effect vs affect

Whats the difference between affect and effect?
My English teacher keeps taking off a ton of points on my papers because i use the wrong one. (Affect or effect). Could you explain to me whats the difference? Thanks!
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affect or effect?

In general use, affect is only used as a verb, whereas effect is commonly used as a noun and only in formal contexts as a verb. What causes confusion is that they have very similar pronunciations and closely related meanings. If one thing affects [acts upon] another, it has an effect on it [causes it to change]. Notice also that you can affect [cause a change in] people as well as things, but you can only effect [bring about] things such as changes: The election has affected our entire society, for it has effected major changes in the government.The bad weather has a bad effect [not affect] on him.
Generally speaking, affect is a verb and effect is a
noun. When you affect something, you produce an effect on it. Even in the passive voice, something would be
affected, not effected.
AFFECT is to have an impact on someone.
EFFECT is a result.
Source(s):
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