Wind Power (Science)

Wind Power

By Jaren (Help for Ibrahim)

Measuring weather.

Definitions:

1.  Anemometer: Measuring Wind Speed
2. Beaufort wind scale: The number of spins

MATERIALs 

1. 4 dishes

2. 2 sticks

3. Sellotape

4. Pin

5. Pencil

STEPS

1.   Tape your four dishes on your two sticks.
2.   Tape your two sticks together.
3.   Get your pencil.
4.   Put your pin on the tape on the middle of the sticks.
5.   Put your pin on the pencil's rubber

Groups size: 5 
Roles: 

1. Record the spins in fifteen seconds

2. Writing the number of spins

3. Holding the Anemometer.

4. Writing the steps

5. Writing the materials.

• 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	1
2.	Old J Block Site	1
3.	Grass Hill in the quad	1
4.	Tennis Court Gate	2

CONCLUSION:

1. According to the number of spins, we got only one spin from the field.

2. Old J Block site also had one spin. 

3. Grass Hill had one spin.

4. Tennis Court Gate has the most spins during our experience.

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