# data[].attributes.attachment_link.title
Chemical Energy - Work and Energy (CBSE Grade : 6 Science)

# data[].attributes.attachment_link.description
Chemical energy is the potential energy stored in the arrangement of atoms within molecules. Breaking chemical bonds requires energy, while forming new chemical bonds releases energy. The more energy that's released when a bond forms, the more stable that bond is.

# data[].attributes.body
Chemical energy may be released during a chemical reaction, often in the form of heat

# data[].attributes.attachment_link.title
ELASTIC POTENTIAL ENERGY WITH THE SCIENCE GEEKS

# data[].attributes.attachment_link.description
What is elastic potential energy? What materials can store elastic potential energy? Here are some eamples of elastic potential energy at work

# data[].attributes.body
Elastic energy occurs when objects are compressed and stretched, or generally deformed in any manner.

# data[].attributes.attachment_link.readable_text
What Is Electrical Energy?

Energy is the ability to do work, where work is done when a force moves an object. We need and we use energy every day, and energy is available in all different forms. Electrical energy is energy that's stored in charged particles within an electric field. Electric fields are simply areas surrounding a charged particle. In other words, charged particles create electric fields that exert force on other charged particles within the field. The electric field applies the force to the charged particle, causing it to move - in other words, to do work.

What Are Electric Fields?

Well, what are these electric fields? To better understand electrical energy, let's explore electric fields in a bit more detail. Electric fields are like gravitational fields in that both fields are areas surrounding an object that are influenced by the object. A gravitational field surrounds the earth, providing a force that pulls us down.

Likewise, electric fields surround charged sources and exert a force on other charged particles that are within the field. Have you ever heard the expression 'opposites attract'? This certainly applies to electric fields. The image below shows electric fields surrounding both positive and negative sources. The arrows you see illustrate the direction that a positive test charge would move if placed within the field.

Positive objects create electric fields that repel other positive objects; therefore, the arrows are pointing away from the positive source. Negative sources create electric fields that attract positive objects; therefore, the arrows you see are directed towards the negative source. It's very important to remember that the direction of the electric field always points in the direction that a positive particle would move within that field.

Electrical Energy Is Potential Energy

Electrical energy is potential energy, which is energy stored in an object due to the object's position. Well, in terms of electrical energy, the object is the charged particle, and the position is the location of that charged particle within the electric field. The charged particle will have the potential to move, or to do work, due to the force of the electric field.

This is much like the potential energy you would have if you rode your bike to the top of the hill. Muscular contractions in your leg muscles provide the energy to move that bike to the top of the hill. The higher you move up the hill, the more potential energy the bike will contain. At the top of the hill, gravity then provides a force that would move the bike back down the hill.

In a similar manner, to move a charge in an electric field against its natural direction of motion requires effort. For example, an external force is needed to move a positive test charge away from a negative source. The exertion of work by an external force would in turn add potential energy to the object, just like working hard to ride your bike up the hill. If the force holding the charge in place is removed, the charged particle will move within the field.

Now, effort is not required to move an object from its high potential energy location to a lower potential energy location. Just like you don't need energy to coast down a hill, the positive charge doesn't need energy to move towards the negative source. Both are natural processes. Rather, the stored potential energy due to the position of the charged particle is transformed into kinetic energy, which is energy of motion.

Applications of Electrical Energy

Now that we understand that electrical energy is the ability of a charged particle to move in an electric field, let's discuss the significance of electrical energy. Electrical energy can be used to move charged particles through a wire from a power plant to our homes and businesses. The movement of a charged particle through a wire is called current, or more commonly, electricity. Electricity is used to work various appliances in our homes.

# data[].attributes.attachment_link.keywords[]
what is electrical energy? - definition & examples - video & lesson transcript | study.com

# data[].attributes.attachment_link.title
What is Electrical Energy? - Definition & Examples - Video & Lesson Transcript | Study.com

# data[].attributes.attachment_link.description
Energy is the ability to do work, where work is done when a force moves an object. We need and we use energy every day, and energy is available in all different forms. Electrical energy is energy that's stored in charged particles within an electric field.

# data[].attributes.attachment_link.readable_text
What Is Electrical Energy?

Energy is the ability to do work, where work is done when a force moves an object. We need and we use energy every day, and energy is available in all different forms. Electrical energy is energy that's stored in charged particles within an electric field. Electric fields are simply areas surrounding a charged particle. In other words, charged particles create electric fields that exert force on other charged particles within the field. The electric field applies the force to the charged particle, causing it to move - in other words, to do work.

What Are Electric Fields?

Well, what are these electric fields? To better understand electrical energy, let's explore electric fields in a bit more detail. Electric fields are like gravitational fields in that both fields are areas surrounding an object that are influenced by the object. A gravitational field surrounds the earth, providing a force that pulls us down.

Likewise, electric fields surround charged sources and exert a force on other charged particles that are within the field. Have you ever heard the expression 'opposites attract'? This certainly applies to electric fields. The image below shows electric fields surrounding both positive and negative sources. The arrows you see illustrate the direction that a positive test charge would move if placed within the field.

Positive objects create electric fields that repel other positive objects; therefore, the arrows are pointing away from the positive source. Negative sources create electric fields that attract positive objects; therefore, the arrows you see are directed towards the negative source. It's very important to remember that the direction of the electric field always points in the direction that a positive particle would move within that field.

Electrical Energy Is Potential Energy

Electrical energy is potential energy, which is energy stored in an object due to the object's position. Well, in terms of electrical energy, the object is the charged particle, and the position is the location of that charged particle within the electric field. The charged particle will have the potential to move, or to do work, due to the force of the electric field.

This is much like the potential energy you would have if you rode your bike to the top of the hill. Muscular contractions in your leg muscles provide the energy to move that bike to the top of the hill. The higher you move up the hill, the more potential energy the bike will contain. At the top of the hill, gravity then provides a force that would move the bike back down the hill.

In a similar manner, to move a charge in an electric field against its natural direction of motion requires effort. For example, an external force is needed to move a positive test charge away from a negative source. The exertion of work by an external force would in turn add potential energy to the object, just like working hard to ride your bike up the hill. If the force holding the charge in place is removed, the charged particle will move within the field.

Now, effort is not required to move an object from its high potential energy location to a lower potential energy location. Just like you don't need energy to coast down a hill, the positive charge doesn't need energy to move towards the negative source. Both are natural processes. Rather, the stored potential energy due to the position of the charged particle is transformed into kinetic energy, which is energy of motion.

Applications of Electrical Energy

Now that we understand that electrical energy is the ability of a charged particle to move in an electric field, let's discuss the significance of electrical energy. Electrical energy can be used to move charged particles through a wire from a power plant to our homes and businesses. The movement of a charged particle through a wire is called current, or more commonly, electricity. Electricity is used to work various appliances in our homes.

# data[].attributes.attachment_link.keywords[]
what is electrical energy? - definition & examples - video & lesson transcript | study.com

# data[].attributes.attachment_link.title
What is Electrical Energy? - Definition & Examples - Video & Lesson Transcript | Study.com

# data[].attributes.attachment_link.description
Energy is the ability to do work, where work is done when a force moves an object. We need and we use energy every day, and energy is available in all different forms. Electrical energy is energy that's stored in charged particles within an electric field.

# data[].attributes.body
The movement of a charged particle through a wire is called current, or more commonly, electricity. Electricity is used to work various appliances in our homes.

# data[].attributes.attachment_link.title
What Is An Example Of An Electromagnetic Energy?

# data[].attributes.attachment_link.description
The high example sentences with the word electromagnetic. Define electromagnetic energy at examples soft schools softschools electromagnetic_energy_examples 158 url? Q webcache. 03 radiation originating in a varying electromagnetic field; For example, long and short radio wavesx radiation and gamma rays all these devices make use of electromagnetic waves.

# data[].attributes.attachment_link.readable_text
Electromagnetic (EM) radiation is a form of energy that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma rays. Sunlight is also a form of EM energy, but visible light is only a small portion of the EM spectrum, which contains a broad range of electromagnetic wavelengths.

Electromagnetic theory

Electricity and magnetism were once thought to be separate forces. However, in 1873, Scottish physicist James Clerk Maxwell developed a unified theory of electromagnetism. The study of electromagnetism deals with how electrically charged particles interact with each other and with magnetic fields.

There are four main electromagnetic interactions:

The force of attraction or repulsion between electric charges is inversely proportional to the square of the distance between them.

Magnetic poles come in pairs that attract and repel each other, much as electric charges do.

An electric current in a wire produces a magnetic field whose direction depends on the direction of the current.

A moving electric field produces a magnetic field, and vice versa.

Maxwell also developed a set of formulas, called Maxwell's equations, to describe these phenomena.

Waves and fields

EM radiation is created when an atomic particle, such as an electron, is accelerated by an electric field, causing it to move. The movement produces oscillating electric and magnetic fields, which travel at right angles to each other in a bundle of light energy called a photon. Photons travel in harmonic waves at the fastest speed possible in the universe: 186,282 miles per second (299,792,458 meters per second) in a vacuum, also known as the speed of light. The waves have certain characteristics, given as frequency, wavelength or energy.

(Image credit: NOAA.)

A wavelength is the distance between two consecutive peaks of a wave. This distance is given in meters (m) or fractions thereof. Frequency is the number of waves that form in a given length of time. It is usually measured as the number of wave cycles per second, or hertz (Hz). A short wavelength means that the frequency will be higher because one cycle can pass in a shorter amount of time, according to the University of Wisconsin. Similarly, a longer wavelength has a lower frequency because each cycle takes longer to complete.

The EM spectrum

EM radiation spans an enormous range of wavelengths and frequencies. This range is known as the electromagnetic spectrum. The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays. Typically, lower-energy radiation, such as radio waves, is expressed as frequency; microwaves, infrared, visible and UV light are usually expressed as wavelength; and higher-energy radiation, such as X-rays and gamma rays, is expressed in terms of energy per photon.

(Image credit: Biro Emoke Shutterstock)

Radio waves

Radio waves are at the lowest range of the EM spectrum, with frequencies of up to about 30 billion hertz, or 30 gigahertz (GHz), and wavelengths greater than about 10 millimeters (0.4 inches). Radio is used primarily for communications including voice, data and entertainment media.

Microwaves

Microwaves fall in the range of the EM spectrum between radio and IR. They have frequencies from about 3 GHz up to about 30 trillion hertz, or 30 terahertz (THz), and wavelengths of about 10 mm (0.4 inches) to 100 micrometers (μm), or 0.004 inches. Microwaves are used for high-bandwidth communications, radar and as a heat source for microwave ovens and industrial applications.

Infrared

Infrared is in the range of the EM spectrum between microwaves and visible light. IR has frequencies from about 30 THz up to about 400 THz and wavelengths of about 100 μm (0.004 inches) to 740 nanometers (nm), or 0.00003 inches. IR light is invisible to human eyes, but we can feel it as heat if the intensity is sufficient.

Visible light

Visible light is found in the middle of the EM spectrum, between IR and UV. It has frequencies of about 400 THz to 800 THz and wavelengths of about 740 nm (0.00003 inches) to 380 nm (.000015 inches). More generally, visible light is defined as the wavelengths that are visible to most human eyes.

Ultraviolet

Ultraviolet light is in the range of the EM spectrum between visible light and X-rays. It has frequencies of about 8 × 10 ¹⁴ to 3 × 10 ¹⁶ Hz and wavelengths of about 380 nm (.000015 inches) to about 10 nm (0.0000004 inches). UV light is a component of sunlight; however, it is invisible to the human eye. It has numerous medical and industrial applications, but it can damage living tissue.

X-rays

X-rays are roughly classified into two types: soft X-rays and hard X-rays. Soft X-rays comprise the range of the EM spectrum between UV and gamma rays. Soft X-rays have frequencies of about 3 × 10 ¹⁶ to about 10 ¹⁸ Hz and wavelengths of about 10 nm (4 × 10 −7 inches) to about 100 picometers (pm), or 4 × 10 −8 inches. Hard X-rays occupy the same region of the EM spectrum as gamma rays. The only difference between them is their source: X-rays are produced by accelerating electrons, while gamma rays are produced by atomic nuclei.

Gamma-rays

Gamma-rays are in the range of the spectrum above soft X-rays. Gamma-rays have frequencies greater than about 10 ¹⁸ Hz and wavelengths of less than 100 pm (4 × 10 −9 inches). Gamma radiation causes damage to living tissue, which makes it useful for killing cancer cells when applied in carefully measured doses to small regions. Uncontrolled exposure, though, is extremely dangerous to humans.

Additional resources

Jim Lucas is a contributing writer for Live Science. He covers physics, astronomy and engineering. Jim graduated from Missouri State University, where he earned a bachelor of science degree in physics with minors in astronomy and technical writing. After graduation he worked at Los Alamos National Laboratory as a network systems administrator, a technical writer-editor and a nuclear security specialist. In addition to writing, he edits scientific journal articles in a variety of topical areas.

# data[].attributes.attachment_link.description
Electromagnetic (EM) radiation is a form of energy that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma rays. Sunlight is also a form of EM energy, but visible light is only a small portion of the EM spectrum, which contains a broad range of electromagnetic wavelengths.

# data[].attributes.body
There are many forms of electromagnetic energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

# data[].attributes.attachment_link.title
(OLD VERSION) Gravitational potential energy explained

# data[].attributes.attachment_link.title
What is gravitational and potential energy?

# data[].attributes.attachment_link.description
Find out the difference between potential and gravitational energy. See examples of how energy is transferred into an object and kept high to defy gravity. What happens if the object falls. Gravitational energy is released into kinetic energy. Let see this example.

# data[].attributes.body
energy associated with gravity or gravitational force.

# data[].attributes.attachment_link.description
Read the basic technology of hydropower from industry experts. Discover the different types of hydroelectric power plants and how they each work.

# data[].attributes.body
The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir.

# data[].attributes.attachment_link.readable_text
Light Energy Facts

The potential for light to perform work is called light energy. Light energy is the only form of energy that we can actually see directly. It is formed through chemical, radiation, and mechanical means. Light energy can also be converted into other forms of energy.

Light travels at a speed of about 300,000 km/s.

The sunlight that we see here on Earth actually left the Sun 10 minutes before.

During photosynthesis, plants use light energy to create chemical energy.

UV lights are often used by forensic scientists to see details that are not seen by the naked eye.

Although humans cannot see UV light, some insects have the ability to see it.

Optics is the study of light.

The speed of light changes when traveling through different objects.

Light is a type of electromagnetic energy.

Light is made of tiny photons which contain lots of energy.

The intensity of photons is dependent upon the amount of energy they contain.

Space is dark because light is only visible when it has an object of which to bounce off.

Light energy is always moving and can therefore not be stored.

Light is also called electromagnetic radiation when speaking of light other than visible light.

Of all the forms of radiation and light on the electromagnetic spectrum, humans can only visibly see a very small amount of light.

The reason we see different colors of light is because each color has a different wavelength.

# data[].attributes.attachment_link.description
The potential for light to perform work is called light energy. Light energy is the only form of energy that we can actually see directly. It is formed through chemical, radiation, and mechanical means. Light energy can also be converted into other forms of energy.

# data[].attributes.body
Light energy can also be converted into other forms of energy.

# data[].attributes.attachment_link.readable_text
What Is Nuclear Energy?

Energy is the ability to do work, where work is the movement of something when an effort is applied. We need and we use energy in our lives every day. We use energy to contract our muscles and move our cars. We use energy to warm our homes and toast our bread. Scientists are busy researching new ways to make energy available for our use. The sun seems an inexhaustible source of energy. Energy from the sun lights the sky and warms the planet. The energy from the sun is a type of nuclear energy or energy created from nuclear reactions.

What Are Nuclear Reactions?

That's easy enough, but what are nuclear reactions? Before we can define a nuclear reaction, we need to explore the basic structure of an atom. Atoms are the smallest building blocks of matter, and matter is anything that has mass and takes up space. Different atoms make up different elements; for example, hydrogen, , gold and silver are all elements. Each atom contains a , and the nucleus contains protons and neutrons. Electrons surround the nucleus of an atom. A nuclear reaction is a reaction that changes the nucleus of an atom. In other words, the number of protons and/or neutrons is changed as a result of a nuclear reaction.

What Do Nuclear Reactions Have to Do with Energy?

So what does this have to do with energy? The answer is simple and yet, amazingly profound. Nuclear reactions release energy. That statement is so important, I'll repeat it. Nuclear reactions release energy, and they release a lot of it! There are two types of nuclear reactions. Fission occurs when large nuclei are split into smaller fragments. Fusion occurs when small nuclei are put together to make a bigger one. Here's the amazing thing. Either way - whether it's fusion or fission - energy is released as a result of the nuclear reaction.

# data[].attributes.attachment_link.keywords[]
what is nuclear energy? - definition & examples - video & lesson transcript | study.com

# data[].attributes.attachment_link.title
What is Nuclear Energy? - Definition & Examples - Video & Lesson Transcript | Study.com

# data[].attributes.attachment_link.description
Energy is the ability to do work, where work is the movement of something when an effort is applied. We need and we use energy in our lives every day. We use energy to contract our muscles and move our cars. We use energy to warm our homes and toast our bread.

# data[].attributes.attachment_link.description
Learn about what nuclear energy is (fission and fusion), were it comes from, and how it is harnessed. Also discusses basic pros and cons of nuclear reactors.

# data[].attributes.body
Nuclear power is the use of nuclear reactions that release nuclear energy to generate heat, which most frequently is then used in steam turbines to produce electricity in a nuclear power plant.

# data[].attributes.attachment_link.keywords[]
visit www.oztern.com to find personalized test preparation solutions for pre medical - aipmt

# data[].attributes.attachment_link.description
Useful for CBSE, ICSE, NCERT & International Students Grade : 6 Subject : Science Lesson : Work and Energy Topic: SOUND ENERGY Sound energy is a form of energy that is associated with vibrations of matter. It is a type of mechanical wave which means it requires an object to travel through.

# data[].attributes.body
The SI unit of sound energy is the joule (J). Sound is a mechanical wave and as such consists physically in oscillatory elastic compression and in oscillatory displacement of a fluid.

# data[].attributes.attachment_link.title
What is thermal energy? (article) | Khan Academy

# data[].attributes.attachment_link.description
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

# data[].attributes.body
thermal energy refers to the internal energy present in a system due to its temperature

# data[].attributes.body
Wind power is the use of air flow through wind turbines to mechanically power generators for electric power