Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
I suggest never using the word "deceleration". If one means, slowing
down, then I suggest saying "slowing down". If one means, an
acceleration in the -x direction (or along whatever axis), then say
that. If one means, an acceleration that is opposite to the
velocity, then say that. Deceleration is often used with different
meanings. It's no wonder students are confused.
The words "increasing" and "decreasing" can be confusing if one isn't
careful to distinguish between the magnitude of a quantity and the
quantity. I use this example in my class: If your checking account
is in overdraft protection with a balance of -$400 and you deposit
$300, has your balance increased or decreased? <increased> Has "how
much you owe the bank" increased or decreased? <decreased>