LIVE INTERACTIVE LEARNING @ YOUR DESKTOP Center of Mass and Center of Pressure: Engineering a Stable Rocket Presented by: Marti Phipps April 23, 2013 7:30 p.m. 9:00 p.m. Eastern time 1
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Introducing today s presenter Marti Phipps NASA Explorer Schools Education Specialist Jet Propulsion Laboratory Pasadena, CA 4
From the Rockets Educator Guide 5
GRADE LEVEL 4-12 6
Are you a participant of NASA Explorer Schools? Yes No
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Classroom videos Presentation slides Links to NASA sites Related activities 9
What are you hoping to get out of tonight s web seminar? 1. 2. 3. Type your thoughts on the screen.
Outline The NASA Connection Navigating the Activity Building a Rocket and a Launcher STEM Concepts Additional Resources 11
Let s Pause for Questions Please type your questions in the chat! 12
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Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 20
Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 21
Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 22
Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 23
A Pictorial History 24
To Current Day and Beyond 25
26 Applying Newton s Laws
Teacher Pages 27
Next Generation Science HS.PS-FM Forces and Motion HS-ETS-ED Engineering Design HS-ETS-ETSS Standards Links Among Engineering, Technology, Science, and Society 28
Student Pages 29
Calculating Area 30
Let s Pause for Questions Please type your questions in the chat! 31
LAB SAFETY 32
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34 Minimal cost Easy to assemble and use Parts at plumbing or hardware stores Pop! Rocket Launcher
35 Shopping and Assembly
Assembly 36
What qualifies a successful launch? 37
Let s Pause for Questions Please type your questions in the chat! 38
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40 Design Analyze Results Engineering Design Process Build Record Data Test
weight lift drag thrust Forces on a Rocket 41
center of gravity center of pressure Rocket Stability 42
Finding Center of Gravity For simple shapes: Balance the rocket from a string or on an edge such as your finger or a meter stick x 43
Finding Center of Gravity For more complex shapes: Hang the rocket from some point Drop a plumb line from that point Draw line on rocket along string Repeat from another point Find the point of intersection 44
Finding Center of Pressure Trace the shape of the rocket on cardboard Cut out the shape Determine the balance point x 45
Mathematical Approximation Center of Gravity d n d b d f 46
Mathematical Approximation Center of Pressure d n d b d f 47
Let s Pause for Questions Please type your questions in the chat! 48
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RocketModeler III 50
51 Rocket Wind Tunnel
52 Launch Altitude Tracker
53 Calculating Altitude Additional Explorations
Advanced High-Power Paper Rockets 54
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Thanks to today s presenter! Marti Phipps NASA Explorer Schools Education Specialist Jet Propulsion Laboratory Pasadena, CA 57
Thank you to the sponsor of today s web seminar: 58 This web seminar contains information about programs, products, and services offered by third parties, as well as links to third-party websites. The presence of a listing or such information does not constitute an endorsement by NSTA of a particular company or organization, or its programs, products, or services.
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