I need help filling in the blanks problems 5-15

5) represents Electrical Charge and is measured in 6) A valence electron that leaves an atom forms a 7) Potential difference between two points is referred to as 8) schematic symbol. convert chemical energy into electrical energy and provide the 9) DC batteries hooked up in results in voltages adding. 10) DC batteries hooked up in results in providing more current capacity. 11). convert mechanical energy into electrical energy. 12)The rate of flow of charge is also called 13) are rated in ohms and their power ratings. 14). resistors are used when higher power ratings are needed. 15) Complete the definition of a Rheostat and provide the schematic symbol