Mechanics

Have you ever looked at the Moon and noticed that its shape seems to change from one night to another? Sometimes the Moon appears as a bright circle, while at other times it looks like a thin curved line. On some nights, it may not be visible at all. These changing appearances are called the … Read more

Since, our childhood we have been taught that the Earth is moving and is not only revolving around the Sun but also around its own axis. By watching, how Sun appears to be moving throughout the day, we can conclude that at least something is in motion. This apparent movement of the sun is what … Read more

The Newton’s Cradle is a device that beautifully showcases the conservation of momentum.  Before explaining how Newton’s Cradle work, let’s  first understand the concept of momentum. What is momentum? Momentum is a characteristic of moving objects that describes how much “oomph” they have when they’re in motion. It’s like how a heavy truck is harder … Read more

We often use the word ‘power’ in our common usage to describe something strong and full of energy. However in physics, power has a very specific meaning. It is described as the amount of energy transferred per unit of time. As you know that unit of energy is joule. Power is defined as: Power = … Read more

Energy is one of most fundamental concepts in science. In fact, all known phenomena involve some form of energy. Energy comes in several different forms such as chemical energy, thermal energy, nuclear energy, radiation energy, magnetic energy etc. However in terms of motion of the two objects, the energy is categorized into two types namely; … Read more