Weather Instruments and Data Interpretation

The video tutorial covers the measurement of various weather factors, including temperature, rainfall, wind speed and direction, and humidity. It explains the use of instruments like thermometers, rain gauges, wind vanes, anemometers, and hygrometers. The tutorial also includes practical activities for making simple versions of these instruments, emphasizing the importance of regular data collection for accurate weather analysis.

What are the factors affecting weather discussed in the introduction?

• Temperature, pressure, humidity, and sunlight

• Temperature, humidity, rainfall, wind speed, and direction

• Rainfall, sunlight, pressure, and humidity

• Wind speed, pressure, sunlight, and temperature

Why is it important to record temperature data continuously?

• To make the data more complex

• To reduce the cost of data collection

• To increase the accuracy of weather predictions

• To save time

What is the purpose of using a graph to represent temperature data?

• To make the data look more colorful

• To easily and quickly understand the information

• To confuse the reader

• To hide the actual data

What is a rain gauge used for?

• Measuring rainfall

• Measuring humidity

• Measuring wind speed

• Measuring temperature

Which instrument is used to measure the direction of the wind?

• Rain gauge

• Anemometer

• Thermometer

• Wind vane

What is the primary function of a wind vane?

• To measure wind speed

• To predict rainfall

• To measure humidity

• To determine wind direction

Why is one half of the anemometer's ball a different color?

• To measure temperature

• To balance the anemometer

• To help count the number of rotations

• To make it more visually appealing

How is wind speed calculated using an anemometer?

• By counting the number of rotations per minute

• By measuring the height of the anemometer

• By observing the color change of the balls

• By measuring the diameter of the balls

What material is used in a simple hygrometer to detect humidity changes?

• A strand of hair

• A metal wire

• A plastic strip

• A piece of string

How does the length of the hair strand in a hygrometer change with humidity?

• It increases with higher humidity

• It decreases with higher humidity

• It changes color with humidity

• It remains constant