Category: 14. Energy

Introduction Energy is abundant in nature and it exists in multitudes of forms that can transform from one form of energy into another. These energies are mainly classified into potential and kinetic energy these energies can however be sub-divided into various other categories that have their own set of distinct functionalities and principles. These energies…

Introduction Thermal energy is mentioned as the energy that emerges from the matter temperature where the vibration of molecules leads to hot substances. Hence, the thermal energy is obtained higher. Joule is known as the unit used to calculate thermal energy and this energy is hardest to convert to any other form. Heat energy or…

Introduction Solar energy has been utilised for more than 2700 years for cooking, heating and other important applications that create a life more effectively. The Sun is powerful and has always been a crucial resource for humanity where the energy of the sun is considered to be inexhaustible. Solar energy possesses a positive impact on…

Introduction Solar cars used solar energy and it has different benefits. Solar cars use the energy of the sun and make a charge through the energy. It is created through the energy of the sun and great developed technology is needed for this. It is a pollution-free concept and makes less noise than traditional cars.…

Introduction Before getting an idea of the relationship that exhibits between the electron volt and joule, we first need to define what is defined as units. In Physics, the term unit is used as a standard of measurement for several physical quantities. Units are used in building up a relationship among the different measures of…

Introduction Kinetic energy is the energy related to motion. For an object which is stationary, there is no kinetic energy. In this article, we are not talking about any energy change. For example, water is converted to heat energy and thus steam when heated. We can find many such energy changes in the environment and…

Introduction Every matter in the universe is composed of tiny particles called molecules. They attract each other with some attractive force. There exists an intermolecular force of attraction between molecules. All matters in the universe are considered as a physical system. These are analyzed by the laws of physics. Every object in the universe cannot…

Introduction In our daily life, we experience many kinds of collisions. For example, in cricket, a ball collides with the bat. The direction of the ball and bat is towards each other before the collision and after the collision the energy, speed, and direction of the ball change. In a collision, the interaction between the…

Introduction From ancient times, sunlight was used as a source of energy. It is believed that the knowledge of solar energy existed in some of the oldest civilizations like the Greeks, and Romans, though they have not used it for cooking. Food can be made by using the sunlight this principle comes much later and…

Introduction Tidal energy is generally considered as a form of energy that can be renewable and has been provided by converting the energy that is obtained from tides into another form of power that is useful such as “electricity”. Tides are defined by “very long-period waves” that move through the ocean as a response to…