AS Physics 1.2 Keywords

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Author:
kc97
ID:
298412
Filename:
AS Physics 1.2 Keywords
Updated:
2016-01-16 19:17:22
Tags:
Mechanics
Folders:
AS Physics Unit 1
Description:
AS physics
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  1. Newton First law (2 marks)
    • An object continues in its state of rest or in uniform motion in a straight line unless acted upon by an external force.
    • Resultant force is equal to zero.
  2. Free body diagram
    A diagram which shows all the forces acting on a body
  3. Centre of gravity
    The single point at which the weight of an object appears to act
  4. Centre of mass
    the point at which all the object mass may be considered to be concentrated
  5. Newton second law
    F=ma
  6. Newton third law
    If body A exerts a force on body B, body B exerts a force of the same size on body A, but in the opposite direction
  7. Equilibrium?
    When an object has balanced forces acting on it

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