British Thermal Unit in Physics   It is the amount of heat that is required to rise the temperature of 1 pound of pure water from 63F To 64F.   What about audiobooks and narrated books? If you consider listening to audiobooks or reading 10-sentence summaries to be a complete reading, then you have not…

Definition of Inclined Plane   A heavy load can be lifted more easily by pulling it along a slope rather than by lifting in vertically. Such a slope is called an Inclined Plane.   Mechanical Advantage:   M.A = W/P = l/ h = Length of Inclined Plane/Perpendicular Height   People died for books. They…

Three Kinds of Levers   First Kind of Lever:   In the first kind of lever, the fulcrum F is in the between the t, effort P and Weight W.   Examples   – Physical Balance – Handle of Pump   – Pair of Scissors   – See Saw     Second Kind of Lever:…

Principle of the Lever   In the lever the moment P acts opposite to that of work W. It means that force F tends to rotate the lever in one direction which the weight W rotates in opposite direction. If the magnitude of these moments acting in opposite direction is equal, then the lever will…

Definition of Lever   Lever is the simplest machine in the world. It is a rigid bar, which can be rotated about a fixed point.   And that the book can be read with the ears? – People who are not familiar with modern technologies may ask my previous articles and sections of this book.…

Define Machine in Physics   A machine is a device by means of which useful work can be performed conveniently and it can also transfer one form of energy into another form of energy.   Mechanical Advantage:   The ratio between the resistance or weight to the power applied in a machine is called the…

Hooke’s Law in Physics   Hooke’s Law states that the extension or compression of a spring is directly proportional to the force acting on it provided the elastic limit of the spring has not been exceeded.     Definitions:   Joule:   It is the work done by a force of one Newton when the…

Law of Conservation of Energy   Law of Conservation of Energy   Statement:   The law of conservation of energy states that “Energy may neither be created nor destroyed, it can only change shape”   Explanation: Consider a body of mass “m” at height “h” above the ground. Its kinetic energy   at that point…

Elasticity in Physics   Elasticity is the ability of an object to return to its original shape and size after the applied external force applied into it has been removed.   Read books instead of others. +Also, in continuation of the previous two thoughts: “To treat the intolerance of books by ear” and “To show…

Definition of Kinetic Energy in Physics   Kinetic energy is energy acquired by an object during movement.   E = 1/2 mv2   Where:   E = kinetic energy [J] m = mass [kg]   v = velocity of the object [m s-I]   Of course, you should not read a book that you are…