Pratique du Shadowing: What Are Sources of Energy? | Energy Explained | The Dr Binocs Show | Peekaboo Kidz - Apprendre l'anglais à l'oral avec la vidéo
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Oh What are you drinking little kitty?
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Hmm, it's better you sip some natural sources of energy than artificial ones
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That's an excellent question
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So in today's episode let me take you to this energetic world of energy and and look at the sources of energy.
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Zoom in!
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Before we look into the energy sources, let us see what energy is in the first place.
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Well, according to the classical definition, energy is the ability to do work.
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You can learn more about its definition from our video on the same topic.
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So please, check that whenever possible.
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But the vital question is, from where do we get so much energy?
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Well, according to the law of conservation of energy, energy can neither be created nor be destroyed.
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It can only be wasted.
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Sorry, bad joke.
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But it may be transformed from one form to another.
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And if you take all forms of energy into account, the total energy of an isolated or closed system,
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like the universe, always remains constant.
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How?
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We can learn more about it by observing how the sources of energy work,
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which can be classified into two forms, renewable and non-renewable sources of energy.
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And what are they?
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Renewable source is a natural resource that causes no impact on nature.
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They are available in abundance in nature and are sustainable.
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These resources of energy can be naturally refilled and are safe for the environment.
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Good examples of renewable sources of energy are solar energy,
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wind energy, biomass, geothermal energy and hydropower energy.
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So let us look at them one by one starting with solar energy.
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The heat and light we receive from the sun are solar energy.
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This energy is then converted into electric energy with the help of solar panels.
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Also, it can be converted to thermal energy to heat our homes or water.
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Next comes another unlimited source called wind energy which is produced through the wind.
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This wind can be harnessed and converted into electricity using man-made structures called
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wind turbines that can light up our houses and schools.
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To know how it works, please check out our video, How do wind turbines work afterwards?
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Now, let us look into biomass, which is renewable organic matter that comes from plants and animals.
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Examples of biomass include wood, crops and animal waste that can be turned into fuel.
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Next on the list is geothermal energy that comes from the heat inside the earth.
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It can be used to produce electricity, heat homes and buildings and provide hot water.
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Speaking of water, moving water can also produce energy in the form of hydro power that can generate electricity.
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It is It's one of the oldest and largest sources of renewable energy that is available in plenty on Earth.
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But what is limited is non-renewable sources of energy that can run out of supply as time passes.
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Some examples of these are natural gas, coal, petroleum, nuclear energy and hydrocarbon gas liquids.
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These are not only exhaustible but can have an impact on the environment by causing pollution.
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So, it's vital to limit our dependency on non-renewable sources of energy
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and find an alternative solution with the help of renewable source of energy
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as a way to help reduce and avoid carbon dioxide emissions for a better and safer future.
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Trivia Time!
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Did you know the word energy is derived from the ancient Greek word, Energia?
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Yes, this word was created by Aristotle in 384 BC.
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Hope you learned something energetically vital today.
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Until next time, it's me Dr. Pinox, Zooming out.
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Kitty brings natural energy.
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Never mind.
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Thank you.
À propos de cette leçon
Vous vous entraînez en anglais avec "What Are Sources of Energy? | Energy Explained | The Dr Binocs Show | Peekaboo Kidz" en utilisant la technique du Shadowing.
Qu'est-ce que la technique du Shadowing ?
Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.