Hi there!
Voltage in a series can be expressed by the following:

In words, the total voltage is equal to the sum of the individual voltage drops in a SERIES circuit.
We can solve for the total voltage:

Not exactly the best way to describe it but, it is used to calculate resistance of a lever as in the use of a pry bar or pulley. Technology used to increase output with little input.
Bigger is the correct answer. the faster an igneous rock cools the bigger the bigger the crystal size will be
If you're moving, then you have kinetic energy.
If you're not at the bottom yet, then you still have
some potential energy left.