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Science (Physics (Acceleration (forces on a car (weight, reaction force,…

- - - - velocity / time m/s / s = m/s squared (acceleration)
      - area of a triangle = 1/2 base x height
    - - work out the area of the space underneath the line
  - - - weight
      - reaction force
      - driving force
      - friction
      - air resistance / drag
    - - the force pulling the object backwards
      - the force you get when an object moves through the air
    - - the force that enables compasses to work
    - - the force you get when two materials rub together
    - - f = force
      - m = maximum energy force
      - a = air resistance
    - - e = energy
      - p = power
      - t = time
    - - stopping distance = thinking distance + braking distance
      - thinking distance
        
        the distance travelled between when the brakes are applied to when the vehicle comes to a stop
      - braking distance
        
        the distance travelled between when the brakes are applied and when the vehicle comes to a stop
  - - - an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force
    - - the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object
    - - for every action, there is an equal and opposite reaction
  - - - 'work done' is the energy transferred
- - - - protons
        
        mass = 1
        
        positive charge (+1)
      - neutrons
        
        no charge (0)
        
        mass = 1
      - electrons
        
        negative charge (-1)
        
        mass = 0.0005
      - finding protons, neutrons and electrons
        
        protons
        
        the small number (which in this case is 8)
        
        electrons
        
        the same as the protons (which in this case is 8)
        
        neutrons
        
        the big number take away the small number (which in this case is 16-8)
        
        if it ends up being a decimal then it means that it becomes an isotope (1)
      - the small number above the letter is the atomic number
        
        the bigger number at the bottom is the atomic mass number
  - - - no. of electron shells
    - - no, of electrons in outer shell
  - - - ions (positive + negative)
      - both metals and non metals
    - - non metals
      - share electrons
  - - - CD's
      - cars
      - refridgerators
      - kitchenware
      - computers
      - power cables
      - bicycles
      - space blankets
      - battleships
      - aeroplanes
    - - light
      - unreactive
      - doesn't rust
      - can't be sensed on radars
      - reflective
      - unreactive
    - - a red mineral made of aluminium oxide and iron oxides
      - mined in various places, e.g Russia, Jamaica
- - - - Nucleus
        
        Animal, Plant
      - Cell membrane
        
        Animal, Plant
      - Mytochondria
        
        Animal, Plant
      - Cell wall
        
        Plant
      - Vacuole
        
        Plant
      - Cytoplasm
        
        Animal, Plant
      - Chloroplast
        
        Plant
      - Ribosomes
        
        Animal, Plant