“The energy for life comes from the sun.” Outline the role of the photosynthesis process to explain what is meant by this statement. (3 marks) chlorophyll 6CO2(g) + 6H2O(l) + energy C6 H12 O6 (aq) + 6O2(g) 2830 kJ glucose Photosynthesis is the process in which plants use the sun’s light energy to convert carbon dioxide and water into carbohydrates such as glucose‚ sucrose‚ starch and cellulose. Carbohydrates are high energy compounds
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Running Head: Energy Conversion Energy Conversion Marlon Walker Professor Abdul Kahn SCI 110: Integrated Science October 21‚ 2011 Abstract Energy conversion has been a topic of debate and research for many years. Scientists conduct experiments in hopes of finding an alternative to relying on burning fossil fuels for electricity. While companies who believe their alternative is the best choice‚ debate over whose source is the “greenest”. Whether it be biomass‚ hydroelectricity‚ solar
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SCIENCE INFORMATIC WS011 CONSERVATION OF ENERGY GROUP MEMBER: 1. ADRIAN HO IK LIANG (MS0915542624) 2. MOHD. TARHAMIZI BIN ABD HAMID ( MS0915515816) 3. ZURINAH BINTI PAKEE ( MS0915517005) 4. DESMOND ANAK BONNIK (MS0915514779) 5. ELMA LIM ( MS0915514865) LECTURER ’S NAME: MR. SYED NASIR BIN SYED AHMAD Content Title INTRODUCTION POTENTIAL ENERGY GRAVITATIONAL POTENTIAL ENERGY ELASTIC POTENTIAL ENERGY KINETIC ENERGY PRINCIPLE OF CONSERVATION ENERGY WORK-ENERGY THEROM CONCLUSION BIBLIOGRAPHY Page 1
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Extra Credit Assignment Energy Transfer in living systems Energy is the capacity to do work. All living organisms require energy for carrying on their vital metabolic activities. The primary source of energy for living system is solar radiation. The radiant energy of sunlight cannot be utilized directly by all living organisms. This ability rests only with the green plants. All the other organisms have to meet their energy requirement only through the green plants. Energy that flows in the living
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eventually falls in the liquid with a constant speed of 6.0 cm s . k www.studyguide.pk www.studyguide.pk www.studyguide. (i) For this sphere travelling at constant speed‚ calculate k www.studyguide.pk www.studyguide.pk www.studyguide. 1. its kinetic energy‚ k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk www.studyguide. k www.studyguide.pk www.studyguide.pk
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discussed in Detail about Wind Energy and the production of electricity from moving vehicles. So first we defined Energy. Till Now we have studied that energy is the ability of a body to do work .it can also be defined as the ability of a body to bring some change is the energy of that body. Energy is very necessary for human beings; every thing in the universe possessed some energy. There are two main kinds of Energy 1. Kinetic Energy 2. potential Energy Kinetic energy is produced by the motion
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work the machines. Energy has everything and anything to do with my project. It is a very important term to understand. Energy is a very important factor that determines how far the cars I made for my project will go. This illustrates how if the car doesn’t have enough kinetic energy the car won’t go very far. According to my research‚ If work‚ which transfers energy‚ is done on an object by applying a net force‚ the object speeds up and thereby gains kinetic energy(Kinetic Energy) which will make
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Work and Energy Worksheet Section 1 Work: 1. A person pulls a toboggan for a distance of 35.0m along the snow. The force in the rope (tension) is 94.0N. How much work is done on the sled? Solution: W= Fd W= 94.0N x 35.0m W= 3290 Nm or J 2. The cable of a large crane applies a force of 2.2x10^4N to a demolition ball as it lifts it vertically a distance of 7.6m. a) How much work is done on the ball? b) Is the work positive or negative? Why? Solution:
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Human power-based energy harvesting strategies for mobile electronic devices a. Describe the application (10%) 1.2.3 Wearable or implantable medical devices Implantable or wearable medical devices refer to any device that could help monitor metabolic parameters‚ assist defective physical function or cure diseases. Structural devices such as artificial joints‚ vascular grafts and artificial valves are called passive devices and their working does not need external power. But active
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POTENTIAL ENERGY DIAGRAM In physics the terms of mechanical energy usually refers to Potential energy (U) and Kinetic Energy (K). In the absence of non-conservative‚ or dissipative forces‚ these energies obey the law of conservation of energy‚ or ΔU + ΔK = 0. That is‚ when a system is only acting under the influence of conservative forces its total energy content never changes‚ the energy just converts between forms. At any point in the cycle‚ the total energy is constant‚ U + K = Umax = Kmax
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