Hurumanu - Wind Power

Hurumanu - Wind Power

Extreme weather

Measuring weather.

Definitions:

1.  Anemometer:
2. Beaufort wind scale:

MATERIALS

1. 4 dishes
2. 2 sticks
3. sellotape 
4.   pin
5.   pencil
6.   
7.   

STEPS

1.   Get to sicks and but them to giver with tape.
2.   Put 2 dishes on each side of the stick with one facing one and facing the other put them to giver with tape.
3.   Pin it to the ruber on the pencil.
4.   Them go out side with your Anemometer.
5.   
6. 
   

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 time keeper 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.	Middle Of Field	11
2.	Front of tennis gate	0
3.	Old j block	0
4.	Hill	1

CONCLUSION:

The field was the wind easy part because it is the most open part of the school it spins 11 times .

The tennis gate did not spin.

 Old J block did not spin .

The  hill spins one times 

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 direction of wind smoke drift, but not by wind vanes.	Light
2	6-12	40	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 loose 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.

	Spins per minute	Wind speed ( kph)	Beaufort Scale
Field	44	2-5	3
Old J Block site	0	0-1	0
Grass hill	0	0-1	0
Tennis Court Gate	4	0-2	0