Transfer of Energy Law of Conservation of Energy.

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Presentation transcript:

Transfer of Energy Law of Conservation of Energy

What is Energy? The ability to do work #1 source of energy is the sun

Our Food Energy is measured in Calories

2 types of Energy 1. Potential energy-energy that is stored 2. Kinetic Energy-energy in motion

6 forms of energy M-Mechanical something that moves (ex. Pinwheel, waterwheel, paddleboat) C-Chemical-Stores up molecules-battery, digestion H-Heat –Thermal Energy, Heating and Cooling S-Sound-Sound Vibrations L-Light –Illumination E-Electrical Energy-plug ins

Law of Conservation of Energy Energy can not be created nor can it be destroyed. It can only be transferred.

Heat Energy Heat will always transfer from hot to cold Heat will cause objects to expand Without heat, objects will contract Insulation, wood, glass, rubber, plastic act as insulators

3 ways that heat can move 1. Conduction-allows heat to transfer through solid object 2. Convection-molecules move from liquid to gases 3. Radiation-energy moves through rays and waves-X-Rays, microwaves

Light Energy Transfer Light occurs through Illumination Electromagnetic Spectrum Roy G Biv Red, Orange, Yellow, Green, Blue, Indigo and Violet Light can pass through empty space

Light is either Transparent-Can see through Translucent-Frosty Opaque-Can’t see through at all

Light Absorbs matter Dark absorbs more, while light reflects

Reflection Light bounces off objects

Refraction Bends light

Kinetic energy Energy in motion

Potential Energy Energy in position or that is stored

All Roller Coasters obey the same law Galileo's Stop Height Positive and Negative G Force

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