Wind Power

Extreme weather

Measuring weather.

Definitions:

1.  Anemometer: 
2. Beaufort wind scale:

MATERIALS

1. 4 Dishes  
2.   2 Sticks
3.   Tape
4.   Pin
5.   Pencil

STEPS

1.   Grab all the materials.
2.   First Stick the 4 dishes to each side of the stick. Make sure the dishes are opposite sides.
3.   Secure with tape.
4. Stick the middle of the sticks together, make sure it is secured tight.  
5. Stick a pin through the tape and into the top pencil. Make sure the tape isn't on the pencil so it could spin right. 
6. Experiment with the wind. 

Groups size: 5 
Roles:

• Timekeeper
• Counter
• Recorder
• Anemometer Manager
• Wind Manager

1. Mount the anemometer in a place that has full access to the wind from all directions.
2. When the timekeeper says "Go", the counter in each group will count how many times the marked cup passes them in one minute and write it down.
3. Repeat the above step four (4) times and record the number of spins on the chart.

FINDINGS

• Record how many times it spins and record it in the table below.

• You will need to time them and count the number of spins.

	Place name on school grounds	Number of Spins in 15 seconds
1.	Field	11
2.	Old J Block Site	0
3.	Grass Hill Quad	0
4.	Tennis Court Gate	1

CONCLUSION:

The field was the windiest part of the school. It is because the field is more exposed. The old J block site and the grass hill quad didn't blow any wind when we were on it. The tennis court gate somehow got 1 we could've gotten two but the Anemometer was going one way then the other way. So, in conclusion, the field is the windiest part.

• USING A4 PAPER DRAW YOUR RESULTS ON A GRAPH.
• TAKE A PICTURE OF THE GRAPH AND UPLOAD IT TO YOUR BLOG

WHICH IS THE WINDEST AREA AND WHY? - The field is the windiest area because it is more open and isn't surrounded by a lot of trees. 

WHICH IS THE CALMEST AREA AND WHY? - The calmest area is the tennis court gate because it was surrounded by trees.

WHERE IS THE BEST PLACE ON LAND TO BUILD A WINDMILL? - In an open space where lots of wind would pass through. 

Wind

Beaufort Wind Scale

Beaufort Force	Wind Speed (KPH)	Spins	Indicators	Terms Used in NWS Forecasts
0	0-2	0	Calm; smoke rises vertically.	Calm
1	2-5	10	Shown by the direction of wind smoke drift, but not by wind vanes.	Light
2	6-12	40	The wind felt on face, leaves rustle; ordinary vanes moved by wind.	Light
3	13-20	80	Leaves and small twigs in constant motion; wind extends light flag.	Gentle
4	21-29	130	Raises dust and lose paper; small branches are moved.	Moderate
5	30-39	190	Small trees in leaf begin to sway; crested wavelets form on inland waters.	Fresh
6	40-50	250	Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.	Strong
7	51-61	320	Whole trees in motion; inconvenience felt walking against the wind.	Strong
8	62-74	390	Breaks twigs off trees; generally impedes progress.	Gale
9	75-87	470	Slight structural damage.	Gale
10	88-101	550	Seldom experienced inland; trees uprooted; considerable structural damage occurs.	Whole gale
11	102-116	640	Very rarely experienced inland; accompanied by widespread damage.	Whole gale
12	117 or more	730+	Very rarely experienced; accompanied by widespread damage.	Hurricane

	Spins per minute	Wind speed ( kph)	Beaufort Scale
Field	44	13-20	3
Old J Block site	0	0-2	0
Grass hill	0	0-2	0
Tennis Court Gate	4	0-2	0

The Boy who Harnessed the Wind: 1:36

Wind Farm construction