Physical Science Chapter 6 Review

3. batteries provide ______________ current
5. an object with the same number of positive and negative charges is _________
6. force that causes electricity charges to flow
9. current and electrons flow in ___________ directions
11. _____________ can be neither created nor destroyed
13. connecting a charged object to the earth
15. circuit where current only has one possible path
16. three considerations for a better battery are energy density, cost, and ___________
18. material that enables charges to move from one electrode to another in a battery
21. SI unit for current (plural)
22. flow of electric charge
25. glass, plastic, and rubber are examples of _______
26. Westinghouse and __________ developed a practical AC generator
30. device that can measure voltage, current, and resistance
31. atoms are held together by ________________ between protons and electrons
34. fuses and circuit breakers prevent wires from _______________
35. ion used in most smartphone batteries
36. depends on voltage difference and current

1. wall outlets provide _______________ current
2. electric charges can exert forces on each other without doing this
4. the build up of excess electric charge
7. a device that can detect electric charge
8. electrons move easily though these materials
10. circuit where devices can be turned off separately
12. unit that measures the tendency for a material to resist the flow of electrons
14. an electric ______________ surrounds every electric charge
17. Opposite charges do this
19. most common wet cell battery in use
20. measurement of electric power
23. transferring charge by rubbing two objects together is charging by ____________
24. appliances that produce heat generally use ________ electric power than those
27. closed path that electric current follows
28. the earliest battery was called a voltaic _________
29. Like charges do this
32. energy can be _______________ from one form to another
33. power companies bill for electricity using kW_______