February 11, 2010 (#102)Need: Books/Notebooks

Continue to Build a better understanding of Electric and Magnetic Field behaviors

Connection between Magnetic Fields and the Earth as well as Technology

Describe the relationships among the three components of electricity.

KIDWIND Student tested Wind Turbine

Variables-Blade Size-Blade Shape-Blade Mass-Number of Blades-Blade Pitch-Cut in Speed

http://gizmodo.com/360117/exploding-wind-turbine-video-is-destruction-delicious

Please read over your article and comment/summarize your article on the paper handed out in class

Electricity Use TURN IN Watt’s the Matter with you

(Finish with Stairs) TURN IN Motor worksheet questions TURN IN Energy Audit Worksheet. Extra Credit Construct one for Vacation

Home N.I.M.B.Y. Research an Electronic Device Continue Who killed the electric car? Work on Building Layer For those done, National Geographic Article. Read, Review,

Summarize, Comment

Watt’s the Matter with you (Finish with Stairs)

Worksheet out. Let’s finish the backside of this worksheet

Motor worksheet TURN IN questions

Energy Audit Worksheet. Construct one for Vacation Home▪ Imagine you have been hired to audit the energy use of a vacation home in either Vermont (Winter Home) or Cape Cod (Summer Home)▪ Come up with ideas on how the owners can same money and energy▪ Creatively construct a scoring sheet.▪You may use the audit from Friday as a guide

Horizontal Axis-Designed to interact with more wind surface space-Require much larger tracts of land-Act to push wind around them-Better in the ocean

Vertical Axis-Designed to fit into smaller vertical spaces

-Does not require large spans of land

-Some even try to remove friction by using maglev

Not In My Back Yard Courtesy of our interest in property,

many individuals do not like the idea of having their property affected by developing technologies.

Would you rather a nuclear power plant or a wind turbine? How about neither?

Let us seek out articles and news reports concerning the debate over these technologies

http://news10now.com/cny-news-1013-content/all_news/central_new_york/494038/opposition-against-galloo-island-wind-farm-grows

Ted Kennedy

Wales against Wind Turbines

Wind Turbine Complaints

Wind Turbine Complaint Farse

What are some of the complaints that people use as evidence against?

What are some of the evidences that contradict these complaints?

Who is affected by these complaints or evidence?

Is there any affect to the natural environment?

Are there businesses related to these issues?

To be filled in by students…

Please check out the teams website

http://homeworkteam71.wikispaces.com/

Finish your Watt’s WorksheetAnd if you are capable, continue

working on your research assignment

Extension material continues after this slide

http://www.metacafe.com/watch/1546614/how_to_make_an_electric_motor/

How a motor works

Calculating Power (Watts)You need to either have Watts or

Voltage (volts) and Current (amps) P = power in watts

E = voltage in voltsI = current in ampsR = resistance in ohms

Using these equations to solve P = E2/R

P = I2 x RP = E x I

P = E2/R P = I2 x R P = E x I

Take the now calculated power, and convert it into KW (usually means move the decimal point left 3 places).

Multiply this number by 1 hour, and then multiply it by the cost per-KWH (.11 cents)

Ex.Joey’s TV 180W (0.180kw x 1 hr) = 0.180kwh x $0.11=

$0.0198Run the same TV for 5hrs/day for 1 month?

(30days)$2.97

(3 dollars for one TV, how many TVs in your

house?)

Run the same TV for 5hrs/day for 1 month? (30days)

$2.97

(3 dollars for one TV, how many TVs in your house?)

Try to figure out how much it costs to run your tv’s in your house? Enter it in the clickers

Please now go and add up all of your appliances for your homework and discuss this number with your neighbor

Are there any noticeable differences b/n each other?

Any possible reasons why there are differences or similarities?

Prepare a statement explaining any discoveries

Please brainstorm on your own how we use electricity for work?

Come up with some examples in your mind and if need be write them out in your notes.

We will not head to the staircase around the corner and time ourselves in figuring out how much power we as humans can create.

Make a Styrofoam plate speakerMake a speaker with a balloon

http://www.wonderhowto.com/how-to/video/how-to-make-a-speaker-from-a-balloon-magnet-and-wire-178538/