Across
- 2. is caused, or induced, by the relative motion between a wire and a magnetic field.
- 5. Electric charges do not need to be touching to ______ force on each other.
- 7. The electrical force between the two charges will __________ by the square of the change of position.
- 9. If an object has an equal amount of positive and negative charges it is called
- 10. There are ____ types of electric charge positive and negative
- 11. Charged objects with different sign ________ each other
- 12. A device that uses a free-moving magnetic needle to show direction is a:
- 14. A _______ is a path for the electrons to flow from negative terminal to a positive terminal.
- 16. The invisible region around any charged object is an
- 17. The current is in the same direction as the flow of ________ charge
- 18. Charles Coulomb measured the ____________ of electric forces
- 19. Charged objects with the same sign _____ each other
Down
- 1. Which part of the atom is negatively charged?
- 3. Electrical ________ are materials that allow electrons to move freely.
- 4. Electrical __________ are materials that most of the electrons are bound to atom and cannot move freely in material.
- 5. Which kind of magnet carries a current?
- 6. The movement of electrically charged particles is
- 8. The number of positive and negative charges in an atom is usually
- 13. All electric circuits have ______ main parts
- 15. A type of energy fueled by the transfer of electrons from positive to
- 20. Which part of the atom is positively charged?