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1. What creates static electricity? |
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Rubbing certain materials together. |
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2. What does a negative electrical charge symbol look like? |
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3. What does a positive electrical charge symbol look like? |
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4. What kinds of material is needed for electrical energy to move through? |
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5. Name examples of a conductor. |
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6. What type of material does not conduct electricity well? |
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7. Name some examples of an insulator. |
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"Rubber, plastic, and wood" |
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8. Why will energy pass more or less easily through conducting materials? |
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Definition
Because of the material resistance |
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9. What is the discharge of static electricity in the atmosphere called? |
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10. What type of energy can electrical energy be transformed into? |
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Definition
"Heat, light, or mechanical energy" |
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11. What creates an electrical current (electricity)? |
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A continuous flow of negative charges (electrons). |
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12. What is the pathway taken by an electrical current called? |
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13. What type of circuit allows the movement of electrical energy? |
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14. What type of circuit prevents the movement of electrical energy? |
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15. Dry cell batteries use the symbol ""+"" and ""-+"", what does ""-"" represent?" |
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16. How many pathways are there in a series circuit? |
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17. What is a series circuit? |
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Definition
"A circuit where each bulb is connected to the next so that if any bulb so that if any bulb closer to the battery goes out, all the bulbs behind it go out." |
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18. How many pathways are there in a parallel circuit? |
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19. What is a parallel circuit? |
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"A circuit where each bulb is directly connected to the battery so that if one bulb goes out, all the remaining bulbs still shine." |
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20. Describe the lines of force from the poles of a magnet. |
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Definition
They arch to create a magnetic force. |
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21. What is the space around a magnet where magnetism acts? |
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22. What creates a magnetic field? |
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An electrical current flowing through a wire. |
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23. What creates a an electrical current? |
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24. What is an example of a simple electromagnet? |
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Definition
Connect one end of a wire to a battery. Wrap the wire around a nail. Connect the other end to the battery. |
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25. How are electromagnets different from permanent magnets? |
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Definition
Electromagnets can be turned on and off. |
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26. What happens to an electromagnet when you wrap the wire even more times around the nail? |
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Definition
You make the electromagnet stronger |
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27. What kind of metals attract other metals to each other? |
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Definition
"Iron-bearing, nickel, and cobalt" |
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28. What did Ben Franklin study by attaching a key to a kite and flying it in a storm? |
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29. What scientist discovered how to change electrical energy into light energy? |
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30. What American scientist found ways to use electrical energy for light and recording sound? |
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31. What was Michael Faraday known for? |
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He discovered that a magnetic field could cause electrical current to flow. |
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32. Who built the first generator which became a basis for our contemporary generators built today? |
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