Energy

We will discuss here about energy.

We have seen in a rail shed or shipyard that huge cranes are engaged there in lifting very heavy articles and placing those articles to somewhere else. Similarly, we might have followed a small ant carrying a piece of food in its jaws, which is much heavier than the ant weighs itself. In both the cases some works are associated with and to perform this work, be it a huge machine or a tiny ant, it needs energy. So we can treat energy as an ability to do some work or an ability to make things happen. A machine gets the energy from fuel and a living organism gets it from food.

When you switch on a light, it glows. Here electrical energy is transformed into light energy. If we rub our palms against each other for a while, we w0ould feel hot. Here heat energy is generated from mechanical energy. From here we conclude that energy cannot be produced, it may only be transformed from one form to other.

In general, energy can be divided into seven forms. They are heat, light, sound, magnetic, electrical, mechanical, and chemical. But now we will discuss about the few forms of energy (i.e. solar energy, electrical energy and magnetic energy) and their usage.









Fifth Grade

From Energy to HOME PAGE


New! Comments

Have your say about what you just read! Leave me a comment in the box below.


Recent Articles

  1. Absorption of Digested Products | Absorption of Water | Nephrons

    Jul 09, 25 02:24 PM

    Villus
    Food and water is observed in different parts of the body and is distributed in different cells and tissues. Absorption of food is observed to be observed in the small intestine in the specific type o…

    Read More

  2. Eleventh Grade | Eleventh Grade Science | Eleventh Grade Math

    Jun 27, 25 12:26 AM

    Eleventh grade biology has been designed in accordance with the recommended topics. We will cover all the topics in biology very exciting and interesting way.

    Read More

  3. Explain Digestion of Food | Salivary Glands | Oesophagus | Stomach

    Jun 27, 25 12:20 AM

    Human Digestive System
    Before the digestion is start by the different enzymes secreted from the different digestive glands food must be turned and chut or mixed with saliva inside the mouth.

    Read More

  4. Explain Human Digestive System | Mouth | Tongue | Pharynx | Teeth

    Jun 21, 25 01:15 PM

    Tongue
    Digestive system is a system of alimentary canal and digestive glands. Alimentary canal- alimentary canal is a tube of variable diameter having muscular wall and glandular epithelial tissues which sta…

    Read More

  5. Vernalisation in Plants | Definition | Mechanism | Devernalization |

    Jun 18, 25 01:34 PM

    Photoperiod and Vernalisation
    Definition of vernalisation- The change of flowering habit due to the low temperature treatment is known as vernalisation. This is a physiological process which was denoted by Clipart in 1857 invite b…

    Read More