Center of Mass and Center of Pressure: Engineering a Stable Rocket

Transcription

1 LIVE INTERACTIVE YOUR DESKTOP Center of Mass and Center of Pressure: Engineering a Stable Rocket Presented by: Marti Phipps April 23, :30 p.m. 9:00 p.m. Eastern time 1

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3 NSTA Learning Center 10,600+ resources 3,700+ free! Add to My Library to access at your convenience Community forums Online advisors to assist you Tools to plan and document your learning 3

4 Introducing today s presenter Marti Phipps NASA Explorer Schools Education Specialist Jet Propulsion Laboratory Pasadena, CA 4

5 From the Rockets Educator Guide 5

6 GRADE LEVEL

7 Are you a participant of NASA Explorer Schools? Yes No

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9 Classroom videos Presentation slides Links to NASA sites Related activities 9

10 What are you hoping to get out of tonight s web seminar? Type your thoughts on the screen.

11 Outline The NASA Connection Navigating the Activity Building a Rocket and a Launcher STEM Concepts Additional Resources 11

12 Let s Pause for Questions Please type your questions in the chat! 12

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20 Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 20

21 Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 21

22 Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 22

23 Which civilization is credited with the first recorded use of rocket propulsion? A. Chinese B. Russian C. Greek D. German 23

24 A Pictorial History 24

25 To Current Day and Beyond 25

26 26 Applying Newton s Laws

27 Teacher Pages 27

28 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

29 Student Pages 29

30 Calculating Area 30

31 Let s Pause for Questions Please type your questions in the chat! 31

32 LAB SAFETY 32

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34 34 Minimal cost Easy to assemble and use Parts at plumbing or hardware stores Pop! Rocket Launcher

35 35 Shopping and Assembly

36 Assembly 36

37 What qualifies a successful launch? 37

38 Let s Pause for Questions Please type your questions in the chat! 38

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40 40 Design Analyze Results Engineering Design Process Build Record Data Test

41 weight lift drag thrust Forces on a Rocket 41

42 center of gravity center of pressure Rocket Stability 42

43 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

44 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

45 Finding Center of Pressure Trace the shape of the rocket on cardboard Cut out the shape Determine the balance point x 45

46 Mathematical Approximation Center of Gravity d n d b d f 46

47 Mathematical Approximation Center of Pressure d n d b d f 47

48 Let s Pause for Questions Please type your questions in the chat! 48

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50 RocketModeler III 50

51 51 Rocket Wind Tunnel

52 52 Launch Altitude Tracker

53 53 Calculating Altitude Additional Explorations

54 Advanced High-Power Paper Rockets 54

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56 http: 56

57 Thanks to today s presenter! Marti Phipps NASA Explorer Schools Education Specialist Jet Propulsion Laboratory Pasadena, CA 57

58 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.

59 National Science Teachers Association David Evans, Ph.D., Executive Director Zipporah Miller, Associate Executive Director, Conferences and Programs NSTA Web Seminar Team Al Byers, Ph.D., Assistant Executive Director, e-learning and Government Partnerships Brynn Slate, Manager, Web Seminars, Online Short Courses, and Symposia Jeff Layman, Technical Coordinator, Web Seminars, SciGuides, and Help Desk 59

60 Upcoming Programs Human Body: Space Adaptations April 24, 2013 Teaching Climate With Models: Solving the Problems of Energy, Carbon, and Climate April 25, 2013 Monarch Butterflies and Citizen Science April 29, 2013 Register at 60