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Simple Harmonic Motion
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Natures follows periodicity. The day and night, fhe and death everything is repetitive. Periodic motion is the motion is the motion that repeats itself after a fixed period of time. There are many type of periodic motion; some of them is simple harmonic motion. In SHM, displacement velocity and acceleration all are sinusoids. I,e The can be represented in graphs important an fascinating chapter of mechanics.It is a motion that repeats itself after regular time interval such that the force acting on it is directed towards a point over the linen (which it executes motion) and th
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on 27 Dec 2008 10:43:36 IST
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Gravitation
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For making a body revolve, a centripetal force is required. In case of earth-sun system there exists a new type of force called 'gravitational force' which is responsible for it. This force is always attractive in nature. In this unit we will study in detail about this force and also calculate the velocities with which a body must be projected from earth's surface. So that it never comes back to earth surface.NEWTONS LAW OF GRAVITATION: It states that every particle in the universe attracts every other particle with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between the
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on 27 Dec 2008 10:27:50 IST
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Center of Mass, Momemtum, Collision
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Introduction > Center of Mass, Momemtum, Collision:Everybody in his/her childhood had played with “HIT-ME” at least once. Remember the toy, which no matter how much you punch it, never goes down! A truck however slow it may be, can cause casuality to any person to which it collides while a bicycle cannot cause much of a problem though it speed was quite high! Why does a rubber ball, a plastic ball, a super ball, all retract to different heights even though thrown from same height initially?The Answer to all such queries lies in this chapter which opens new insight. CENTER OF MASS: It is the point
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on 27 Dec 2008 10:09:48 IST
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Work Power & Energy
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Tutorial on Work, Power & Energy:The concept of work-energy is universal and is applicable almost in all fields of physics, engineering chemistry, biology etc. However here we analyze the application of work concept in Mechanics. ‘Work’ has much more in it then just a language tool. For example, if a person is holding an object, he gets tired but still does no work. Here we will analyze such myths and also explore the term power. We will also gain an insight into energy approach for solving mechanics problems which were tedious to solve using Newton’s law.WorK:When ever force acting on a body is able to actually move it through some distance in
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on 27 Dec 2008 09:35:19 IST
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Newton's Laws Of Motion
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Newton proved Aristotle wrong using the laws described in this chapter. Aristotle theory of bodies coming to their “natural states” was argued upon by Newton . And so did Newton manifest his three universal but basic laws which are of central importance in classical physics. These laws form the basis for a large no of principles and interpretations.Pope Once said “Nature and Nature’s laws lay hid in night. God said ‘Let Newton be’ -and all was light”. NEWTON'S LAWS There are four types of forces: 1) Gravitational forc
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on 26 Dec 2008 17:58:39 IST
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Experimental Physics
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Expermental Physics Tutorial:Science is all about experiments, all the hypothesis become a law only if they are justified experimentally. Experimentation involves lots of terms like accuracy, precision etc. and all the observations and corresponding values obtained are merely approximate, however the level of approximation depends upon the appartus. In this unit we will explore all about errors and then and then move on to another powerful tool called dimensional analysis. while closing the chapter we look at few experiment that are used to determine few physical quantities.Unit Conversion
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on 26 Dec 2008 17:38:50 IST
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