Handout: Chapter 11 Quiz Topics
Discharges
Learning Goals: Understand how electrical discharges occur.
Success Criteria: You can describe examples of electrical discharges and explain how they occur.
This is the final topic from this week that will be on the quiz: discharges. When a lot of charges build up, they can jump from one object to another.
Discharges: The rapid transfer of electrons from one object to another.
Examples: being shocked by a doorknob, lightning, tasers, unplugging outlets.
Here are some amazing photos of lightning storms:
Do you think lightning moves up from the Earth to the clouds or down from the clouds to the Earth? The answer is a little of both. Sometimes lightning even goes from clouds to clouds.
Here are some videos of electric discharges.
WARNING: All of these are incredible dangerous situations! Always be cautious around electrical power sources.
- 500 000 Volt Line
Opened: http://www.youtube.com/watch?v=vqgNrj6oEdc
- Outlet Sparks
Test: http://www.reelefx.com/index.php?c=effect.view&id=189
- Tree branch on
power line: https://www.youtube.com/watch?v=g4ph-h7l_aM
https://www.youtube.com/watch?v=ZIuHbQSPjEA - Like Mike Trailer: http://www.youtube.com/watch?v=llPcBWI_EUE
The movie "Like Mike" makes it look like you get magical powers from being shocked. In real life, you would probably die. Again, I repeat, be extremely cautious around electrical power sources!
Next we worked on some questions regarding electrostatic applications. These questions will help prepare you for the quiz.
Handout: Electrostatic Application Questions
Homework: Complete the handout.
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