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Published byAllen Mosley Modified over 8 years ago
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Physics 2-13-08
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Mousetrap lists Hand in Answer questions
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Question A pulley system lifts a 1345 N weight a distance of 0.975 m. Paul pulls the rope a distance of 3.90 m, exerting a force of 375N. A) What is the ideal mechanical advantage of the system? B) What is the mechanical advantage? C) what is the efficiency?
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What is energy? Related to Work done on object Related to Work done on the environment Currency
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Relationship to work and units The amount of work done to an object is equal to the change in energy in creation and application of the force Work-energy theorem Units
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Definition Energy is the ability to do work on an object or alter the surrounding environment
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Like currency, energy comes in different types Kinetic Potential
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Types of large scale Potential Energy Gravitational Elastic
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Examples in life of Kinetic and Potential energy Paper Exercise Locate 10 examples of objects that possess Kinetic energy Locate 10 examples of objects that possess GPE Locate 5 examples of objects that possess EPE
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Other types of energy
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