Across
- 2. These are used to show components and connections clearly in circuit drawings
- 5. For any given voltage, current ________________ if you add resistance
- 6. If you increase the voltage in a circuit, the current also _____________
- 7. Usually the best method for turning electricity on and off in a circuit
- 8. Also called Potential Difference
- 10. To prevent heat loss you should add
- 14. Using resources at a rate that can be maintained indefinitely
- 17. Another name for curcuit drawings
- 18. There is only one pathway for the current, if this pathway is interrupted the whole circuit cannot function
- 19. The resistance is measured in _______
- 22. Is the rate at which a device converts energy
- 24. Type of cell that produce electricity from chemical reactions that cannot be reversed
- 25. Used in pacemakers
- 26. These attract each other
- 29. Current does not flow easily through these
- 32. Current that flows in only one direction. Example is a battery
- 34. Type of resource that cannot be replaced as it is used up
- 36. Coverts Electrical energy to Mechanical
- 39. Heat from the Earth's core
- 40. Does not flow but rather it may jump from one object to another in the form of electrical discharge
- 41. Ratio of useful energy that a device produces verses the amount of energy that went into the electrical device
- 42. Measurement for the rate which an electrical current flows
Down
- 1. Measure electric current
- 3. Can be used to: control the amount of current in a circuit, produce light, produce heat
- 4. Contain a thin piece of metal that is specially designed to melt if too much current passes through it
- 9. Current that flows back and forth 60 times per second
- 11. Used to remove impurities from metals
- 12. Commonly used unit of electrical energy, equal to a power consumption of 1000 W for one hour
- 13. Connecting cells together creates these
- 15. These have no resistance to electron flow
- 16. Substances that allow their electrons to flow when electricity is applied
- 20. Power produced by capturing the energy of falling water
- 21. Have a separate current path for each section
- 23. These have a wire that triggers a spring mechanism that turns the switch off
- 25. Coating a cheaper metal with a thin layer of silver of gold, often done to protect metals from corrosion
- 27. The easiest way to increase efficiency is to decrease
- 28. Rechargeable cells are known as this type of cell
- 30. Several different measuring circuits mounted in the same case
- 31. Allows you to change the amount of resistance in a circuit by turning/ pushing on a switch
- 33. Device that concerts electrical energy to another form of energy
- 35. Ability to do work
- 37. Name for garbage that decomposes and produces combustible gases that can be used as fuel
- 38. Energy cannot be ________ or destroyed only transformed from one form to another