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Big Ideas from National Framework PS3: Energy - Coggle Diagram
Big Ideas from National Framework PS3: Energy
Energy is transfered
Energy is not created nor destroyed so it has to be transferred and this is a conservation of energy
Motion energy of one object can be transferred to another when objects collide
Energy can be transferred with electric currents
Heat transfer= energy moves from higher temperature to lower temperature
Uncontrolled systems evolve toward uniform distribution within the system or environment
Grade Band Endpoints
End of 2nd know sun warms Earth's surface
End of 8th grade know when motion energy of one object changes there is another change in energy at same time
End of 12th-know conservation of energy well and be able to see mathematical expressions for it
Energy is neither created not destroyed. Energy is conserved.
manifests itself in phenomena: motion, light, sound, electrical and magnetic fields, thermal energy.
Motion Energy= Kinetic energy
Thermal energy= random motion of particles and energy is distributed among particles
Enery stored within a system is potential energy
Grade Band Endpoints
End of grade 5 they do not have to give a complete definition of energy
End of Grade 8 the proper name is used for motion energy (Kinetic energy)
End of Grade 12 Energy is seen as a quantitative property of a system
**All energy at atomic scale are a mix of kinetic energy, stored energy, and radiation
Energy and forces
Two objects interacting causes one to exert force on the other object
When the force field changes in their relative position the energy also changes
Patterns of motion can be understood in terms of transformation of energy
Grade Band Endpoints
End of 2nd- Know that bigger pushes and pulls makes things speed up. Also fast speeds in collisions cause bigger changes in the shape of the object colliding
End of 5th- transfer energy occurs when objects collide but also untouching objects like magnets
Energy in chemical processes and everyday life
In order to produce energy, stored energy is sued and converted into a desired form like electricity
As a system carries out a process energy is not destroyed
electric power generation is based on fossil fuels
energy can also be converted to less useful forms such as for storage or distribution
Grade Band Endpoints
End of 2nd- must know friction, what happens when surfaces have friction, and how to reduce friction between two surfaces
End of 5th- must know what it means to produce energy
End of 8th must know chemical reaction by which plants use to get energy input