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LC Physics
LC Physics
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Force and Types of Forces

Parts and functions of the eye

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LC Physics

All Physics Definitions for Leaving Certificate - Higher Level

Light

  • Refraction is the bending of light as it goes from one medium to another.
  • Laws of Refraction: (1) Incident ray, refracted ray & normal are on the same plane. (2) Sine I/Sine R is constant.
  • Refractive Index: Sine I/Sine R = 1/Sin C = Real depth/Apparent depth = c1/c2
  • Critical Angle: The angle whose angle of incidence is 90 when light goes from a denser to a rarer medium.
  • Total Internal Reflection: When light travelling from a denser to a rarer medium strikes the second medium with an angle of incidence greater than the critical angle, it is reflected... (More)

Newton’s First Law of Motion – every object will remain in a state of rest or travelling with a constant velocity unless an external force acts on it.

Newton’s Second Law of Motion – the rate of change of an object’s momentum is directly proportional to the force which caused it.

Newton’s Third Law of Motion –  if an object A exerts a force on an object B, then object B will exert an equal but opposite force on object A.