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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SPH4U0 2-D COLLISIONS LAB PURPOSE To determine if momentum and kinetic energy are conserved during elastic and inelastic collisions. PROCEDURE AND CALCULATIONS 1. Run both the elastic and inelastic collision simulations and record the data as instructed by the teacher (you will do an import). You will need to base your calculations on the data before and after the collision. Do not use data in the middle because it is not clear exactly when the collision occurs. The software measures time
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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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1990 1. A constant mass undergoes uniform acceleration when the resultant force acting on it A is proportional to the displacement from a fixed point. B is proportional to the velocity. C is zero. D is constant but not zero. E increases uniformly with respect to time. 2. Two blocks‚ X and Y‚ of masses m and 2m respectively‚ are accelerated along a smooth horizontal surface by a force F applied to the block X‚ as shown in the diagram. [pic] What
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Forms of Energy Energy Is the capacity to cause change Exists in various forms‚ of which some can perform work Kinetic energy Is the energy associated with motion Potential energy Is stored in the location of matter Includes chemical energy stored in molecular structure AP Biology 1 Division Ave. High School Ms. Foglia AP Biology Energy can be converted From one form to another On the platform‚ a diver has more potential energy. Climbing
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11 Using Energy © 2010 Pearson Education‚ Inc. Slide 1 © 2010 Pearson Education‚ Inc. Slide 2 © 2010 Pearson Education‚ Inc. Slide 3 © 2010 Pearson Education‚ Inc. Slide 4 Reading Quiz 1. A machine uses 1000 J of electric energy to raise a heavy mass‚ increasing its potential energy by 300 J. What is the efficiency of this process? A. B. C. D. E. 100% 85% 70% 35% 30% © 2010 Pearson Education‚ Inc. Slide 5 Reading Quiz 2. When the temperature of an ideal
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Physics Energy Exploration Project Energy can be stored in many forms as potential energy. It can be extracted through chemical and mechanical processes to get usable energy. We use that kinetic energy and electricity every day to power our lights‚ run our cars and do most of our tasks. Fossil Fuel is a non-renewable energy source. It results from the decomposition of dead and buried organisms. They are millions of years old and are fossilized under rock and sand. They are efficient energy producers
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Abstract :The purpose of the experiment is to explore elastic and inelastic collisions in order to study the conservation of momentum and energy. The guided track‚ carts‚ photogates ‚ 250 g weight and picket fences were the primary components used in the procedural part of the experiment. Each experiment involved the use of the photogates and picket fences to measure the initial and final velocities of both carts when they collide. The data was collected and translated to a graphical model for further
Free Kinetic energy Classical mechanics Introductory physics
particles do not change. The moment of inertia of a single particle I can be expressed as [pic] where m = the mass of the particle‚ and r = the shortest distance from the axis of rotation to the particle. [pic] KINETIC ENERGY OF ROTATION AND MOMENT OF INERTIA: The kinetic energy of system of particles of masses m1‚ m2…….mn is defined as K.E = [pic] = [pic] Substituting v = (r [where ( is the angular speed of the rotating body]‚ we have K.E = [pic] in which ( is the same for
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Renewable energy Renewable energy is any source of energy that doesn ’t consume the finite resources of the Earth and can be easily and quickly replenished. At present only a small proportion of the world ’s energy needs come from alternative and renewable energy sources. These exist in many forms including Solar Thermal‚ Photovoltaics‚ Wind‚ Hydro‚ Tidal/Wave and Bioenergy (including Biomass‚ Biogas and Biofuels). As with fossil fuels the sun ’s energy is the ultimate source of these energies.
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