Types of energy

Chemical energy:-

Defination:-Chemical energy is a form of potential energy that is stored in the chemical bonds of molecules. When chemical reactions occur, these bonds are broken or formed, releasing or absorbing energy. Chemical energy is one of the most common and important forms of energy in our everyday lives and plays a crucial role in various natural and industrial processes.

Unit:-Joule

Formula: E = w + q

Examples:- Fossil fuels,Metabolism

Electrical energy

Defination:- Electrical energy is the energy produced or consumed by the flow of electric charge through a conducting medium, typically in the form of an electrical current. It is the product of the voltage (electrical potential difference) and the electric current flowing through a circuit

Unit:-Kwh

Formula:-VIT

Example:- Powering houses ,Industrial Appliances

Heat energy

Defination:- Heat energy is a form of energy that arises from the internal motion of atoms and molecules within a substance. It is a type of thermal energy that can be transferred from one object to another due to a temperature difference. When two objects at different temperatures are in contact, heat energy flows from the hotter object to the colder object until they reach thermal equilibrium.

Unit:- Joule

Formula:- MCT

Example:- Heating,Cooking

Magnetic energy

Defination:-Magnetic energy refers to the potential energy stored in a magnetic field due to the presence of magnetic materials or the movement of electric charges. It is one of the forms of energy associated with electromagnetism. The magnetic field is a region where magnetic forces are exerted on magnetic materials or moving electric charges.

Unit:-Tesla

Formula: F=q(V x B)

Example: Electromagnetics, Generators and Motors

Potential Energy

Definition:-Potential energy is a concept in physics that refers to the energy an object possesses due to its position or configuration relative to other objects. It is a scalar quantity and is usually measured in joules (J) in the International System of Units (SI). The potential energy of an object depends on factors such as its mass, its height above a reference point, and the force acting on it.

Unit:-Joule

Formula: mgh

Example:-Gravitational Astronomy, Energy storage

Kinetic Energy

Definition: Kinetic energy is the energy possessed by an object due to its motion. It is a scalar quantity and depends on both the mass and velocity of the object. When an object is in motion, it has the ability to do work and transfer energy to other objects upon collision or interaction.

Unit:-Joule

Formula: KE = ½mv2

Example:-Transportation, Sports recreation

Sound energy

Defination :-Sound energy refers to the form of energy produced when sound waves propagate through a medium, typically air. It is a type of mechanical energy, as it involves the movement of particles in the medium due to the compression and rarefaction of waves. Sound energy is a vital component of our daily lives, enabling us to communicate, perceive our surroundings, and enjoy music.

Unit:-Decible

Formula v = √(γ × P/ρ): -

Example:-Communication,Music

Mechanical energy

Defination:-Mechanical energy refers to the sum of both kinetic energy and potential energy within a system. It represents the energy associated with the motion and position of objects. Mechanical energy is particularly relevant in the context of classical mechanics and is essential in understanding the behavior of various mechanical systems.

Unit:-Newton meter

Formula:-K.E.+P.E.

Example:-Designing machinery;energy transfer in machinery

Light energy

Defination:-Light energy refers to the form of electromagnetic radiation that travels in waves and can be perceived by the human eye as visible light. It is a type of kinetic energy produced by the movement of photons, which are discrete packets of energy. Light energy can be generated by natural sources like the sun or artificial sources such as light bulbs and lasers.

Unit:- LUX

Formula:-HF

Example:-Photosynthesis,Vision

Nuclear energy

Defination:-Nuclear energy refers to the energy released during nuclear reactions. It is the energy that holds together the protons and neutrons within an atom's nucleus

Unit:-EV

Formula: E = Δmc2

Example:- Electricity generation, Space exploration

Gravitational energy

Definition: Gravitational energy, also known as gravitational potential energy, is the energy stored in an object due to its position in a gravitational field. It is the potential energy that an object possesses by virtue of its height above the reference level in a gravitational field.

Unit: N m 2 k g - 2

Formula:- Mgh

Example:-Hydropower Generation,Lifting and Lowering Loads

Law of conservation

Physics and Engineering Applications: The conservation of energy is a crucial principle in physics and engineering, guiding the analysis and understanding of various systems and phenomena.

Energy Conversion: The conservation of energy principle is fundamental in the design and operation of energy conversion systems. These systems are responsible for transforming one form of energy into another to meet various needs