Practice Exam for APEs Chapters 1‚2‚3‚4‚5‚6‚8 &28 Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. A person who is primarily interested in the establishment of new wilderness areas would be considered a(n) a. ecologist. b. preservationist. c. restorationist. d. conservationist. ____ 2. Natural capital includes all of the following except a. sunlight. b. air. c. water. d. soil. ____ 3. All of the following illustrate
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Hydraulics Prof. B.S. Thandaveswara 9.3 Application of Specific Force and Specific Energy 1. Determine the energy Loss in a NHJ Solution: Applying Momentum equation γQ ( V2 − V1 ) = P1 − P2 g γ Q 2 ( y1 − y 2 ) gb 2 y1y 2 2 2 2 = y1 − y 2 ( ) Q2 2gb Q2 b 2 = ( y1 + y2 ) y1y2 4 = q2 q 2 ( y1 + y 2 ) y1y 2 = (1) 2g 4 Specific energy equation y1 + V12 V2 = y 2 + 2 + ∆E 2g 2g Q2 2 2gy1 b 2 ∆E = y1 + − y2 − Q2 2 2gy 2 b 2 1 ⎤ q2 ⎡ 1 ∆E = ( y1 − y
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Energy in food lab report Aim: How much energy there is in food. Hypothesis: If I work out how much the water temperature has risen by burning food underneath water‚ the mass of the water and the mass of food I can work out how much energy was in the food. Introduction: This experiment is about how much energy there is in food. There are a few different types of energy‚ the one we are looking at is chemical energy. Some other types of energy are: thermal energy which is heat‚ magnetic energy which
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that could power a jet‚ NASA engineer Bilal Bomani presents his work in turning the field of aviation into an environmentally friendly service. At NASA’s GreenLab Research Facility‚ he uses algae and halophytes to create a self-sustaining‚ renewable energy ecosystem that doesn’t consume arable land or fresh water. Bomani’s work has a set of guidelines which it must follow. In order to be truly Green‚ Bomani’s fuel must be Sustainable‚ Alternative and Renewable. Meaning that it must have a low carbon
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Identify three renewable energy sources and assess their potential to replace fossil fuel The rapid depletion of fossil fuels has given serious warning that the era of using conventional energy is coming to an end. Due to the energy shortage‚ a need to find replacement of fossil fuels has appeared. Moreover‚ problems such as various pollution and serious climate change have occurred‚ which makes renewable and less pollution energy source alternative choices. Therefore‚ three options can be suggested
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Experiment 4.5 Measuring the energy content of a “Dorito” and Popcorn. Using the method as described on page 46 of the textbook‚ measure the energy content of a Dorito and a “Popped” corn kernel. Aim: 1. Compare your results of each food and determine which will give the greatest energy per gram. 2. How much of each food would you need to boil 250mL of water? Hypothesis: (Before you begin‚ what do you think will be the conclusion.) As the Dorito is heated‚ it will release much more heat
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Energy and Fossil Fuels January 30‚ 2012 I will be covering different types of energy and how they are converted into other forms of energy. I will also discuss what fossil fuels are‚ alternatives to fossil fuels and the advantages and disadvantages of alternatives. There are several different forms of energy and how it can be converted from one type to another. According to The Law of Conservation of Energy; energy can neither be created or destroyed‚ only transferred
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___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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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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