___24/03___ Topic: Energy Flow‚ Food Chains & Food Webs Multiple Choice Questions (10 Marks) Write your answers in the boxes below: 1 2 3 4 5 6 7 8 9 10 B B C C A A A D B B 1 Which of the following describes the flow of energy in an ecosystem? A heat energy chemical energy light energy B heat energy light energy chemical energy C light energy chemical energy heat energy D light energy heat energy chemical energy 2 The
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Energy Workers of the World Energy workers have an enormous impact on our world. It’s hard to believe that not even 80 years ago we were without electricity. As technology advances‚ it has become apparently easier for man to live comfortably. People do not realize how important these workers are and what life would be like without them. Almost everything we do‚ each and everyday‚ involves something to do with what an energy worker has pursued. Some of these things include lights‚ computers‚ televisions
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Daylight Saving Time is loved by some‚ hated by others and tolerated by most. Arizona and Hawaii residents do not have to think about it. These states are exempt from the time change problem. The Uniform Time Act of 1966 made Daylight Saving Time a federal law that exempts only the states that voted to keep Standard Time. The problems created by Daylight Saving Time outweigh any benefits of energy savings‚ if those savings really exist. There is little or no evidence of energy savings from
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Role of energy in the body There are six main forms of energy- Chemicals Heat Electrical Light Nuclear Sound Energy can be measured or expressed by joules or unites of hear (kilocalorie). 1 kilocalorie= 4.184 kilojoules. Sources of energy- Protein 1g= 4 kcal Carbohydrate 1g= 4 kcal Fats 1g= 9 kcal In our bodies we need energy we need energy for everything we do‚ move our muscles‚ talk etc. Without energy we wouldn’t be able to do anything‚ energy is needed for our bodies to function
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Written Report D1 Energy Balance Energy balance is the connection between the “energy in” which is the food calories which are consumed into the body through food and drink and the “energy out” which is the calories which are being used within the body for our daily energy requirements. An
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Geothermal Energy Introduction: 1. Good morning every one. My name is…. A. First‚ I have a question for you guys. How many kinds of energy you know until now? (Watch for feedback) B. Ok‚ so have you heard geothermal energy before? Good‚ I am goanna show you some pictures first. C. When I heard this term‚ there are few questions came out in my mind‚ what is the geothermal energy? how the new energy works? Is the
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Energy content is an important property of food. The energy your body needs for running‚ talking‚ and thinking comes from the food you eat. Energy content is the amount of heat produced by the burning of 1 gram of a substance‚ and is measured in joules per gram (J/g). Usually‚ fat-rich foods like peanuts and cashews provide more energy than just carbohydrates like marshmallows. You can determine the energy content by burning a portion of food and capturing the heat released to a known mass of
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Conservation of energy and transformation of energy. By Paige‚ Stacie‚ Amelia. Objectives Learning about Conservation of energy Learning about transformation of energy Conservation – Preserving a substance. Metabolism Metabolism is a process in which you break down foods into calories and these are combined with oxygen to release the energy that your body needs in order to function/live. This is a very complicated bio-chemical process. Metabolism is essential for the energy for these functions:
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Talking Energy Meter The purpose of this project is to build a KWH (Kilo Watt Hour) meter that can alert the users with voice messages. An Energy meter or KWH meter is a device that measures the amount of electrical energy supplied to or produced by a residence‚ business or machine. Electricity is a clean‚ convenient way to deliver energy. The electricity meter is how electricity providers measure billable services. The most common type of meter measures kilowatt-hours. When used in electricity
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1) Discuss the three energy systems that are responsible for the production of ATP. Adenosine triphosphate (ATP) is the immediately usable form of chemical energy use for muscular activity. It is stored in most cells‚ especially muscle cells. Other forms of chemical energy‚ such as that available from foods we eat must be transforming into ATP before they can be utilized by muscle cells . Human body cells generated ATP by three methods which are: I. ATP-PC system II. Glycolytic system
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