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Subtopics - Coggle Diagram

- - - - This circuit has two lamps connected in series.
      - Circuits are always drawn using straight lines.
  - - - A parallel circuit is one which contains a point (a junction) where
        the current can split (point A) or join (point B).
      - This means that there is more than one path around the circuit.
      - Current in parallel circuit
        
        The current splits up at the first junction and then joins together at the second junction.
        
        If the bulbs are identical then the current will split evenly.
        
        If the bulbs are not identical, then the current will not split evenly.
    - - Energy cannot be created or destroyed.
      - In all devices and machines, including electric circuits, energy is transferred from one type to another.
      - When this circuit is connected, chemical energy stored in the battery is transferred via electrical energy to heat and light energy in the bulbs.
      - The total amount of heat and light energy is the same as the amount of chemical energy lost from the battery.
  - - - Nor Gates, Not Gate, Or Gate, Nand Gate, And Gate, Xor Gate, Xnor Gate.
- - - - The free electrons can move around
        and vibrate.
      - The heat energy is passed on by neighbouring
        particles vibrating along the metal.
      - Metals have atoms inside them and lots of free electrons.
- - - - moment = force (N) x distance from pivot (cm or m)
  - - - pressure = force/area
      - Pressure is measured in:
        Newtons per square metre (N/m2),
        
        also called
        pascals (Pa).
      - pressure can also be measured in
        
        Pressure can also be measured in:
        
        Newtons per square millimetre (N/mm2);
        
        Newtons per square centimetre (N/cm2).