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Energy created by the pull of gravity. The potential to fall due to gravity.

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Gravitational energy is a form of Potential Energy.

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A book on top of a bookshelf has gravitational energy.

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This rock has gravitational potential energy because it has the POTENTIAL to fall down to the ground below.

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Attach a link to a website that has more information on your form of energy.

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What do we know about gravity aside from the fact that all things fall at a speed of 9.8 m/s²? These gravity facts will tell you all about what this force does for us, as well as what will happen without it.

1. Gravity is the force that attracts planets, bodies, and elements towards each other.

2. It is a natural phenomenon that applies to anything with mass and energy.

3. Gravity only pulls - it never repels.

4. Gravity is weaker the farther an object is.

5. Gravity is measured in G-force (gravitational force).

1. Gravity originated from the Latin gravis (heavy).

2. Gravity is far weaker than the other three fundamental forces (electromagnetic force, strong force, and weak force).

3. The higher something is, the greater its gravitational potential energy.

4. Archimedes first discovered the center of gravity of a triangle.

5. Arabhyata of ancient India first described an "attractive force" that keeps objects on Earth as it rotates.

6. Larger masses are subject to greater gravity.

7. All objects fall at the same time. Acceleration due to gravity is 9.8 m/s 2

8. Gravity bends light.

9. To leave Earth's gravitational pull behind, an object must travel 7 miles per second.

10. At the center of the Earth, you would feel weightless.

1. Newton was not hit in the head by an apple - he simply observed an apple falling from a tree.

2. Fish have calcium deposits or stones in their heads that tell them which way is up through feeling gravity's pull.

3. Gravity makes oceans bulge.

4. The lack of gravity in space makes astronauts grow 2 inches.

5. However, once they come back, the Earth's gravity will compress their ligaments and undo this growth.

Gravity Facts Infographics

Scientists weigh planets through its gravitational pull.

You may wonder how we have all these measurements for planets when it seems impossible to measure objects in space , much less objects as massive as the planets. However, things changed with Lord Henry Cavendish's experiment in 1797. Through his findings, scientists now calculate a planet's weight by the time it takes for objects to orbit the planet and the distance of those objects from the planet.

Cavendish set up an experiment with two 150 kg lead balls (planets) and two smaller spheres (moons). He measured the gravitational pull between these elements. Through his experiment, Cavendish discovered the missing piece of Newton's gravitational puzzle, which was the value of G - the amount that relates the gravitational force between two bodies to their masses and distance. With the new value of G, Cavendish was also the first man to attempt weighing a planet. He used Newton's equation with the value of G to calculated that the Earth's mass is six billion trillion tonnes.

Gravity is weaker than a fridge magnet.

When you stick a dime-sized magnet on a fridge, it has enough electromagnetic force to overcome the Earth's gravity and stick to it.

Gravity and weight are not the same.

One of the overlooked gravity facts: Although the force of gravity in space is 90% percent of the force an astronaut experiences on Earth, astronauts don't have weight in space. Weight is the force we feel on a surface (like on a chair or a bed). Therefore, astronauts are weightless in space.

Galileo Galilei proved that gravitational acceleration is constant through the... Tower of Pisa?

In the 14th century, the Italian scientist Galileo Galilei dropped two spheres with different masses from the Leaning Tower of Pisa. He did this to demonstrate how their time of descent was not affected by their mass, and fell at the same time.

According to Galileo's student Viviani, Galileo discovered that the objects fell with the same acceleration. With that, he disproved Aristotle's earlier theory of acceleration due to gravity, which states that objects fall at speeds according to their mass.

Your weight changes when you accelerate.

You strain when you run because the Earth's gravity is pulling you toward its core, but the ground you are running on pushes up and matches this force exactly.

This interplay of force is what makes you feel heavy. When you accelerate to the peak of a roller coaster, the chair pushes harder against your body, opposing the force of gravity and making you feel heavier. However, once the coaster starts to accelerate down, your body feels lighter. This is why you feel momentarily weightless before descending. These indirect fluctuations in weight are known as 'g-force'.

Dark energy works against gravity.

Gravity is a weak force, and it isn't powerful enough to hold the entire universe together. From the Big Bang, the universe has been expanding. The pull of gravity in the universe is being opposed by dark energy. Gravity is only strong over short distances, but dark energy is thought to be distributed evenly, which accelerates the expansion of the universe - and prevents gravity from pulling everything back together.

The range of gravity is infinite.

Gravity might be the weakest of the four fundamental forces, but has unlimited range. Its strength decreases rapidly as objects move farther apart, but its reach is theoretically infinite.

Read also: 70 Fun Pi Facts You Definitely Cannot Miss

Spinning motions create artificial gravity.

On a spinning fair ride, the outer walls provide an inward center-seeking force that keeps riders moving in a circle. This feeling of constant momentum is called centripetal force, and the effect feels just like gravity.

You weigh almost three times less on Mars than your weight on Earth.

All of the atoms that make up your body are a fixed amount, and as such, mass is a fixed property. Whether you are on Earth, in space, or standing on the Moon, your mass stays the same. However, the gravitational pull of other planets are not the same as the Earth's. As such, your mass would be the same, but your weight will be different.

Without gravity, the solar system will collapse.

Without gravity, the planets and moons would cease to orbit their parent bodies and drift away in a straight line.

For the sun, however, it suffers a graver fate: without gravity in the solar system, the sun would explode in minutes.

The sun is under constant pressure. It is so massive that gravity compresses its core, which heats up enough to burn hydrogen. The pressure from gravity and radiation puts the sun in equilibrium.

Without gravity, there will be no force to hold back the intense pressure building in the at the sun's core. The sudden loss of gravity will throw off the sun's chemical reactions and cause it to expel extremely hot gas across the solar system.

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32 Interesting Gravity Facts You Never Knew | Facts.net

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What do we know about gravity aside from the fact that all things fall at a speed of 9.8 m/s²? These gravity facts will tell you all about what this force does for us, as well as what will happen without it. Gravity is the force that attracts planets, bodies, and elements towards each other.

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An object has this energy by it's motion and by it's position.

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(The science of blowing people up!)

Nuclear Energy is a strong force that resorts to expanding and making huge explosions caused by something physical or chemical

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The Energy produced by vibrating sound waves, however its because it is based on vibrations

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Energy stored and built up in an object temporarily than released.

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Chemical energy is s bond of different chemicals making a reaction.

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Light energy is a form of energy that travles through waves and is created by electromagnetic radiation.

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Nuclear Energy can both be Kinetic and Potential, seeing as that it can be stored and released in a similar tone.

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Is Chemical energy potential or kinetic.

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Is Chemical energy potential or kinetic.

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It is Potential

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Mechanical energy is K.E and P.E due to the motion that an object is moving at and the potential is from by the position an object is sitting.

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Somebody smacked the nuke button at a country that they were mad at.

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he combustion reaction converts chemical energy into light and heat. Wood: Combustion converts chemical energy into light and heat. 

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Thermal Energy is a form of Kinetic Energy.

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Elastic energy is a form of Potential energy.

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When boiling a kettle it is using Thermal and Kinetic Energy due to atoms and molecules moving/vibrating. Anything moving is a form of Kinetic Energy.

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A spring being stretched and compressed.

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This Nuclear power-plant source is steaming off its energy.. Maybe its mad or something

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Sound Energy is a form of Kinetic Energy

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This is Thermal Energy and Kinetic Energy because the increase of temperature causes atoms to move faster. 

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This is Thermal Energy and Kinetic Energy because the increase of temperature causes atoms to move faster. 

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Whether you stretch or compress a spring it has the potential to go back to its static position. This is because you are building up energy and then releasing it.

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it is kinetic.

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chemical energy - an overview | ScienceDirect Topics

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The release of chemical energy stored in organic compounds occurs in two stages: catabolism and respiration. Reduction leading to CO 2 release occurs during catabolism: the electron donor is the organic compound being catabolized, while the electron acceptor is the oxidized form of nicotinamide adenine dinucleotide NAD+ (Fig.

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(That's a lot of bad smoke going into the air though O_O)

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A bow and an arrow the bow string pulls back and that is P.E and the K.E is when the arrow is released that arrow is in motion.

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A light bulb is a very basic example of light traveling in waves.

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More information on Nuclear Energy! If your that interested in this kind of stuff..

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More information on Nuclear Energy! If your that interested in this kind of stuff..

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Here is a link for you to go to if your bored or whatever:

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What is Nuclear Power and Energy? | GE Hitachi Nuclear Energy

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Nuclear power produces the most efficient and carbon-free source of electricity through steam turbines. Learn more from GE Hitachi Nuclear Energy.

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a light buls uses electricity to make light waves

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some examples for sound energy
-A balloon popping from to much air or you hit it with a sharp object.
-A airplane taking off because when it runs with gas the steam and parts make noise so it can get ready to take off.

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The energy of electrons moving through a substance to create electricity.

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Kinetic!

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A light bulb connected to an outlet.

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This picture shows two circuits exchanging electrons.

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What Is Electricity?

Electricity is a form of energy. Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center, called a nucleus. The nucleus contains positively charged particles called protons and uncharged particles called neutrons. The nucleus of an atom is surrounded by negatively charged particles called electrons. The negative charge of an electron is equal to the positive charge of a proton, and the number of electrons in an atom is usually equal to the number of protons. When the balancing force between protons and electrons is upset by an outside force, an atom may gain or lose an electron. When electrons are "lost" from an atom, the free movement of these electrons constitutes an electric current.

Electricity is a basic part of nature and it is one of our most widely used forms of energy. We get electricity, which is a secondary energy source, from the conversion of other sources of energy, like coal, natural gas, oil, nuclear power and other natural sources, which are called primary sources. Many cities and towns were built alongside waterfalls (a primary source of mechanical energy) that turned water wheels to perform work. Before electricity generation began slightly over 100 years ago, houses were lit with kerosene lamps, food was cooled in iceboxes, and rooms were warmed by wood-burning or coal-burning stoves. Beginning with Benjamin Franklin's experiment with a kite one stormy night in Philadelphia, the principles of electricity gradually became understood. In the mid-1800s, everyone's life changed with the invention of the electric light bulb. Prior to 1879, electricity had been used in arc lights for outdoor lighting. The lightbulb's invention used electricity to bring indoor lighting to our homes.

How Is a Transformer Used?

To solve the problem of sending electricity over long distances, George Westinghouse developed a device called a transformer. The transformer allowed electricity to be efficiently transmitted over long distances. This made it possible to supply electricity to homes and businesses located far from the electric generating plant.

Despite its great importance in our daily lives, most of us rarely stop to think what life would be like without electricity. Yet like air and water, we tend to take electricity for granted. Everyday, we use electricity to do many functions for us -- from lighting and heating/cooling our homes, to being the power source for televisions and computers. Electricity is a controllable and convenient form of energy used in the applications of heat, light and power.

Today, the United States (U.S.) electric power industry is set up to ensure that an adequate supply of electricity is available to meet all demand requirements at any given instant.

How Is Electricity Generated?

An electric generator is a device for converting mechanical energy into electrical energy. The process is based on the relationship between magnetism and electricity. When a wire or any other electrically conductive material moves across a magnetic field, an electric current occurs in the wire. The large generators used by the electric utility industry have a stationary conductor. A magnet attached to the end of a rotating shaft is positioned inside a stationary conducting ring that is wrapped with a long, continuous piece of wire. When the magnet rotates, it induces a small electric current in each section of wire as it passes. Each section of wire constitutes a small, separate electric conductor. All the small currents of individual sections add up to one current of considerable size. This current is what is used for electric power.

How Are Turbines Used to Generate Electricity?

An electric utility power station uses either a turbine, engine, water wheel, or other similar machine to drive an electric generator or a device that converts mechanical or chemical energy to electricity. Steam turbines, internal-combustion engines, gas combustion turbines, water turbines, and wind turbines are the most common methods to generate electricity.

Most of the electricity in the United States is produced in steam turbines. A turbine converts the kinetic energy of a moving fluid (liquid or gas) to mechanical energy. Steam turbines have a series of blades mounted on a shaft against which steam is forced, thus rotating the shaft connected to the generator. In a fossil-fueled steam turbine, the fuel is burned in a furnace to heat water in a boiler to produce steam.

Coal, petroleum (oil), and natural gas are burned in large furnaces to heat water to make steam that in turn pushes on the blades of a turbine. Did you know that coal is the largest single primary source of energy used to generate electricity in the United States? In 1998, more than half (52%) of the county's 3.62 trillion kilowatt-hours of electricity used coal as its source of energy.

Natural gas, in addition to being burned to heat water for steam, can also be burned to produce hot combustion gases that pass directly through a turbine, spinning the blades of the turbine to generate electricity. Gas turbines are commonly used when electricity utility usage is in high demand. In 1998, 15% of the nation's electricity was fueled by natural gas.

Petroleum can also be used to make steam to turn a turbine. Residual fuel oil, a product refined from crude oil, is often the petroleum product used in electric plants that use petroleum to make steam. Petroleum was used to generate less than three percent (3%) of all electricity generated in U.S. electricity plants in 1998.

Nuclear power is a method in which steam is produced by heating water through a process called nuclear fission. In a nuclear power plant, a reactor contains a core of nuclear fuel, primarily enriched uranium. When atoms of uranium fuel are hit by neutrons they fission (split), releasing heat and more neutrons. Under controlled conditions, these other neutrons can strike more uranium atoms, splitting more atoms, and so on. Thereby, continuous fission can take place, forming a chain reaction releasing heat. The heat is used to turn water into steam, that, in turn, spins a turbine that generates electricity. In 2015, Nuclear power is used to generate 19.47 percent of all the country's electricity.

As of 2013, hydropower accounts for 6.8 percent of U.S. electricity generation. Its a process in which flowing water is used to spin a turbine connected to a generator. There are mainly two basic types of hydroelectric systems that produce electricity. In the first system, flowing water accumulates in reservoirs created by the use of dams. The water falls through a pipe called a penstock and applies pressure against the turbine blades to drive the generator to produce electricity. In the second system, called run-of-river, the force of the river current (rather than falling water) applies pressure to the turbine blades to produce electricity.

Other Generating Sources

Geothermal power comes from heat energy buried beneath the surface of the earth. In some areas of the country, magma (molten matter under the earth's crust) flows close enough to the surface of the earth to heat underground water into steam, which can be tapped for use at steam-turbine plants. As of 2013, this energy source generates less than 1% of the electricity in the country, though an assessment by the U.S. Energy Information Administration that nine western states can potentially produce enough electricity to supply 20 percent of the nation's energy needs.

Solar power is derived from the energy of the sun. However, the sun's energy is not available full-time and it is widely scattered. The processes used to produce electricity using the sun's energy have historically been more expensive than using conventional fossil fuels. Photovoltaic conversion generates electric power directly from the light of the sun in a photovoltaic (solar) cell. Solar-thermal electric generators use the radiant energy from the sun to produce steam to drive turbines. In 2015, less than 1% of the nation's electricity was supplied by solar power.

Wind power is derived from the conversion of the energy contained in wind into electricity. Wind power, like the sun, is usually an expensive source of producing electricity. In 2014, It was used for roughly 4.44 percent of the nation's electricity. A wind turbine is similar to a typical wind mill.

Biomass (wood, municipal solid waste (garbage), and agricultural waste, such as corn cobs and wheat straw, are some other energy sources for producing electricity. These sources replace fossil fuels in the boiler. The combustion of wood and waste creates steam that is typically used in conventional steam-electric plants. In 2015, biomass accounts for 1.57 percent of the electricity generated in the United States.

The electricity produced by a generator travels along cables to a transformer, which changes electricity from low voltage to high voltage. Electricity can be moved long distances more efficiently using high voltage. Transmission lines are used to carry the electricity to a substation. Substations have transformers that change the high voltage electricity into lower voltage electricity. From the substation, distribution lines carry the electricity to homes, offices and factories, which require low voltage electricity.

How Is Electricity Measured?

Electricity is measured in units of power called watts. It was named to honor James Watt, the inventor of the steam engine. One watt is a very small amount of power. It would require nearly 750 watts to equal one horsepower. A kilowatt represents 1,000 watts. A kilowatt-hour (kWh) is equal to the energy of 1,000 watts working for one hour. The amount of electricity a power plant generates or a customer uses over a period of time is measured in kilowatt-hours (kWh). Kilowatt-hours are determined by multiplying the number of kW's required by the number of hours of use. For example, if you use a 40-watt light bulb 5 hours a day, you have used 200 watts of power, or .2 kilowatt-hours of electrical energy.

More on Electricity: History, Electronics, and Famous Inventors

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Electricity is a form of energy. Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center, called a nucleus. The nucleus contains positively charged particles called protons and uncharged particles called neutrons. The nucleus of an atom is surrounded by negatively charged particles called electrons.

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https://www.solarschools.net/knowledge-bank/energy/ What is thermal energy? (article) | Khan Academy

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More facts and examples about Mechanical Energy

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More facts and examples about Mechanical Energy

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In a previous part of Lesson 1, it was said that work is done upon an object whenever a force acts upon it to cause it to be displaced. Work involves a force acting upon an object to cause a displacement. In all instances in which work is done, there is an object that supplies the force in order to do the work. If a World Civilization book is lifted to the top shelf of a student locker, then the student supplies the force to do the work on the book. If a plow is displaced across a field, then some form of farm equipment (usually a tractor or a horse) supplies the force to do the work on the plow. If a pitcher winds up and accelerates a baseball towards home plate, then the pitcher supplies the force to do the work on the baseball. If a roller coaster car is displaced from ground level to the top of the first drop of a roller coaster ride, then a chain driven by a motor supplies the force to do the work on the car. If a barbell is displaced from ground level to a height above a weightlifter's head, then the weightlifter is supplying a force to do work on the barbell. In all instances, an object that possesses some form of energy supplies the force to do the work. In the instances described here, the objects doing the work (a student, a tractor, a pitcher, a motor/chain) possess chemical potential energy stored in food or fuel that is transformed into work. In the process of doing work, the object that is doing the work exchanges energy with the object upon which the work is done. When the work is done upon the object, that object gains energy. The energy acquired by the objects upon which work is done is known as mechanical energy.
Mechanical energy is the energy that is possessed by an object due to its motion or due to its position. Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position). Objects have mechanical energy if they are in motion and/or if they are at some position relative to a zero potential energy position (for example, a brick held at a vertical position above the ground or zero height position). A moving car possesses mechanical energy due to its motion ( kinetic energy). A moving baseball possesses mechanical energy due to both its high speed ( kinetic energy) and its vertical position above the ground (gravitational potential energy). A World Civilization book at rest on the top shelf of a locker possesses mechanical energy due to its vertical position above the ground (gravitational potential energy). A barbell lifted high above a weightlifter's head possesses mechanical energy due to its vertical position above the ground (gravitational potential energy). A drawn bow possesses mechanical energy due to its stretched position (elastic potential energy).

Mechanical Energy as the Ability to Do Work

An object that possesses mechanical energy is able to do work. In fact, mechanical energy is often defined as the ability to do work. Any object that possesses mechanical energy - whether it is in the form of potential energy or kinetic energy - is able to do work. That is, its mechanical energy enables that object to apply a force to another object in order to cause it to be displaced.

Numerous examples can be given of how an object with mechanical energy can harness that energy in order to apply a force to cause another object to be displaced. A classic example involves the massive wrecking ball of a demolition machine. The wrecking ball is a massive object that is swung backwards to a high position and allowed to swing forward into building structure or other object in order to demolish it. Upon hitting the structure, the wrecking ball applies a force to it in order to cause the wall of the structure to be displaced. The diagram below depicts the process by which the mechanical energy of a wrecking ball can be used to do work.

A hammer is a tool that utilizes mechanical energy to do work. The mechanical energy of a hammer gives the hammer its ability to apply a force to a nail in order to cause it to be displaced. Because the hammer has mechanical energy (in the form of kinetic energy), it is able to do work on the nail. Mechanical energy is the ability to do work.

Another example that illustrates how mechanical energy is the ability of an object to do work can be seen any evening at your local bowling alley. The mechanical energy of a bowling ball gives the ball the ability to apply a force to a bowling pin in order to cause it to be displaced. Because the massive ball has mechanical energy (in the form of kinetic energy), it is able to do work on the pin. Mechanical energy is the ability to do work.

A dart gun is still another example of how mechanical energy of an object can do work on another object. When a dart gun is loaded and the springs are compressed, it possesses mechanical energy. The mechanical energy of the compressed springs gives the springs the ability to apply a force to the dart in order to cause it to be displaced. Because of the springs have mechanical energy (in the form of elastic potential energy), it is able to do work on the dart. Mechanical energy is the ability to do work.

A common scene in some parts of the countryside is a "wind farm." High-speed winds are used to do work on the blades of a turbine at the so-called wind farm. The mechanical energy of the moving air gives the air particles the ability to apply a force and cause a displacement of the blades. As the blades spin, their energy is subsequently converted into electrical energy (a non-mechanical form of energy) and supplied to homes and industries in order to run electrical appliances. Because the moving wind has mechanical energy (in the form of kinetic energy), it is able to do work on the blades. Once more, mechanical energy is the ability to do work.

The Total Mechanical Energy

As already mentioned, the mechanical energy of an object can be the result of its motion (i.e., kinetic energy) and/or the result of its stored energy of position (i.e., potential energy). The total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy (abbreviated TME).

TME = PE + KE

As discussed earlier, there are two forms of potential energy discussed in our course - gravitational potential energy and elastic potential energy. Given this fact, the above equation can be rewritten:

TME = PEgrav + PEspring + KE

The diagram below depicts the motion of Lee Ben Fardest (esteemed American ski jumper) as he glides down the hill and makes one of his record-setting jumps.

The total mechanical energy of Lee Ben Fardest is the sum of the potential and kinetic energies. The two forms of energy sum up to 50 000 Joules. Notice also that the total mechanical energy of Lee Ben Fardest is a constant value throughout his motion. There are conditions under which the total mechanical energy will be a constant value and conditions under which it will be a changing value. This is the subject of Lesson 2 - the work-energy relationship. For now, merely remember that total mechanical energy is the energy possessed by an object due to either its motion or its stored energy of position. The total amount of mechanical energy is merely the sum of these two forms of energy. And finally, an object with mechanical energy is able to do work on another object.

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In a previous part of Lesson 1, it was said that work is done upon an object whenever a force acts upon it to cause it to be displaced. Work involves a force acting upon an object to cause a displacement.

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Attach a link to a website that has more information on your form of energy.

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Elastic Energy - Knowledge Bank - Solar Schools

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When this happens, elastic energy can be stored in the object, ready to be released when the object goes back to its original shape - when you let the elastic band go, or loosen your grip on the squishy ball.