Why do navigators, adventurers and travelers, usually keep a compass in their pocket? Well, it is to get a sense of direction during their journey. Compass contains a magnetic needle that has a north and south pole. This aids in detecting the direction of where one should move. A magnet is an object which produces …
Electricity is a boon to mankind! We have studied the conduction of electricity in the previous chapter. The electric current-carrying wires behave like a magnet. There is a close connection between electricity and magnetism. This connection between electricity and magnetism is called the “Electromagnetism”. Several appliances work on this incredible phenomenon. Curious enough to learn …
Magnetic Effect of Electric Current and Electromagnetic Induction Read More »
On a hot sunny day, you return home covered in sweat only to see that there is no electricity and hence no Air Conditioner. What would it feel like? Electricity has become a modern necessity for humans because it is a controllable and convenient form of energy. Ever wondered how does electricity flow in an …
Take this experiment. Walk towards the electrical switch board in your house. Switch on the light. Now think, how did electricity travel from the switch board to the light bulb? Electricity has changed the ways we work. Everything is dependent on electricity. This lesson is dedicated towards learning electric current and effects. Let’s begin
On a hot sunny day, air conditioners are the saviours. While on a cold snowy day, radiators make us feel comfortable. Both appliances run on electricity. Today we cannot imagine our lives without electricity. Right from a small electric bulb to huge equipment in industries, there are numerous devices that work on electricity. Metals like …
Basics of Electricity and Electric Current – Part 1 Read More »
How to tell if something is hot or cold? By the sense of touch! Touching a hot pan will let you know that the pan is hot and holding an ice-cream will let you know that it is cold. In this chapter, we will run through the science of HEAT. How do we measure it? …
Science always deals with tricks and tips that leave our minds baffled. For example – the term ‘work’ in regular world means – “activity involving mental or physical effort done in order to achieve a purpose or result.” Simple, isn’t it? But what if we tell you that ‘work’ in scientific term means – “is …
Imagine you are taking a walk, and you see a banana peel lying on the road. You tend to skip it. And why is that so? Well, the answer lies in the SCIENCE of friction. It is a type of force that resists the movement of one surface on the other. It is the Friction …
The tyre of the car bears the entire weight of the car. But is it the tyre that bears the weight? Nope! It is the air in the tyre. Where are we going with this? This scenario is a typical example of the use of the concept of Pressure in our daily lives! There are …
You may have heard of the great scientist – Archimedes. He invented the science of mechanics and hydrostatics, gave us one of the most fundamental concepts of physics – the centre of gravity. Isaac Newton discovered the concept of Gravity. It is with this concept that we can study why everything that is thrown upwards …
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