Across
- 2. is the attraction of two objects with mass
- 4. this is produces as static discharges from clouds collide with particles in the atmosphere
- 9. this part of a cloud accumulates negative charges
- 10. charging by ____occurs when a charged object nears an neutral object
- 12. positively charged particles that make up atoms
- 13. a common type of insulator material
- 16. these are held together by electrical forces
- 17. atoms are normally this
- 18. a material that electrons cannot easily move through
- 21. electrons can be _____ from object to object
- 22. objects with more electrons than protons are this charge
- 26. these charges attract each other
- 27. do not hold onto their electrons tightly
- 28. the _____ charged objects are the greater the force it produces
- 30. insulators prevent _____ to buildings and people
- 31. same charges do this
- 32. lightning is a large static _____
- 33. this is caused by excess electric charge on an object
Down
- 1. different charges do this
- 3. this occurs when charges from lightning can contact the Earth
- 5. electric forces are ____ than gravitational forces
- 6. negatively charged particles that make up atoms
- 7. objects with less electrons than protons are this charge
- 8. these charges repel each other
- 11. this flooring tends to transfer electrons to shoes
- 14. the greater this is on an object the greater a force is produced
- 15. a material that electrons can easily move through
- 17. hold onto their electrons tightly
- 19. this is produced as the heat from lightning expands nearby air
- 20. types of substance that is a good conductor
- 23. numbers of + & - charges are ____, which makes an object neutral
- 24. this surrounds every electric charge
- 25. charging by ____ occurs when objects touch/rub together
- 27. as this increases gravity also increases
- 29. electric charges exert these