1. CHAPTER 1
ELECTRICITY

2. The amount of charge flowing past a point in a given time
CURRENT

3. The closed path for electrons to flow
CIRCUIT

4. The unit used to measure current
AMPS

5. A ________ _________ protects your home from circuit overloads
Circuit breaker

6. List 3 ways to produce static electricity
FRICTION
CONDUCTION
INDUCTION

7. Like charges will _______ each other and opposites will _____________
REPEL
ATTRACT

8. The electricity from the outlets is ______________ current and has a voltage of _____
ALTERNATING
120 VOLTS

9. The largest example of electric discharge
LIGHTNING!

10. _________ allow electrons to flow freely through them.
CONDUCTORS

11. Heating elements contain metals of ____________ resistance
HIGH!!

12. _________ can hold a static charge but do not allow the flow of electrons.
INSULATORS

13. Copper is used in electrical wiring because
It is a conductor with LOW resistance.

14. In this circuit, ________ energy is converted to electrical energy.
CHEMICAL

15. Increasing resistance will ___________ the current.
DECREASE

16. List 4 ways to reduce resistance in a conductor.
Shorten the wire
Use a good conductor
Make the wire thicker
Reduce the temperature of the wire

17. If voltage increases, what happens to the current?
IT INCREASES!!

18. In the case of Lightning, _________ energy is converted to heat, light and sound
ELECTRICAL

19. Electric power is measured in
WATTS OR
KILOWATTS

20. Potential difference is measured in
VOLTS

21. The source of potential difference in a circuit
BATTERY

22. If the voltage in a circuit is 20 and the resistance is 5, what is the current in amps?

23. Why in a parallel circuit do the bulbs stay lit even if one goes out?
Each has its own path for electrons to flow

24. Describe the flow of energy through a circuit.
Chemical reactions in electrolyte push electrons out of the battery, through the conductor, to the load and back to the battery.

25. How does the VanDegraaf generator work??

26. Why can you make a balloon stick to a wall?