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Electricity and Magnetism

Electricity and Magnetism. Negative charges in an atom are called ___________. electrons. What kind of electricity can be caused by rubbing two materials together?. Static Electricity.

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Electricity and Magnetism

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  1. Electricity and Magnetism

  2. Negative charges in an atom are called ___________. electrons

  3. What kind of electricity can be caused by rubbing two materials together? Static Electricity

  4. When you rub a balloon with a cloth, __________ charges are knocked off the cloth and are collected onto the balloon. This makes the balloon have a __________ charge. negative negative

  5. What is a discharge of static electricity in the atmosphere called? Lightning

  6. Lightning occurs when the ___________ charges in the thundercloud build up and jump to the ____________ charged ground. negative positively

  7. What kind of electricity is caused by a continuous flow of electrons? Current Electricity

  8. What is the path that electricity flows through called? Circuit

  9. A circuit must be _________ to allow the flow of electricity. closed

  10. What can be used to control the flow of electricity? Switch

  11. What do we call materials that allow the flow of electricity? Conductors

  12. What do we call materials that do not allow the flow of electricity? Insulators

  13. What is a poor conductor called? Resistor

  14. Resistors allow electrical energy to be ___________ into other forms of energy. changed

  15. Name three types of energy that electricity can be changed into. Heat, light, and mechanical energy

  16. How many pathways does a series circuit have? One

  17. How many pathways does a parallel circuit have? Two or more

  18. What kind of circuit is it? parallel

  19. What kind of circuit is it? series

  20. What is the area of magnetic force called? Magnetic Field

  21. Electric current creates a _____________ field. magnetic

  22. What do you make if you put together a closed circuit and wrap the wire around an iron bolt? Electromagnet

  23. How can you make an electromagnet stronger? You can wrap the wire around the iron bolt more times.

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