Physics

3. Charging by ___ requires physical contact between a charging body and a neutral body
6. Measure of the ease at which an electric charge moves through materials
8. Affects all object's quality called the charge
11. Greek word meaning "amber"
13. Branch of physics dealing with electric current, electric and magnetic fields, as well as their interaction
14. Materials that resist the flow of charge
17. The space surrounding a charged body
18. Offers no resistance to the flow of charges
19. Latin word for flow
20. Build-up of electric charge on a surface

1. Anything that pulls with mass
2. Same amount of positive and negative energy
4. Result when two different materials are rubbed together
5. Not as conductive as metals, but are more conductive than insulators
7. Physical occurrence that happens in an object's motion
9. Materials that readily allow the flow of charges through them
10. Measure of the number of field lines passing through a surface
12. When a neutral body is charged without physical contact
15. ___ principle states that each charge will exert a force on another charge as if no other charges are present
16. Amount of charge that is "on" or "carried by" an object