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3 Cards in this Set

  • Front
  • Back

What is an ion

An atom or molecule that gains or loses and electron

What is the law of reflection

The angle of reflection is equal to the angle of incidence

What is far sighted ness, near sighted ness, presbyopia and astigmatism

Far sightedness: can only see distant objects


Near sightedness: can only see close oblects


Presbyopia: far sightedness caused by loss of elasticity


Astigmatism: a defect in the eye caused by a misshapen eyeball