Hurumanu - Wind Power

Measuring weather.

Definitions:

1.  Anemometer:
2. Beaufort wind scale:

MATERIALS

1. sellotape 
2.   pencil
3.   pin
4.   2x sticks
5.   4x cups
6.                                                     1x sticky note

STEPS

1. sellotape the sticks to the cups.  
2.   sellotape the sticks together to make a cross.
3.   pin the cross to the rubber on the pencil.
4.   put your name on the sticky note. 
5.   put the sticky note on the pencil. 
6. and show the teacher.
7. put it on the trey.

FINDINGS

	Place name on school grounds	Number of Spins in 15 seconds
1.	Field	20
2.	Old J Block site	15
3.	Grass hill in quad	10
4.	Tennis Court gate	3

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

WHICH IS THE WINDIEST AREA AND WHY?

WHICH IS THE CALMEST AREA AND WHY?

WHERE IS THE BEST PLACE ON LAND TO BUILD A WINDMILL?

CONCLUSION:

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.	Hurricane

Based on your findings what was the Wind Speed and the Beaufort Wind Force for each area.

	Spins per minute	Wind speed ( kph)	Beaufort Scale
Field	80	13-20	3
Old J Block site	60	12-14	2
Grass hill	40	6-12	2
Tennis Court Gate	12	2-5	1

On the filed there were 80 spins per minute and the wind speed was 13-20 kph and the Beaufort scale was 3.

At the old j block there were 60 spine per minute the wind speed was 12-14 kph and the the Beaufort scale was 2.

On the grass hill there were 40 spins per minute and the wind speed was 6-12 and the Beaufort scale was 2.

At the tennis court gate there were 12 spins per minute and the wind speed was 2-5 kph and the the Beaufort scale was 1.