Across
- 4. allow electrons to move easily metals easily flow through
- 7. the current only has one voltage to flow through
- 8. materials that does not allow energy to move through easily
- 9. applies to charges in the fact that charges cannot be created or destroyed but only transferred.
- 11. un-magnetized iron brought near a magnet becomes magnetized
- 12. the number of protons and electrons are equal
- 13. the tendency for a material to oppose flow of electrons charging electrical energy into thermal and light energy.
- 14. the rate per unit time . in which electrical energy is transferred by an electric circuit. measured in watts
- 15. properties and interaction of magnets
- 16. guard against over heating. contains a piece of metal that sends when it gets to hot. bending causes a switch to flip and open the circuit
- 17. all things have electric charges
- 19. Device used to maintain a voltage difference two types Dry-cell and Wet-cell
Down
- 1. the amount of electrical energy is conducted to another energy form
- 2. connecting an object to earth with a conductor
- 3. a device that increases or decreases voltage of a alternating current
- 5. two or more batteries form current to move through.
- 6. electrons flow through a completed circuit
- 7. the circulation of excess electric charge on an object
- 10. electrons do not flow through circuit.
- 18. the flow of electrons