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PhysOct31

# PhysOct31 - October 31 Physics In What is energy Objective...

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October 31 Physics

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In: What is energy?
Objective : To begin our study of energy Success criteria: Be able to solve work problems .

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Energy Unit Big Question: How does energy transfer from one form to another and help us do work? Challenge: To create a demonstration that shows the Conservation of Energy.
What do we need to know first: Types of energy: Work Kinetic energy Gravitational potential energy Elastic potential energy Law of conservation of energy Power

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Types of Energy: Work
Work

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Notes: Work=force x distance Force and distance must be in the same direction
Problem: A windmill pumps 200 kg of water a distance of 10 meters high. How much work did it do?

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Two men push a box 50 meters across the floor. Each gives a force of 100 N. How much work do they do?
A woman does 50 push ups. When she does a push up she lifts half of her 50 kg body up . 5 meters. How much energy does she use?

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Henry pushes a toy car 150 m with a force of 40 N. His sister Trisha then pushes the car with a force of 100 N for a distance of 30 m.
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PhysOct31 - October 31 Physics In What is energy Objective...

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