Download Sc 9 Electricity Review Booklet

Science 9
Name: ___________________
Electrical Principles and Technology Unit Review Booklet
1. What would happen between the following combinations of atoms?
a. + and + atoms______________________________________________________
b. - and – atoms______________________________________________________
c. + and – atoms______________________________________________________
d. N and +atoms______________________________________________________
e. N and - atoms______________________________________________________
2. Explain the difference between Static Electricity and Current Electricity.
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3. What is voltage?
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4. Describe safety precautions you should be aware of when working with electricity.
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5. How is electrical energy produced from chemicals?
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6. Describe the differences between a ‘dry cell’ and a ‘wet cell’.
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7. How does an electrochemical cell work?
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8. What is electrochemistry and what are applications (uses) of it?
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9. What is a conductor?
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Science 9
Name: ___________________
10. What is an insulator?
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11. What is resistance?
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12. What is current?
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13. What units are resistance, voltage and current measured in?
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14. What is Ohm’s Law?
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15. What devices are used to measure resistance, voltage and current?
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16. What is the difference between a series circuit and a parallel circuit? Know how to draw circuits
and recognize errors in circuit drawings.
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17. What are some circuit safety features and how do they work?
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Science 9
Name: ___________________
18. Identify or illustrate the electrical circuit component or symbol in the table.
19. What is the function or other name (if applicable) of each the previous circuit components?
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20. What are the four most common forms of energy?
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21. How is thermal energy transformed into electrical energy?
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22. How is electrical energy transformed into mechanical energy?
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Science 9
Name: ___________________
23. What is power and how is it calculated?
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24. What is energy and how is it calculated? What are the units of energy?
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25. What are the main parts of a motor and what are their functions?
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26. How can efficiency be calculated?
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27. How can efficiency be improved?
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28. Describe alternative sources of energy.
a. Fossil fuels – _____________________________________________________________
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b. _____________ - _________________________________________________________
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c. _____________ - _________________________________________________________
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d. _____________ - _________________________________________________________
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e. _____________- _________________________________________________________
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29. What is the difference between renewable and non-renewable energy sources?
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Science 9
Name: ___________________
30. What harmful by-products result from electrical generation and how do they affect the
environment?
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31. How can electrical energy be conserved?
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32. What does sustainability mean?
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