Conversion of Energy

We will discuss about the conversion of energy from one form of energy to another form of energy.

Suppose, if we rub our palms they become warm. Due to rubbing our palms, the mechanical energy is converted into heat energy. Likewise, when two stones are rubbed sparks are produces.

When a workman rotates the sharpening wheel with his leg and places the edge of a knife or scissor on the wheel to sharpen. We see sparks which are produced due to friction.


1. Mechanical energy into heat energy

Here are some examples of conversion of mechanical energy into heat energy.

(i) When wood or coal is burnt in the hearth, heat is produced first and then light. Both heat and light energies are so closely related that the presence of one calls in the other.

(ii) When iron is heated, its colour changes from black to red and thus the heated iron beings to produce light. We know things become warm or even hot due to sunshine.



2. Electrical energy into heat energy

Here are some examples of conversion of electrical energy into heat energy.

(i) When electric current is passed through an electric heater, its wire is heated.

(ii) In an electric iron electrical energy is converted into heat energy and we can iron our clothes.

(iii) In an electric bulb, electrical energy is converted into heat first and then it begins to give light.



3. Mechanical energy into sound energy

Here are some examples of conversion of mechanical energy into sound energy

(i) When a batsman strikes a cricket-ball with his bat, a sound is produced and the ball goes away. Thus mechanical energy is partly changed into sound energy.

(ii) When a school-bell is rung, sound is produced. In doing so the mechanical energy changes into sound energy.







Fourth Grade

From Conversion of 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. Respiratory Balance Sheet | TCA Cycle | ATP Consumption Process

    Feb 18, 24 01:56 PM

    ATP Synthase in Mitochondria
    The major component that produced during the photosynthesis is Glucose which is further metabolised by the different metabolic pathways like glycolysis, Krebs cycle, TCA cycle and produces energy whic…

    Read More

  2. Electron Transport System and Oxidative Phosphorylation | ETC |Diagram

    Feb 04, 24 01:57 PM

    Electron Transport Chains
    It is also called ETC. Electron transfer means the process where one electron relocates from one atom to the other atom. Definition of electron transport chain - The biological process where a chains…

    Read More

  3. Tricarboxylic Acid Cycle | Krebs Cycle | Steps | End Products |Diagram

    Jan 28, 24 12:39 PM

    Aerobic Respiration
    This is a type of process which execute in a cyclical form and final common pathway for oxidation of Carbohydrates fat protein through which acetyl coenzyme a or acetyl CoA is completely oxidised to c…

    Read More

  4. Aerobic Respiration | Definition of Aerobic Respiration | Glycolysis

    Dec 15, 23 08:42 AM

    Aerobic Respiration
    This is a type of respiration where molecular free oxygen is used as the final acceptor and it is observed in cell. Site of Aerobic Respiration - Aerobic respiration is observed in most of the eukaryo…

    Read More

  5. Fermentation | Definition | Types of Fermentation | Application

    Nov 29, 23 10:27 PM

    Fermentation
    Definition of fermentation- It is a process that is energy yielding process of anaerobic oxidation of organic compounds which are carried out by the enzyme action of micro organisms where neither gase…

    Read More