Activity 1.4 to measure wind speed and wind direction.Trial.1. cut paper into a circle, about 1 in 4 of the 5 cm heels and dragging the paper from the Center is divided into sections. Each section evenly Write the number of the image, and then apply it to stick with wire or wooden bars.2. cut the paper kite is a rectangle 1 cm X 10 cm hole at the end of one side with a thread, and then bind the ends of the sticks of wood on number 1. The sample image.3. use the device measured wind speed and wind direction, the wind speed measurements to devise more assuming that non-wooden titkradat, parallel with the floor and the device to point in the direction that makes the paper kite move toward a direction which is measuring the wind blows came Ta. Note the paper kite mobile level against the number on the paper if the numbers show a high wind speed. 4. bring the device to measure wind speed and wind direction at a wind speed measuring devise more individual direction wind areas in the school.The result, we try When the wind blows the paper glasses to move.Summary The wind is rather that of a moving direction depending on the temperature difference.
การแปล กรุณารอสักครู่..