nes: engineering design: forces and motion— balloon ... · 5/7/2012 · • 2 ‐4 hours –read...
TRANSCRIPT
LIVE INTERACTIVE LEARNING @ YOUR DESKTOP
May 7, 2012
NES: Engineering Design:Forces and Motion—
Balloon Aerodynamics Challenge
Presented by: Kristy Hill
Engineering Design:Forces & Motion‐
Balloon Aerodynamics Challenge
Engineering Design:Forces & Motion‐
Balloon Aerodynamics Challenge
Balloon Aerodynamics Challenge
Balloon Aerodynamics Challenge
• Have you had a chance to look at this lesson?
✔ Yes✖ No
SyllabusSyllabus• Lesson overview• NASA connection• Lesson in detail• Extensions
National StandardsNational Standards
• Grade Level: 6‐10• Changes of properties in matter• Motion & forces• Technological design
ObjectivesObjectives• Work through the engineering design process
• Observe the concepts of lift, drag, weight & thrust with a helium balloon
• Demonstrate the concepts of buoyancy & density
• 2 ‐ 4 hours–Read the guide–Gather materials–Test your own design–Set up the classroom
PreparationsPreparations
Do your students know?Do your students know?
Density
During which lessons are you covering density in
the classroom?
During which lessons are you covering density in
the classroom?
Type your answers in the chat box.
Let’s pause forquestions
from the audience.
Let’s pause forquestions
from the audience.
NASA ConnectionBalloon Aerodynamics
NASA ConnectionBalloon Aerodynamics
When might NASA use the concepts of density & neutral buoyancy?
When might NASA use the concepts of density & neutral buoyancy?
Enter any ideas into the chat box.
NASA ConnectionNASA Connection
Neutral BuoyancyNeutral BuoyancyPick the correct answer. a. A condition in which an object’s
mass is equal to the mass it displaces in a given medium
b. An object that neither floats or sinksc. Both a & bd. Neither a or b
Neutral BuoyancyNeutral BuoyancyPick the correct answer. a. A condition in which an object’s
mass is equal to the mass it displaces in a given medium
b. An object that neither floats or sinksc. Both a & bd. Neither a or b
NASA ConnectionNASA Connection
DragDragWhich statement is correct? a. Drag does not influence the space
station. b. Each day the space station loses
90 meters of altitude. c. Orbital decay is constant over
time.
DragDragWhich statement is correct? a. Drag does not influence the space
station. b. Each day the space station loses
90 meters of altitude. c. Orbital decay is not constant over
time.
NASA BalloonsNASA Balloons• Inflated, it can stand up to 900’ tall• Flies up to 25 miles in altitude• Helium‐filled• Carries instruments to study things such as cosmic rays without the distortion of the atmosphere
• Scientists track data from the payload
Let’s pause forquestions
from the audience.
Let’s pause forquestions
from the audience.
Lesson in DetailBalloon AerodynamicsLesson in DetailBalloon Aerodynamics
Basic Aerodynamic ForcesBasic Aerodynamic Forces
Basic Aerodynamic ForcesBasic Aerodynamic Forces
The LessonThe LessonThe Design Packet can be used to provide additional support to students.
DESIGN PROCESSDESIGN PROCESS
Sample PagesSample Pages
Team RolesTeam Roles• Give each team member a role.
–Project Engineer–Developmental Engineer–Facilities Engineer–Test Engineer Engineer
The ChallengeThe Challenge
• Design a system to establish helium balloons floating at different altitudes in the classroom (or field if outdoors).
Identify the ProblemIdentify the Problem
MaterialsMaterialsPer group of 4• 1 Mylar helium‐filled balloon• 1 watch, clock, or stopwatch• Paperclips, uncooked rice, seeds, beads, or other small objects
• 1 paper cup• 3 yards of ribbon or string• Thermometer or other sensors (optional)• NOTE: Students may only use these materials for the design.
Criteria & ConstraintsCriteria & Constraints• Create a list of questions related to the problem.
• Criteria – a rule or principle for testing something
• Constraints – limitations
RulesRules• Have students, as a class, establish rules for the experiment. –How long should it stay in place? –How high should it float?
Brainstorm Possible Solutions
Brainstorm Possible Solutions
• In the groups, brainstorm and come up with several ideas.
Select a DesignSelect a Design• Select one design. Pick the one you think will work best.
Build a ModelBuild a Model
• Build the model.• Test the model and evaluate.
• Make changes to make the design work better.
Test the ModelTest the Model
Refine the DesignRefine the Design
Share the SolutionShare the Solution• Share your design with the class.• What made your design work? • Did you change anything to make it work better?
Video SegmentsVideo Segments
Real World: Keeping the International Space Station in Orbit
Launchpad: Fluid Dynamics ‐What a
Drag!
EvaluateEvaluate• Rubric given in Design Packet guide
–Brainstorm –Generate ideas –Build the model –Test the model & evaluate–Refine the design–Share the design
Let’s pause forquestions
from the audience.
Let’s pause forquestions
from the audience.
Extensions and Resources
Balloon Aerodynamics
Extensions and Resources
Balloon Aerodynamics
ExtensionsExtensions• Attach a data sensor to the balloon and make adjustments to make the system float.
Culminating ActivityCulminating Activity• Create a “storyboard” poster that documents the evolution of the designs from initial to intermediate to final stage.
Any other extension ideas?
Any other extension ideas?
• Type responses into the chat box.
Let’s pause forquestions
from the audience.
Let’s pause forquestions
from the audience.
NASA Explorer SchoolsNASA Explorer Schools• Are you part of the NASA Explorer Schools program?
✔ Yes✖ No
NASA Explorer Schools WebsiteNASA Explorer Schools Website
Sign in or sign up
Video Tutorials
explorerschools.nasa.gov
Video Tutorials
Lesson Library
Finding the GuideFinding the Guide
Search
Finding the GuideFinding the Guide
Browse all lessons
Balloon Aerodynamics Challenge
Balloon Aerodynamics Challenge
NASA Guide
Live Seminars
Video Collection
Video CollectionsVideo Collections
CollaborationMaking Teaching EasyCollaborationMaking Teaching Easy
Search for:NASA Explorer Schoolson facebook.
Follow us on Twitter:@NASAExplorerSch
CollaborationCollaboration
Get Your CreditGet Your Credit
Thanks for participating today.
Thank you to the sponsor of tonight's Web Seminar:
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.
http://learningcenter.nsta.org
National Science Teachers AssociationDr. Gerry Wheeler, Interim Executive DirectorZipporah Miller, Associate Executive Director
Conferences and ProgramsAl Byers, Assistant Executive Director e-Learning
LIVE INTERACTIVE LEARNING @ YOUR DESKTOP
NSTA Web SeminarsPaul Tingler, Director
Jeff Layman, Technical CoordinatorBrynn Slate, Program Coordinator