# Apparent Wind and True Wind Speed Group 6.A1B

AffordableMaroon
·

Start Quiz

Study Flashcards

## 12 Questions

### What is the formula for calculating True Wind Speed?

TWS = √(OS² + AWS² - 2 × OS × AWS × cos(RWA))

11.6 knots

### What is the formula for calculating True Wind Direction?

TWD = √(AWS² - TWS² - OS² ÷ 2 × TWS × OS)

40°

-0.55

236°

### What is the purpose of a barometer?

Measure air pressure

True wind speed

### What is the role of an anemometer?

Measure wind speed

Anemometer

### What does True Wind Angle represent?

Angle of the true wind direction relative to observer's heading

### What is the significance of nitrogen in the atmosphere?

It is a component of the blanket of gases surrounding Earth

## Study Notes

### Calculating Wind Speed and Direction

• The formula for calculating True Wind Speed is not specified in the text.
• The value of the True Wind Speed calculated in the text is not provided.

### Wind Direction Calculation

• The formula for calculating True Wind Direction is not specified in the text.
• The value of the Relative Wind Angle provided in the text is not specified.
• The result of the inverse cosine function applied in the calculation of True Wind Direction is not provided.
• After calculating True Wind Direction, the final direction obtained is not specified.

### Atmospheric Instruments

• A barometer measures atmospheric pressure.
• Ground wind is another term for wind speed measured at the Earth's surface.
• An anemometer measures wind speed.
• An anemometer measures the speed of the wind felt by an observer.

### Wind Angle and Atmospheric Composition

• True Wind Angle represents the direction of the wind in relation to the observer's direction of motion.
• Nitrogen is a significant component of the Earth's atmosphere, making up approximately 78% of the atmosphere.

Learn about apparent wind speed and true wind speed, as well as the atmosphere and how it is held near Earth's surface. Discover how a barometer is used to measure air pressure and the composition of gases in the atmosphere.

## Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

## More Quizzes Like This

Use Quizgecko on...
Browser
Information:
Success:
Error: