Mechanical Energy, Thermal, and Electrical energy 2013.notebook. January 22, Energy. Energy!!!! Everywhere!!!!

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1 Energy Everywhere!!!! Energy!!!! 1

2 Mechanical Energy Vocab Mechanical Energy Vocabulary 2013.doc 2

3 Diagram PE and KE Potential Energy = stored energy (not moving) mass and height affect PE Kinetic Energy = moving energy *Higher you move the string your PE increases! *PE transferred to KE once pendulum moved WEIGHT STRING STRING STRING MOVING WEIGHT Two Types: Gravitational potential Elastic Potential Gravitational decrease GPE Increase the stretch The more Kinetic energy will be' transformed. WEIGHT MOVING 3

4 Two types: Gravitational Elastic 4

5 Elastic Potential energy in a ball slow motion tennis ball bounce elastic potential energy 5

6 Guided Notes 2013 potential kinetic venn diagram.pdf pg guided notes 2013.docx 6

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13 Net Force Calculations balanced and unbalanced forces 2013.pdf Represented by an arrow. The larger arrow signifies the larger force 13

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16 20 N 10N Direction 20 10=10N of strength 16

17 Mrs. J Ava Push Pull Push Pull 17

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19 Pendulum Lab Pendulum Lab docx Next several slides are the answers from class! 19

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25 Ramp Lab Tan_Center station 2013.doc Work video 25

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31 Ch. 6 Vocab thermal 2013.doc 31

32 thermal energy Kinetic = moving Thermal energy: is the movement of particles of matter due to its temperature The measure of how hot or cold something is temperature: The heating of 3. Convection matter that is only measured in Fahrenheit and Celsius and Kelvin The more particles of Matter an object has the more its thermal energy wheṇ the temperature is the same. HIGH" LOW Thermal energy: High to low temp Transfer of Heat 3 Types Conduction : when matter is heated due to touching. The thermal energy will travel from high temp to low temp. ex. pot on a stove, the high temp land Warming The a lower temp air = 2. Radiation: the transfer of heat through electromagnetic waves. (ultraviolet,infared, visible light) ex.sunlight, campfire liquid and gas. When air or water are heated they expand (heat expansion)which cause them to lose density when they get cooler the particles of matter huddle together and become more dense The colder more dense air or water moves to the low dense warm air and pushes it in a continual cycle of swishing (aka heat transfer) which are called convection currents (wind) 32

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35 Density The amount of matter in a given space. Mass/Volume= Density g/ml Air has density. Air takes up space therefore, has volume and mass. If there are more molecules in a given volume of air, the density is greater. If the molecules decrease then the density decreases. Air pressure is the result of the weight of a column of air pushing down on an area. A denser substance has more mass per unit volume than a less dense one. So denser air exerts more pressure than less dense air. What temperature is denser air? Colder or warmer? 35

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37 heat rising from boiling water Radiation feeling sun Heat Transfer On your face heat from a heater heat from flame Convection Heat transfer that occurs when warmer less dense air is pushed by colder denser air. (Winds) lava lamp Heat transfer That occurs The most on earth Conduction 37

38 Welcome Back! Heating of the Earth's Surface Lab 38

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48 Conductors and Insulators BP insulators and conductors Conductor and insulator worksheet insulator do not Conduct (pass through) heat and electricity are materials that Conductors Is a material That allows heat and electrical energy to pass through 48

49 Geothermal: A renewable source of energy using the heat from The Earth's mantle to generate (make) electrical energy. Generator: a large motor that spins to Transform Mechanical, Thermal, Electric current vocab 2014.docx a solar energy into electricity (electrical energy) Solar energy: A renewable source of energy that uses a solar panel to capture the suns energy to create electrical energy pgs 227 pgs

50 Bill Nye: Electricity Bill Nye 50

51 Guided Notes pgs Electrical Energy Notes 51

52 Electrical Energy Notes 52

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64 Attachments Mechanical Energy Vocabulary 2013.doc Pendulum Lab docx 2013 potential kinetic venn diagram.pdf pg guided notes 2013.docx balanced and unbalanced forces 2013.pdf Elastic Potential energy in a ball slow motion tennis ball bounce elastic potential energy Tan_Center station 2013.doc Work video Ch. 6 Vocab thermal 2013.doc heating of the earth's surface lab 2013.docx BP insulators and conductors Conductor and insulator worksheet Electric current vocab 2014.docx Bill Nye Pearson Electrical Energy Notes 2014.docx

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