Conditions for work to be done: A net force should act on an object. The object must be displaced in the direction of the net force. Work is said to be done when an object is displaced on applying a certain force. W = F × s‚ Where W = Work done on an object F = Net force on the object s = Displacement of the object Joule is defined as the work done when the net force of one newton acts on a body and displaces it in the direction of the force by one metre. Work done could be either positive or negative
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Energy conservation refers to reducing energy through using less of an energy service. Energy conservation differs from efficient energy use‚ which refers to using less energy for a constant service. For example‚ driving less is an example of energy conservation. Driving the same amount with a higher mileage vehicle is an example of energy efficiency. Energy conservation and efficiency are both energy reduction techniques. Even though energy conservation reduces energy services‚ it can result in
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ENERGY RESOURCE PLAN Conserving energy is important to our society because it can extend the life time of non-renewable resources. Examples of these are oils‚ coal ‚ and gas. It also minimizes the use of larger more dangerous and environmentally damaging sources ‚such as deep sea oil and tar deposits. Currently the world produces 20 million barrels of oil each year. One-third of that is used by the United Sates. Concidering that only %35 of an oil well can be recoverd one-third is a lot to consume
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McKenzie Smith Science 8-5 February 10‚ 2011 RSV Final Draft Energy Pathways This reading is about food chains‚ food webs‚ and food pyramids. The sun is the source of energy in a food chain. The energy from the sun can only be used by producers. The producers get eaten by consumers. A consumer is a herbivore‚ a carnivore‚ or an omnivore. Fungi and decay bacteria are decomposers. Decomposers break down and recycle dead things and make the soil better for producers. Food webs are the overlapping
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Research Essay Energy Crisis Fossil fuels and Nuclear power plants are extremely dangerous to the environment. They pollute the very atmosphere we breathe and they’re extremely expensive. It emits large amounts of toxins and carbon dioxide into the air‚ not only hurting humans but also the crops we grow. They also assist the cause global warming. “A catastrophic human’s effect of burning fossil fuels and nuclear waste is global warming. They emit carbon dioxide and other greenhouse gases‚ which
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Source of capital: Capital is the basic needs of organisation; it is needed in every step of business‚ from buying raw materials to selling their goods. To maintain this capital‚ business needs to identify and allocate their proper source of finance. The place where the business gets their funds from is called their source of capital. The business have two different source of finance‚ internal source (for ex: retained profits‚ sales of existing assets‚ cut down stock level‚ etc) and external sources
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Question 4 Source 2‚ ‘Fearsome Tyrannosaurus rex Sue may have died from a sore throat’‚ and Source 3 ‘Everest the hard way’ are both non-fiction texts‚ but have different purposes for different audiences. Source 2 is a text written to inform readers of a new scientific discovery‚ who are newspaper readers interested in the subject. Source 3 is a non-fiction text‚ written to inform readers of a life changing experience‚ who read and are interested in stories of adventure. Source 2 uses practical
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to our text book‚ primary sources of secondary research include audio‚ video‚ or written transcripts of original research speeches in entirety‚ and raw data that has not been interpreted. Primary sources serve as the best sources as they have not been diluted with thoughts or interpretations of another source. Laws‚ court documents‚ census‚ human resource records‚ are primary sources. Primary sources are most trustworthy and valuable sources of data. Secondary sources are the interpretation of
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Speech: Energy drinks are dangerous Energy drinks are beverages that can be used to supplement energy and concentration. It contains several ingredients‚ some good others bad. They contain ingredients such as caffeine‚ guarana‚ taurine and many more. Usually they are beneficial‚ but when taken in large amounts; some ingredients can cause unwelcome side effects. Many people consume energy drinks for enjoyment and the extra kick of energy for the day‚ but they are not aware of the hidden ingredients
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know that energy drinks put more than 10‚000 people in the hospital in 2016. Many people think that energy drinks should be age restricted. Energy drinks have a lot of calories‚ sugar‚ and caffeine. Energy drinks should be banned because they are dangerous‚ abused‚ and children can not handle it. Energy drinks are very dangerous. One energy drink increases your heart rate‚ increases blood pressure‚ and puts a large amount of sugar in your body. If you consume large amounts of energy drinks it actually
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