Thermodynamics is a branch of Physics that deals with the macroscopic variables like Temperature, Pressure, Volume, etc. of a system. These types of systems are known as Thermodynamic systems. There are four laws for these thermodynamic systems – Zeroth Law, First Law, Second Law and Third Law. We already have discussed the Zeroth law, second … Read more
To write a decimal number in short, we need to round off the numbers up to some significant figures. Suppose we have to present a long decimal number 65.3452343….. up to two or three significant figures after the decimal. This may look very easy, but it is not the case. There are some rules to … Read more
We need a statistical approach to deal with a system containing a large number of particles. Because of the mutual interactions between the particles, it is impossible to know the dynamics of such a number of particles together simply by solving their equations of motion. Statistical Mechanics gives better results for complicated systems. We can … Read more
We already know that the center of mass of a body is a point inside the body where its entire mass is situated. A moving body can have two other center of mass – Velocity of center of mass and acceleration of center of mass. In another article, we have discussed the velocity center of … Read more
There are three basic passive circuit components – Resistor, Capacitor and Inductor. One can find the voltage drop across a resistor simply by using Ohm’s law of current electricity. In another article, we have discussed different ways to find the voltage drop across a capacitor. Here I’m going to explain the formula and polarity of … Read more
Work is one of the popular words in our daily life. The word work means to do something. We need some energy to do work for us. Physics also says that some external energy is required to do a work. But, the Work done in Physics is different from the work we know in our … Read more
All bodies consist of a large number of point masses. The mass of an entire body is the sum of the masses of those points. Now, there must be a central point in a body. If the body is symmetric and has a uniform density, then the central point is the center of mass of … Read more
We know that the center of mass of a body is a point inside it where the entire mass of the body is situated. For a uniform and symmetric body, its center of mass is exactly its middle point. Now, when the body moves, its center of mass also moves. So, the center of mass … Read more
A particle is said to be in motion if it changes its position with time. The particle may go straight, may move in a circular path, may spin around an axis, or may roll on the floor. Considering these different ways of changing its position, Scientists have said that a particle can have three types … Read more
Pressure is a physical quantity that has wide uses in Science, especially, in fluid mechanics and hydrostatics. We need to deal with the pressure to know the nature of the flow of a fluid, to measure the amount of stress that a body can handle, to get forecast of weather, to study the behavior of … Read more