Physics Study Diary for IIT JEE 2011 - Ch.3 Rest and Motion

I am planning to study the Physics chapters as per the study plan that I have given. This study would be of help to me in preparing JEE Level Revision problem set for each chapter.

Today (19.5.2009) I did the following portion

Day 1

3.1 Rest and Motion
3.2 Distance and displacement
Ex. 3.1
3.3 average speed and instantaneous speed
Ex. 3.2,3.3
Worked out examples 1,2

Points to note.

3.1 Rest and Motion

Motion is a combined property of the object under study and the observer. There is no meaning of rest or motion without the viewer.

To identify the rest or motion, we need to locate the position of a particle with respect to a frame of reference. The frame of reference will have three mutually perpendicular axes (X-Y-Z) and the particle can be represented by coordinates x,y,z.
If all coordinates remain unchanged as time passes, we say that particle is at rest. If there is change in any of the coordinates with time, we say the particle or the body represented by the particle is having motion.

I some problems or situations frame of reference is specifically mentioned. Otherwise the frame of reference is understood more easily from the context.

Figure 1: A man with a pistol threatening and asking people not to move.


3.2 Distance and Displacement

If a particle moves from position A to Position B in time t, displacement is the length of the straight line joining A to B. The direction of a vector representing this displacement is from A to B. Displacement is a vector quantity. It has both magnitude and direction.

In the movement between positions A and B the particle may take the path ACB. The length of the path ACB will be distance travelled by the particle. It is only scalar quantity. It has not direction.

3.3 Average speed and Instantaneous speed

The average speed of a particle in a specific time interval is defined as the distance travelled by the particle divided by the time interval.

We can plot the distance s as a function of time. In this graph, the instantaneous speed at time t equals the slope of the tangent at the time t. The average speed in a time interval t to t+Δt become equal to the slope of the chord Δs/Δt. As Δt becomes approaches zero, this average speed becomes instantaneous speed and ds/dt becomes the instantaneous speed.

If we plot a speed versus time graph ( v versus t), the distance travelled in time t (t1 to t2) will be equal to the area bounded by the curve v = f(t), x axis, and the two ordinates t = t1 and t = t2.

In terms of integration it can be represented as s = ∫vdt from t1 to t2



For study plan for IIT JEE 2011 for the year 2009-10

http://iit-jee-2011.blogspot.com/2009/04/it-jee-2011-annual-study-plan-for.html

Nobel Prize Winners in Physics from 1901-1925 - IIT JEE - Extra-curricular Study

Year   Physics  


1901 Röntgen, Wilhelm Conrad
For discovery of X-rays

1902 Lorentz, Hendrik A.
Zeeman, Pieter


1903 Becquerel, Henri;
Curie, Pierre;
Curie, Marie
1904 Rayleigh, Lord

1905 Lenard, Philipp
1906 Thomson, J. J.

1907 Michelson, Albert A.

1908 Lippmann, Gabriel

1909 Braun, Ferdinand
Marconi, Guglielmo
1910 van der Waals, Johannes Diderik
1911 Wien, Wilhelm

1912 Dalén, Gustaf

1913 Onnes, Heike Kamerlingh
1914 von Laue, Max
1915 Bragg, William Henry:
Bragg, William Lawrence
1916 None
1917 Barkla, Charles Glover

1918 Planck, Max
1919 Stark, Johannes
1920 Guillaume, Charles Edouard
1921 Einstein, Albert

1922 Bohr, Niels

1923 Millikan, Robert A.

1924 Siegbahn, Manne
1925 Franck, James
Hertz, Gustav








Sources

http://nobelprize.org/nobel_prizes/physics/laureates/http://history1900s.about.com/library/misc/blnobelphysics.htm

Noble Prize Winners in Physics from 2001 - IIT JEE - Extra-curricular Study

Year - Scientist/Physicist

2001 - Eric A. Cornell, Carl E. Wieman, (US), Wolfgang Ketterle (Germany)


2002 - Riccardo Giacconi, Rayond Davis Jr. (US), Masatoshi Koshiba (Jap)

2003 - Alexei A. Abrikov,(US-Rus), Vitaly I. Ginzburg (Rus). Anthony J. Leggett, (UK-US)

2004 - David J. Gross, H. David Politzer, Frank Wilczek (US)

2005 - Roy glauber, John Hall (both US), and Theodor Haensch (Germany)

2006

2007

2008

IIT JEE 2010 Syllabus for Physics

IIT JEE 2010 syllabus will be available only when the JEE advertisment is released. You have to prepared using JEE 2009 syllabus up to that time.

Memory Maps for IIT JEE Physics - Mental Map

Memory is map linking one concept to another concept. Mind map or mental map helps in your memorizing things.

Let me try to identify main concepts in each chapter and link them to more concepts related to each of them


Chapters from "Concepts of Physics Part I and II" by H C Verma




Chapters

1. Introduction to physics

Physics - Understanding nature - Mathematics - Units - Dimensions

Units - Fundamental quantities - Derived quanties - SI units - SI Prefixes

SI Units - Metre - Kilogram - Second - Ampere - Kelvin - Mole

Dimension - Homogenuity - Conversion of Units

Understanding Nature - Structure of world

Order of magnitude


2. Physics and mathematics


3. Rest and motion :kinematics

Rest - Motion – displacement – Speed – Velocity – Acceleration – Frame of Reference

Displacement – Distance moved

Speed - average speed - instantaneous speed

Velocity - Average velocity - instantaneous velocity – Acceleration

Acceleration - Average acceleration - instantaneous acceleration

Motion - straight line - Motion in a plane - Projectile motion

Frame of Reference – Change in Frame of Reference




4. The forces

Forces - Gravitational forces - Electromagnetic (EM) forces - Nuclear Forces - Weak forces - Scope of Classical physics

Gravitational forces - G (universal constant 6.67 *106-11 N-m^2/kg^2) – Acceleration due to gravity g = GM/R^2) - Spherical body treated as a point mass at their centres

Electromagnetic (EM) forces – Coulomb forces – Forces between two surfaces in contact – Tension in a string or rope – Force due to a spring

Nuclear Forces – Exerted when interacting particles are protons or neutrons

Weak forces – Forces responsible for beta decay – antinutrino - positron

Scope of Classical physics – Applicable to bodies of linear sizes greater than 10^-6 m – Subatomic bodies – Quantum physics applicable – If the velocity of bodies are comparable to 3*10^* m/s relativistic mechanics is applicable.

5. Newtons law of motion

Newtons laws of motion - First law - second law - third law - Pseudo forces - Inertia

Newton's First law – Inertial frame of reference – Earth - Noninertial frame of reference

Newton's second law –( f = ma) - Freebody diagram

Newton's third law of motion – action - reaction

Pseudo forces – inertial forces

Inertia – a property which determines acceleration

6. Friction

Friction – Normal contact force – Friction - Kinetic friction - Static friction - Laws of friction - Atomic level friction – Rolling Friction


Kinetic friction – Opposite to motion – Coefficient of Kinetic friction –

Static friction - Limiting friction – Max. Static friction - Coefficient of static friction

Measurement of friction Coefficients- Horizontal table method – Inclined table method


7. Circular motion


Circular motion - Angular variables - Unit vectors along the radius and the tangent – Acceleration - Banking of roads in circular turns - Centrifugal force – Effects of earth's rotation

Angular variables – Angular position – Angular velocity – Angular acceleration – tangential acceleration

Unit vectors along the radius and the tangent – Tangential Unit vectors - Radial Unit vectors

Acceleration – Uniform circular motion - Nonuniform circular motion

Effects of earth's rotation – Colatitude – apparent weight

8. Work and energy

Work and energy - Work - Kinetic energy - Work energy theorem - Potential energy - Conservative and nonconservative forces - Gravitational potential energy - Different forms of energy - Mass energy equivalence

Work - Calculation of work done -

Potential energy - Potential energy of a compressed or extended spring - Gravitational potential energy



9. Centre of mass,linear momentum,collision

Centre of mass, linear momentum, collision - Centre of mass - Motion of the Centre of mass - Linear momentum – Collision – Impulse

Centre of mass - Centre of mass of continuous bodies - Motion of the Centre of mass

Linear momentum - Its conservation principle - Rocket propulsion

Collision - Elastic collision in one dimension - Perfectly inelastic collision in one dimension - Coefficient of restitution - Elastic collision in two dimensions

Impulse - Impulsive force

10. Rotational mechanics
11. Gravitation
12. Simple harmonic motion
13. Fluid mechanics
14. Some mechanical properties of matter
15. Wave motion and waves on a string
16. Sound waves
17. Light waves
18. Geometrical optics
19. Optical instruments
20. Dispersion and spectra
21. Speed of light
22. Photometry
23. Heat and Temperature
24. Kinetic theory of Gases
25. Calorimetry
26. Laws of Thermodynamics
27. Specific Heat of Capacities of Gases
28. Heat transfer
29. Electric Field and Potential
30. Gauss's Law
31. Capacitors
32. Electric Current in Conductors
32. Thermal and Chemical effects of Electric Current
33. Thermal and Chemical Effects of Electric Current
34. Magentic Field
35. Magnetic field due to a Current
36. Permanent Magnets
37. Magnetic Properties of Matter
38. Electro Magentic Induction
39. Alternating current
40. electromagentic Waves
41. Electric Current through Gases
42. Photoelectric Effect and Waveparticle Duality
43. Bohr's Model and Physics of Atom
44. X-Rays
45. SemiConductors and Semiconductor Devices
46. Nucleus
47. The Special Theory of Relativity

Study Plan - Study Guide

I am posting a study plan for each of the chapter. The plan is of 20 days in which first 10 days is for study of the lesson and next 10 days is for revision and solving problems. A candidate must be able to master the chapter in these 20 days by solving every question and problem in the HC Verma text book. By taking a target of 3 chapters in each month for the detailed study 10 days each chapter, candidates can complete each text or one year's portion during the period May to December.

Click on the label HC Verma Study Guide for the plan of various chapters. I completed posting for many chapters of Book 1 and plan to complete for the required number of chapters by May 1.

Blog status

I started revising the study guides of each chapter by providing a 20 days schedule for the first time study and revision of the chapter. I posted the schedule for the first chapter today. I plan to do similar posting for all the chapters.