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This journal entry explores concepts of speed and motion, providing engaging activities and thought-provoking questions. Students calculate the speed of an airplane traveling from Minneapolis to New York and analyze a train's journey distance and time. They measure their own walking and running speeds over 10 meters, promoting hands-on learning. Key vocabulary terms include speed, velocity, motion, and acceleration. Activities such as group measurements and graphing personal data allow students to understand motion's dynamics in everyday scenarios.
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Journal Question • 03 Oct 2012, P. 26 • How fast is an airplane traveling if it takes 2.5 hours to go from Minneapolis to New York (1200 miles). • Agenda • Measuring and recording speed data. • How fast do you walk/run 10 meters?
Journal Question • 04 Oct 2012, P. 27 • A train is moving at 50 miles per hour. • How many miles did it travel in 2 hours? • The train needs to travels 500 miles. How long will it take to travel this distance? • Remember: Speed = Distance divided by time
Journal Question • 05 Oct 2012, P. 27 • Wendy is riding her bicycle downhill at 15 miles per hour. What is her speed? What is her velocity? • How fast is Wendy going if she traveled 3 miles in a half of an hour? • Show your work.
Measuring Speed • Make a table in your science notebook, P. 28. • You will be working in groups of 4.
Measuring Speed • Measure out 10 meters. • Mark start and end with a small piece of colored tape. • Start the timer. • Walk heel-to-toe for the entire distance. • Stop timer at the end. • Record your data.
Agenda • Complete 10 meter walk and run (hallway right outside of our classroom). • Complete the directed reading assignment. • Begin graphing your walk and run data.
Journal Question • 08 Oct 2012, P. 29-30 • Sharon wants to meet her friends for lunch on the far side of a lake at noon (12:00). She must travel 6 miles across the lake. If she leaves at 10:00 AM, how fast must she travel to make it to lunch on time? • Speed = Distance/Time
Vocabulary • Speed – measurement of distance traveled in a period of time (mi/hr, m/s) • Velocity – speed with direction • Motion – a change in an object’s position over time relative to a reference point • Reference point – a non-moving or stationary object • Acceleration - measurement of how fast velocity changes (mi/hr2, m/s2)
Speed Graph for 10 m walk/run data 12 10 8 Distance traveled in meters 6 4 2 0 26 2 32 22 30 24 16 18 28 4 6 8 12 14 10 20 Time in seconds