Monday, August 31, 2015

Homework for Monday

Persuse Electronic Symbol page

Read through Chapter 2 in Exploring Arduino pp19-39

Read pages 1-36 in Tha Manga Giude to Electricity and post questions to blog.
Calculate how much it costs to use five common appliances that you use every day in your home for 24 hours. Please let me know the applicance, its wattage, amps and volts of each appliance and how you calculated cost. You will need to go to GRU or look at one of your electric bills.

My 2 roommates and I used 1301 kwh as a household in the month of July 2015.

This number (kwh) is obtained by multiplying power and usage time. 
1200w x 2hrs = 2400wh = 2.4 kwh
if 1kwh costs 20 yen, running the tea kettle for 2 hours (2.4kwh) will cost 28 yen.

1. appliance, wattage, amps and volts
2. appliance, wattage, amps, and volts
3. appliance, wattage, amps, and volts
4. appliance, wattage, amps, and volts
5. appliance, wattage, amps, and volts

How many of those appliances can you plug into one outlet without tripping a breaker? Please do this mathematically rather than through direct experience.

Take a break and watch this 1:30 video on electricity. 
Principles of Electricity
http://www.youtube.com/watch?v=sQ9G2OL9ERo 

What is the directional relationship between charge and current?

This is known as Ohm's Law.

DO this experiment or another of your choice if you would like to experience static electricy. http://www.sciencebob.com/experiments/staticroll.php Please document visually on blog 

I had trouble figuring out which experiment you wanted us to do since the link was not working.  I found an experiment using static electricity to bend water and one using static electricity to make a dancing ghost.  

No comments:

Post a Comment