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Energy

The Energy category covers the description, definition, and use of all types of energy. Questions of a general nature can be put in the general Energy category. Other sub-categories exist for Fossil fuels, Nuclear energy, and renewables such as Wind, Solar, Hydro, Tidal, and Wave power.

24,905 Questions

Why is electricity a form of kinetic energy?

I believe electrical energy is considered potential energy and not kinetic. Kinetic energy is when an object is moving, electrical energy is a stored energy that can be converted to kinetic energy.

What Ancient blank reveal magnetic field blank from long ago?

Ancient pottery reveal magnetic field changes from long ago. By studying the alignment of magnetic minerals in the pottery, researchers can reconstruct past magnetic field intensity and direction, providing insights into the Earth's magnetic field history.

On he basis of nutrition how many types of bacteria are there?

There are three main types of bacteria based on nutrition: heterotrophic bacteria obtain nutrients from organic compounds, autotrophic bacteria can manufacture their own food using inorganic compounds, and saprophytic bacteria obtain nutrients from decaying organic matter.

What is the word used for describing how much water there is per month or year?

The term used to describe the amount of water that falls or accumulates in a specific location over a period of time, such as a month or year, is "precipitation."

How much energy does a person use in a year?

In the USA we consumed about 3.479 trillion [million million] kWh of electricity in 2003. If you estimate 300 million people, that would mean we each used over 10,000 kWh that year. This assumes that we each consumed our equal share of all electricity produced, even if some of it was used to make the can your soda is in, or the tires on your car. The quantity used goes up if you allow that we import more products than we export, which gives us a "hard" electricity import in power used to make imported sneakers, etc. On the other hand, China, with 1 billion people, used a bit more than a third of the amount we did in 2003, giving them a per capita kWh consumption of 1,300 kWh. Just divide the total used by 365.
The average use per person over a long period is given as 313 watts worldwide, 1363 watts in the USA and 688 watts in Europe. Canada is the highest at 1795 watts and the lowest is Afghanistan, Chad and Sierra Leone with 1 watt each per person.

So the worldwide average of 313 watts gives a daily consumption of 7½ units, varying from 0.024 unit in Afghanistan to 43 units in Canada.

Explain heat transfers in a convection cell on earth?

In a convection cell on Earth, heat from the underlying hot material causes it to rise towards the surface, carrying heat energy with it. As this hot material reaches the surface, it cools down and then sinks back down due to its increased density, completing the convection loop. This process of rising and sinking creates a circular motion of heat transfer known as a convection cell.

How does geothermal energy get its power?

Geothermal energy harnesses heat from within the Earth's crust, typically from volcanic activity or radioactive decay of minerals. This heat is used to generate steam or hot water that drives turbines to produce electricity. Geothermal power plants can either utilize steam directly from underground reservoirs or use heat exchangers to transfer heat from hot rocks to a fluid that drives a generator.

What must you know to determine which of two vehicles traveling at the same velocity has the greater momentum?

To determine which vehicle has the greater momentum, you need to know the mass of each vehicle. Momentum is defined as momentum = mass x velocity, so the vehicle with the greater mass will have the greater momentum. If the vehicles have the same mass, then they will have the same momentum.

Why is nonrenewable energy easier to use?

Nonrenewable energy sources such as oil, coal, and natural gas are easier to use because they are more energy-dense and have well-established infrastructure for extraction and distribution. Additionally, these sources require less frequent refueling or maintenance compared to renewable sources like solar or wind power.

The trait that helps an organism survive and reproduce?

An adaptive trait is a trait that helps organisms survive and reproduce. Adaptation refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation.

How is respiration different to burning fuels?

Respiration is a biological process that occurs in cells to release energy from food using oxygen. Burning fuels is a chemical process that occurs outside of living organisms to release energy from fuels like gasoline or coal through combustion without the need for oxygen. Respiration is a controlled process that produces ATP for cellular functions, while burning fuels is uncontrolled and can release pollutants into the environment.

Who was the first person to use a simple microscope and view microscopic organisms?

The first person to use a simple microscope and view microscopic organisms was Antonie van Leeuwenhoek, a Dutch scientist. In the 17th century, he discovered a whole new world of tiny creatures by observing samples of water and other materials under his handcrafted microscopes. His discoveries marked the beginning of microbiology as a science.

What kind of plants produce fuel?

Plants such as corn, soybeans, sugarcane, and algae are commonly used to produce biofuels like ethanol and biodiesel. These plants contain high levels of sugars, starches, or oils that can be converted into usable fuel through various processes.

Back-and- forth movement of matter?

the movement of the matter that is back and forth, therefore it has physical properties and chemical properties which can be found on the periodic table of protons and electrons or the changes of state from solid to liquid to gas and back.

science knowledge

Where should you go during a lightining storm?

You should move away from open spaces, instead go in places where there are things higher than you, in valleys surrounded by hills for example...but not in the middle of an open valley (open spaces). Lightning will always find the shortest route to earth...which means it will always strike the tallest object in its/your area.

How are matter and energy different?

Philosophically one might think of matter as "frozen" energy, and energy as "dynamic matter."

Most energy escapes in the form of electromagnetic radiation. Hence the "c" in the equation above, relating matter and energy. Just a small amount of mass, multiplied by the speed of light squared (which is a LARGE constant) translates into an enormous amount of energy.

Matter is not frozen solid, it vibrates, like trapped energy yearning to be free. Free neutron half life is around 12 minutes, after which these decay into proton/electron pairs. The mass difference (neutrons are slightly larger than a proton and electron combined) is imparted to the electron in the form of energy. These high speed electrons are known as "beta" particles. Careful observations of protons in the Super Kamiokande Detector in Japan have not revealed any instance of proton decay. So it is possible this form of matter may be constant, never "thawing" back into energy.

The smaller the particle, the larger the wave form associated with it. These waves are known as DeBroglie waves. All matter propagates (moves through space) by wave, and energy is associated with the wave. Note: This energy is different from the vibrational energy mentioned above, which is released (or reduced) via emission of infrared radiation, or long wave electromagnetic radiation known as heat. The less heat atoms or molecules contain, the slower they vibrate.

Where can you build geothermal power plants?

Geothermal power plants could be constructed anywhere there is an active thermal vent, or one near the surface. There are a number of places around the world where plants can be (or are) constructed.

Iceland has geothermal power plants. Additionally, these plants could be built along the so-called "ring of fire." That's the great arc of interfaces between tectonic plates along the western Americas, up through Alaska. The arc continues on down through Japan and the Philippines, and further into the area around Indonesia. We know that Hawaii and New Zealand have active geothermal vents, too. It is possible to put in a plant in a few places in Europe and Africa as well. Anywhere that there is an active volcano, there is an active geothermal vent.

Use the link below to see a map and the other one to learn more.

What does gadgets mean?

"Gadgets" typically refer to small tools or devices that are designed to perform a specific function. They often have a practical or novelty purpose, such as electronic gadgets like smartphones or kitchen gadgets like a garlic press.

Green plants use what kind of energy during photosynthesis?

The Green plants convert solar energy into chemical energy and with the help of cholorophyll they produse their food.

What is an earthquake's point of energy release?

An earthquake's point of energy release is called the focus or hypocenter. This is the exact location within the Earth where the seismic waves originate due to the sudden movement of rocks along a fault line. The point directly above the focus on the Earth's surface is called the epicenter.

Describe the two stages of photosynthesis?

1. energy captured from sunlight by chlorophyll molecules found in thylakoids.

2. light energy converted into chemical energy: stored in ATP and NADH.

3. chemical energy stored in ATP and NADH powers formation of glucose.

overall photosynthesis equation:

6CO2+ light energy ---> C6H12O6 + 6O2

Why are fossil fuels a nonrenewable resource?

Fossil fuels are nonrenewable resources because they are formed over millions of years from the decomposition of organic materials such as plants and animals. The rate at which fossil fuels are consumed far exceeds the rate at which they are naturally replenished, making them finite and unsustainable in the long term. Once they are extracted and burned, they cannot be replaced within a human lifespan.

If you leave Friday come back on Friday in three days. How is that possible?

You didn't get the whole story. A cowboy left for town on friday. stayed for 3 days and came back on friday. How did he do it.......... his horse was named friday.