Physics Crossword

1. A type of plastic used in photographic film and overhead transparencies
3. A push or pull exerted on an object
5. forces Forces that have an effect only on objects they touch
6. The unchanged state of a particle or object
9. materials, such as glass, plastics, ceramics and dry wood that do not allow electrons through them
11. An instrument for detecting and measuring electricity
13. Connecting a conductor so the electric charge flows into the Earth
14. negatively charged particles
16. The unit of electric charge

2. Forces that can have an effect on an object without touching it
4. De Graaff Generator A device that uses friction to product a large static charge on a metal dome
7. An abrupt, discontinuous natural electric discharge in the atmosphere
8. Materials that allow electrons to move freely on and through them
10. of Electrostatics Physical laws that state that like charges repel, opposite charges attract and neutral and charged objects attract each other
12. Force A push or pull between charged objects
15. Charge An electric charge that can be collected and held very nearly in place