Physics

• For every action, there is an equal and opposite reaction.
• • Qualitative are with no numbers e.g. colour, chape, texture, material
• • Quantitative are with numbers e.g. length, volume, weight, mass
• 0D- can't move

  1D- Left, right

  2D- Up,down,left,right

  3D- Forwards, backwards, up, down, left, right
• In 1D motion, as long as direction is not reversed, distance = displacement
• Speed = Distance/time (m/s)
• 1. v = u + at
  2. v² = u² +2as
  3. s = ut + ½at²
• u = initial velocity (m/s)

  v = final velocity (m/s)

  t  = time (s)

  a = acceleration (m/s²)

  s = displacement (m)
• Acceleration is directly proportional to the net force acting on an object and inversely proportional to its mass.