Hurricane Motion Answer Key GIZMO

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Hurricane Motion Answer Key Vocabulary: air pressure, Coriolis effect, eye, hurricane, knot, meteorologist, precipitation Prior Knowledge Questions (Do these BEFORE using the Gizmo.) [Note: The pur... pose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] A hurricane is a large, rotating tropical storm with wind speeds of at least 74 miles per hour. Since 1990, meteorologists have regularly used satellite images to track hurricanes. 1. The satellite image at right shows Hurricane Katrina just before it hit New Orleans in 2005. Label the hurricane on the image. 2. How do you think meteorologists predicted the arrival of a hurricane before the 1990s? Answers will vary. [Meteorologists used ship reports, air pressure readings, airplane reconnaissance, etc.] Gizmo Warm-up You can use data collected from weather stations to study the characteristics of hurricanes. The Hurricane Motion Gizmo™ has three simulated weather stations. Turn on Show weather station data. Make sure Wind, Cloud cover, and Pressure are all checked. The tails on each station symbol point in the direction the wind is coming from. The flags on the tail indicate wind speed, measured in knots. (One knot is equal to 1.151 mph.) A short line extending from the tail indicates 5 knots of wind. A longer line indicates 10 knots. A triangular flag indicates 50 knots. Add all the flags together to get the wind speed. The number in the station’s upper right is the air pressure, which is measured in millibars (mb). The circle symbol indicates the percentage of cloud cover, as shown in the table at right. Use the information above to complete this table for station A on the Gizmo. Wind speed (knots) Wind from Cloud cover Pressure (mb) 30 knots North 1/8 1023.5 mb [Show More]

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