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physics year 7 - Coggle Diagram

- - - - sound cannot travel in a vacuum because there are no particles to transfer the vibration this is demonstrated in the bell jar experiment where when more particles are removed the sound gets quieter
- - - - dissipated energy= not useful
  - - - energy transfers
        
        mechanically
        
        nuclear due to an object having atomnic energy
      - energy stores
        
        thermal
        
        this is due to an object's heat
        
        kinetic
        
        energy due to the object's motion
        
        GPE
        
        GPE (gravitation potetntial energy) is energy due to an objects distance from the core of earth
        
        chemical
        
        energy due to an object having a chemical reaction
        
        magnetic
        
        energy due to the object's magnetic field
- - - - protons have a +1 charge, neutrons have 0 charge, electrons have a very small mass and -1 mass there are equal amounts of protons and electrons so overall charge is 0
      - series circut the current is equal everywhere
      - parallel circuts have different currents everyway