## Do We Really Need a Battery | Physics

Hey friends! Ever wondered, what drives the current in an electrical circuit? What’s the role of a battery we get at the electrical stores. For those of you, who are really fascinated by gadgets, electrical appliances, in this video we find out that do we really need a battery in a circuit. Let’s have a

## Introduction to Motion | Physics

Hello there! Now we’ll start the topic kinematics. So in kinematics what we’ll basically study is the ways to define motion. So the basic modules that we’ll be studying here in the next few topics is mechanics. So mechanics is divided into two main categories. The first one is the kinematics which we’ll start now.

## Kinetic Energy | Physics

Energy is available on earth in different forms. These forms are like kinetic energy, potential energy, electrical energy, heat energy etc. We know that a moving object can do work. An object which is moving faster does more work than an object moving relatively slow. Moving bullet, blowing wind, rotating wheel, a speeding stone all

## Seismograph | Physics

We know earthquake is a natural phenomena and it can be distructor. But can we measure the intensity of an earthquake? Yes! We can measure the intensity of the earthquake by using an instrument called seismograph. When shaking occurs in the earth crust it produces waves on the surface of earth, these waves are called

## Newton’s First Law | Physics

In this video we are going to learn about Newton’s laws. This is the most important topic in whole of physics. Before we start discussion on Newton’s laws, let me tell you two situations where you cannot apply Newton’s laws. First situation when the speed of objects is an appreciable fraction of the speed of

## Audible and Inaudible Sounds | Physics

Today, lets have an ear test and will find out the range of sound our ear can accommodate. Before starting the test, you can see a meter provided over here. Wherein you can note down the range of sound your ear can accommodate. I guess you all got the range of sound which you can

## Factors Affecting Friction | Physics

Hello student! In our previous lesson we were discussing about friction ; but at the end we were left with some intriguing questions right? Such as what are the factors affecting friction? Is it its size, shape or surface? Here in this video we are going to answer all these questions. So, let’s start answer

## Friction – A Necessary Evil | Physics

Can you imagine a world where in you’re walking for several hours and you’re not moving or you’re trying to drive a vehicle and it’s not moving. No, we can’t even live in such a way. In fact, we can’t even imagine a world without friction. Because without Friction, you can’t even walk and even

## Equation for Position Velocity Relation | Physics

Before we start this lesson, I recommend that you go through the lessons equations for position – time relation and equation for velocity – time relation. In this lesson, we’re going to learn about equation for position – velocity relation. Let’s start by understanding this graph This is a velocity time graph. You can see

## Equation for Position-Time Relation | Physics

Before we start this lesson, I recommend that you watch the video of the lesson in which we talked about the equation for velocity and time. In this particular lesson, we’re going to learn about the equation for position and time. Let’s start that by looking at this graph. You can see that this is