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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

If the sun is a big black ball how can it be so bright?

The sun's brightness comes from the nuclear fusion happening in its core, which creates immense heat and light. If the sun were a black ball, it would not emit any visible light. Its visible brightness comes from the intense energy released during nuclear fusion.

What is a wide range of energy waves that radiate from the sun?

This refers to electromagnetic waves.

These are:

  1. Radio waves (biggest wavelength)
  2. Microwaves
  3. Infrared waves
  4. Visible waves (light, the rainbow spectrum)
  5. Ultraviolet waves
  6. X-ray waves
  7. Gamma waves (smallest wavelength).

How long does it take for a heated driveway to heat or warm up?

The time it takes for a heated driveway to warm up can vary depending on the size of the driveway, the temperature outside, and the type of heating system used. On average, it can take anywhere from 15 minutes to a few hours for a heated driveway to reach its desired temperature.

What is another name for solar plexus?

Another name for the solar plexus is the celiac plexus or coeliac plexus.

What are the heat transfer from a pot on a metal grill heated over a campfire?

You will have heat transfer to the pot by radiation from the hot coals and by a combination of conduction and convection as the hot gasses of the fire rise to the pot. You might also have some slight heating by conduction from the metal grill to the pot; the grill gets heated the same way as the pot by radiation and flames but may be slightly warmer than the pot since it is closer to the coals and lies between the flames and parts of the pot resting on it. The total heat transfer from the grill to the pot is probably minimal. We would hope that the contents of the pot get heated by the walls of the pot - by conduction and, if they are fluid, convection.

What is after the sun in the food chain?

After the sun in the food chain comes producers, which are organisms that can make their own food using sunlight through photosynthesis. These producers are then consumed by primary consumers (herbivores), which are in turn eaten by secondary consumers (carnivores/omnivores) and so on.

Why is the sun at the way top of the food chain?

Dear Wiki Questioner,

The Sun is way at the top of the food chain because it is the ultimate source of all of the energy consumed in the entire food chain!

The Sun is continually fusing hydrogen molecules into helium molecules which produces a lot of energy in the Sun and makes it very hot. The Sun gets so hot from this fusion energy that it emits large amounts of electromagnetic radiation (Light!) which travels across space and hits the earth.

Plants (with a few exceptions like the Venus Flytrap and the Cobra Lilly) get all the energy they need from the sun's light, which they can "consume" by a process known as photosynthesis.

Herbivores (Plant Eaters), get all of their energy from the plants that they consume, but since the plants get their energy from the sun, we can say that the Herbivores got their energy indirectly from the sun too.

Carnivores (Meat Eaters), get all of their energy from the other animals they consume. Since the other animals get their energy from the plants, who get their energy from the Sun, we can say that the Carnivores also get their energy indirectly to the sun.

So the process is:

Carnivores ---eat---> Herbivores ---eat---> Plants ---Consume---> Sunlight!

The chain always leads back to the Sun, so we say that the sun is on top of the food chain.

Is the big bang a form or example of free energy?

The Big Bang is not an example of free energy. Free energy typically refers to the energy available to do work, whereas the Big Bang was the initial explosion that marked the beginning of the universe and is not related to the concept of free energy.

Sound waves cannot travel through empty space because they need particles to transport what?

Sound waves require a medium, such as air, water, or a solid material, to propagate because they rely on the vibration and interaction of particles in that medium to transmit energy. In empty space, there are no particles for the sound waves to interact with, so they cannot travel.

Why does an energy efficient light bulb use less CO2?

An energy efficient light bulb uses less CO2 because it requires less electricity to function, which means less fossil fuels need to be burned to generate that electricity. Fossil fuels are a major source of CO2 emissions, so using less electricity results in lower CO2 emissions.

How much energy does it take to make batteries?

The amount of energy required to produce batteries can vary depending on the type and size of the battery. The production process typically involves a combination of energy-intensive steps, such as mining raw materials, manufacturing components, and assembly. Overall, the energy input for battery production can be significant but can be offset by the energy savings achieved during the use phase of the battery's life cycle.

What was George Stephenson's Rocket?

an early steam locomotive made by george stephenson.

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WIKIPEDIA RESULT:

Stephenson's Rocket was an early steam locomotive of 0-2-2 wheel arrangement, built in Newcastle Upon Tyne at the Forth Street Works of Robert Stephenson and Company in 1829.

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What is the solar sysytem?

The solar system is a collection of planets, moons, asteroids, comets, and other objects that orbit around the Sun due to its gravitational pull. It includes eight planets, such as Earth and Mars, as well as their moons, and the dwarf planet Pluto.

What does gravitional force?

The gravitational force is a natural phenomenon by which objects with mass attract one another. It is responsible for keeping planets in orbit around the sun and objects on Earth grounded. The force of gravity follows Newton's law of universal gravitation, which states that every mass attracts every other mass with a force proportional to their masses and inversely proportional to the square of the distance between them.

Explain how coal is a store of solar energy?

Coal is composed of old plant material that was chemically altered over the course of millions of years. The coal contains energy from sunlight that the plants captured and stored via photosynthesis.

Can fossil fuels be replaced?

No once the fuel is consumed it is gone. Fossil fuels are the dead remains of animals and plants long dead. When we tap into them, we have no way of replacing them. This is why we are looking for alternative fuel sources.

What are the Sun's main atmospheric gases?

The Sun's atmosphere is primarily composed of hydrogen and helium. These two gases make up over 98% of the Sun's total mass. Other gases present in smaller amounts include oxygen, carbon, neon, and iron.

Why does most of your energy come from the sun?

Most of Earth's energy comes from the sun because the sun emits vast amounts of radiation, including light and heat. This energy is captured by plants through photosynthesis, which forms the basis of the food chain and fuels most ecosystems on our planet.

Is radiation is a form of kinetic energy?

Radiation is a form of energy that includes both kinetic and electromagnetic energy. Kinetic energy refers to the energy of moving particles in radiation, such as in the case of alpha or beta particles. Electromagnetic energy refers to the energy carried by waves, like gamma rays.

3 reasons why solar energy is bad?

  1. Initial installation costs can be high, making it inaccessible to some individuals.
  2. Solar panels can only generate electricity during daylight hours and may be less effective in areas with frequent cloud cover.
  3. The manufacturing process of solar panels can have negative environmental impacts due to the resources and energy required.

How much energy does a nova release?

Not to be confused with a supernova - [See related]

In a few hundred days a nova pumps out as much energy as the sun does for more than a million years.

The Little Boy atomic bomb dropped on Hiroshima exploded with an energy of about 15 kilotons of TNT (~6 × 1013 joules)

During the Cold War, the United States developed hydrogen bombs with a maximum theoretical yield of 25 megatons (~1015 Joules)

A nova releases as much energy as the Sun emits in a million years or 1034 joules

which is about ten quintillion megatons of TNT (~1018 joules)

So you'd need about 17,000 of the most powerful hydrogen bombs to equal a nova.

What is the sign for Energy change of an endothermic reaction?

The products of the reaction will have less energy than the reactants

How come you can you use all of the energy in a gallon of gasoline?

Not all of the energy in a gallon of gasoline can be used because a significant portion is lost as waste heat during combustion in an engine. Only about 20-30% of the energy from gasoline is actually converted into useful mechanical work to power a vehicle, with the rest being dissipated as heat.

What is a solar distiller?

A solar distiller is a device that uses solar energy to evaporate water, leaving impurities behind, and then condenses the vapor to produce potable, purified water. It is a simple and sustainable way to obtain clean drinking water in areas with limited access to clean water sources.