951,  Erwin Chargaff  provided data about the ratios of different bases present in DNA. This data suggested that ade...
Post a Comment
Read more

Mr chips important short questions.

Chapter#1 Question # 1:How does a person spend his time in old age after retirement? Answer : After retirement when a person becomes old, he has nothing to do. His time seems to pass like lazy cattle moving across a landscape(valley). Question # 2:Why did Chips keep on adjusting his timetable according to the school bells even after the retirement? Answer : After spending more than forty three(43) years at Brookfield, it was not possible for Chips to break his ties with school. He began to live across the road and Mrs. Wickets. That's why it was possible for Chips to keep on adjusting his timetable according to the school bells. Question # 3:How did Chips voice sound in old age? Answer : Although Chips had become old yet he did not loose the zeal and zeast for the life. So his voice remained resonant and lively even in his old age. Question # 4:What did Chips do before going to the bed? Answer : Chips was spending a pleasant and placid time at Mrs. Wickets after his retirem...
Post a Comment
Read more
What are zymogens? How they are formed? What Is a Zymogen?   A zymogen is like a wrapped candy bar. In order to get to the good stuff, you need to tear away what's keeping you from it.  Zymogens , or  proenzymes , are enzymes that aren't functioning yet because their action is infertile by a 'wrapper'. The 'wrapper' can be a link between two  amino acids  (the building blocks of proteins), like a piece of string keeping a box closed. Or it can be an further section of protein, like a jar lid. How they are formed? When cells make enzymes, especially proteases, they often make them as zymogen, an inactive form of the enzyme. This is so they don't go crazy and are only used when needed. Imagine your reaction if your blender suddenly hopped about on the counter, out of control, spewing half-chopped fruit everywhere. The counter would be a mess, and so would the cell. You can recognize most zymogens by their name. Enzymes that begin with ...
Post a Comment
Read more