Post on 18-Jan-2018
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(Mon) What is the one major change in electrical and electronic devices that happened because transistors replaced large vacuum tubes (5 min / 5 pts)
(Mon) What is the one major change in electrical and electronic devices that happened because transistors replaced large vacuum tubes (5 min / 5 pts)
Modern radios, calculators and computers are much smaller
(Tue) Most metals and some liquids are good at conducting electrical current. Plasmas also can conduct electricity. Why can a plasma conduct electricity? (5 min, 4 pts)
(Tue) Most metals and some liquids are good at conducting electrical current. Plasmas also can conduct electricity. Why can a plasma conduct electricity? (5 min, 4 pts)
Plasmas are made of positive ions and free electrons that can easily conduct electricity
(Wed) How can changing magnetic fields make electrical currents in electrical conductors? (2 steps) (5 min, 4 pts)
NS
(Wed) How can changing magnetic fields make electrical currents in electrical conductors? (2 steps) (5 min, 4 pts)
Changing magnetic fields make electric fields or voltages
Electric fields or voltages make electrical currents in conductors
NS
(Thu) If you wanted to measure an electrical potential (voltage) and an electrical current (amps), what 2 pieces of equipment would you use? (5 min / 4 pts)
(Thu) If you wanted to measure an electrical potential (voltage) and an electrical current (amps), what 2 pieces of equipment would you use? (5 min / 4 pts)
Voltage:
Current:
Voltmeter
Ammeter
(Fri) Entropy is a measure of disorder in a system. If you had a glass of milk and a glass of soda and poured them into a single larger glass, would the final mixture have more or less order? Did the entropy of these two liquids increase or decrease? (5 min / 4 pts)
(Fri) Entropy is a measure of disorder in a system. If you had a glass of milk and a glass of soda and poured them into a single larger glass, would the final mixture have more or less order? Did the entropy of these two liquids increase or decrease? (5 min / 4 pts)
Order:
Entropy:
Less order
Increases
End of Week Procedures
1.Add up all the points you got this week
2.Put the total number of points at the top of your page (out of 21 points)
3.List any dates you were absent or tardy (and why)
4.Make sure your name and period # is on the top of the page
5.Turn in your papers