The board exams ends with the beggining of our long vacations. And like me people make dizzying plans which remain a mere thought! " I will read the books for the new session, i will give SAT test, i will join some club, i will go on for trips with my friends........and something interactive!" And by the end of the vacations we have hardly done any of the tasks!

I too had the same problem!But now i have got a resolution.Firstly we need to know what summer vacations are for? They are for studying to be prepared for the next session? joining coaching centres?or to give some rest to people in intense heat of june& july? I might say yes to all the questions but i would qualify my statement by stating that we need to plan our vacations carefully instead of wavering & trying to do all the things, this is almost impossible!Choose any single thing and plan in a way that you have almost a month free. Even if you do single thing, the real pleasure is when you do it complete! Believe me never think you are short of tasks, always remember you have a month extra and it is when you can do as many things as you wish!

Although i never did what i ve discovered, this vacations am doing the same and with this planning i hope it would turn out to be the best vacations ever!

Important definitions and formulas for Physics_AS

These are extremely important points which you must know. These all points will be covered in two posts. Note them.
1)SI unit_ a system of units internationally accepted.
2)Base unit_ units for basic physical quantities.
3)Dimensions_relationship between physical and derived quantities.
4)Unit for young modulus_kgm^-1s^-2.
5)Reading_ single determination of the value of an unknown quantity.
6)Measurement_ Final result of analysis of series of readings.
7)Moment of force_ turning effect of force or torque.
8)Couple_ consists of two forces acting on an object of same magnitude but not in the same line.
9)Centre of gravity_ where the weight of an object is assumed to act.
10)One Newton_ It is defined as a force when which acts of a body of mass, m, produces an acceleration of 1m/s.
11)Formula for pressure on the wall_ P=pv^2, (p=density)
12)Work done = Fs cos0 (0= theta).
13)One joule_ it’s the work done by a force of 1 newton when its point of application is displaced a distance of 1m in direction of force.Next post covering other points will be published shortly on the blog.

More definitions for physics_AS

These are probably the points I noted down and memorized them. They are good for revision.

1) Work done by a gas_ W= pressure * change in volume
2) Power_ force*velocity (very important)
3) One watt_ one watt is the power expended when 1 joule of work is done in 1 second.
4) Elasticity_ It’s the property of the body which enables the body to regain its position when the deforming force is removed.
5) Transverse waves_ The motion of oscillation is perpendicular to the wave motion.
6) Polarization_ The oscillations are made to move in single plane only.
7) Interference of waves_ It’s the effect produced by the superposition of two coherent waves passing through the same region.
8) Intensity_ It’s the rate at which energy is transferred by the wave to the unit area which is perpendicular to the direction of the propagation of wave. Point to be noted__ Intensity is directly proportional to the Square of frequency and Square of amplitude.
9) Potential difference_ P.d between the two points is the energy dissipated when 1 coloumb of charge flows from one point to another.
10) Electromotive force_ It’s the energy supplied from source to each coloumb charge to drive the charge round the complete circuit.
11) Ohm_ It’s the resistance of the conductor if when a current of 1A flows through it, the voltage across it is 1 volt.
12) Kirchhoff’s 1st law_ The algebraic sum of currents entering a junction in a circuit is zero.
13) Kirchhoff’s 2nd law_ Round a closed loop the algebraic sum of E.M.Fs is equal to the algebraic sum of the products of current & resistance.This post & the previous one almost cover all the definitions important for exams.