Brownian Motion in Physics   In 1827, a scientist, Robert Brown observed the motion of molecules with the help of a microscope. He observed that the tiny particles in water are constantly moving in a zigzag path. He called the motion, Brownian Motion   Explanation:   The cause of this tiny particle motion is the…

Kinetic Molecular Theory of Matter   The Kinetic Molecular Theory of Matter has the following postulates:   Matter is made up of very small particles called molecules.   These molecules are in the same state of motion, hence they possess kinetic energy. Their motion can be translator, vibratory or rotational.   The molecules attract each…

What is Matter   Anything having mass and volume is called matter.   What does all this have to do with this book? +- A tired reader may notice, after more than 200 pages. Yes, the most direct. The material of this book is tied to teaching the reader, or at least making an attempt,…

Archimedes Principle   Archimedes Principle   Archimedes principle dictates that when an object is partially or fully immersed in a fluid, the object undergoes a buoyant force which is equal to the weight of the fluid   Displaced:   Buoyant force = Weight of fluid displaced = V g   where   V = volume…

Pascal’s Principle in Physics   Pascal’s Principle dictates that pressure which is exerted onto the surface of a fluid in a closed container will be transferred uniformly throughout the entire fluid.   All hydraulic systems are built based on Pascal’s Principle.   I strongly recommend that you familiarize yourself with them, tk. close in spirit.…

Gas Pressure in Physics   Gas Pressure can be measured using manometers and Bourdon gauges. In manometers, pressure can be calculated based on pressure equilibrium.   It’s another matter if you master a new method of obtaining and processing information, which you can practice without interrupting your daily routine. It is the receipt and processing…

Atmospheric Pressure in Physics   Atmospheric pressure is measured by barometers.   Atmospheric pressure measured by a simple mercury barometer can be calculated using the formula p = h g   Standard atmospheric pressure at sea level is usually 76 cm Hg or 10 m water. It can also be expressed as 1 bar.  …

Definition of Liquid Pressure   Are not dependent on the size or shape of the container; only on its depth     P = h g   Where:   P = pressure [Pa]   h = height of liquid [m]   = density of liquid [kg m-3]   g = gravitational acceleration [m s-2]  …

Definition of Pressure in Physics   Is the force which acts normal per unit area of contact.   P = F / A   Where:   P = pressure [Pa]   F = force [N]   A = area [m2]   As I said, all the figures given are approximate. You just need them to…

Pulley System in Physics   A pulley consists of a wheel mounted on an axle that is fixed to the framework called the block. The wheel can rotate freely in the block. The groove in the circumference prevents the string from slipping.   Fixed Pulley If the block of the pulley is fixed then it…