different types of energy transfer For us to do work‚ we need energy. Energy is measured in joules‚ (J) or kilojoules (kJ) Energy exists in many different forums such as Kinetic and potential energy – Kinetic energy is the movement of energy and potential is stored energy‚ energy ready to go. A lawn mower filled with gasoline‚ a car on top of a hill‚ and students waiting to go home from school are all examples of potential energy. Gravitational potential energy is the energy crazed by a body
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2013 Living things and The Sun’s Energy Most of the energy we use is from the sun. This energy from the sun is called solar energy‚ plants convert it into energy‚ and animals eat plants and convert that into energy. Humans eat plants and animals and convert those into energy; humans also use solar energy to create electricity. How exactly then is the sun’s energy converted into a sustainable energy source? One process is photosynthesis. In plants‚ cells called chloroplasts collect energy from
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describe the ability to provide electricity to remote objects without wires (wireless power transfer). This could be useful to power consumer and industrial electronics like cell phones‚ laptops‚ etc. -WiTricity‚ a portmanteau for "wireless electricity"‚ is a trademark of WiTricity corporation referring to their devices and processes which use a form of wireless energy transfer‚ the ability to provide electrical energy to remote objects without wires using oscillating magnetic fields. The idea of wireless
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Hwa Chong Institution Sec 3 (SMTP) Name: ________________________________________ Class: __________ Date: ___________ Sec 3 Physics (SMTP) Topic 10: Transfer of thermal energy THERMAL EQUILIBRIUM & THE ZEROTH LAW OF THERMODYNAMICS Thermal Equilibrium If you want to know the temperature of a cup of hot coffee‚ you stick a thermometer in the coffee. As the two interact‚ the thermometer becomes hotter and the coffee cools off a little. After the thermometer settles down to a steady value‚ you
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words and identify examples for the different energy types energy: The ability to do work. work: A force exerted over a distance. W= FxD law of conservation of energy: Energy cannot be created or destroyed. Energy is only transferred between objects. potential energy: Energy that an object holds based on its position. Energy that is waiting to be released. chemical energy: Energy stored inside atoms and molecules. (e.g. burning a match) thermal energy: Energy created by the movement of molecules in an
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Why Do Living Things Need Energy? All living things need energy to survive. Nearly all the energy for life comes from the sun. Autotrophs are organisms that make their own food. There are two laws of Thermodynamics: • First Law- The law of conservation of energy‚ which states that energy can be converted from one form to another‚ but it CANNOT be created or destroyed. • Second Law- States that energy cannot be converted without the loss of usable energy IMPORTANT TERMS Energy- the ability
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TRANSFER Pursuant to Section 214‚ the capable of being transferred under the code namely; The whole‚ not partly of any alienated land. The whole‚ not partly of any undivided share in any alienated land. Any lease of alienated land Any charge Any tenancy exempt from registration Lease can transfer and didn’t register. Tenancy is exempt from register mean do not need to register‚ it is depend on the tenant want or not. The land transfer either is freehold or leasehold land‚ but must be done in WHOLE
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Comparison microscope Stereoscopic microscope Micrometer caliper chronograph A comparison microscope is a device used to analyze side-by-side specimens. It consists of two microscopes connected by an optical bridge‚ which results in a split view window enabling two separate objects to be viewed simultaneously. This avoids the observer having to rely on memory when comHistory In the 1920s forensic ballistics was waiting at its inception. In
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Lectures of Heat Transfer Heat Transfer Rate Processes Mode Conduction Convection Radiation Transfer Mechanism Diffusion of energy due to random molecular motion Diffusion of energy due to random molecular motion plus bulk motion Energy transfer by electromagnetic waves Rate of heat transfer (W) q = - kA dT dx q = h A(Ts-T∞) q = σ ε A(Ts4-Tsur4) By Mr. Amjed Ahmed Ali Syllabus of Heat Transfer (English)‚ (2 hours/ week‚ Applied 2 hours /week) 1.Heat transfer by conduction‚ convection
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Mechanisms of Heat Transfer Prepared by: Ms. Ana Antoniette C. Illahi 1 Conduction • conduction (or heat conduction) is the transfer of thermal energy between regions of matter due to a temperature gradient. Heat spontaneously flows from a region of higher temperature to a region of lower temperature‚ and reduces temperature differences over time‚ approaching thermal equilibrium. Prepared by: Ms. Ana Antoniette C. Illahi 2 (Heat Current in Conduction) • • • • • • • • H - Heat
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