UWWI Presentation

1
A Mini Lesson Bridges Forces
How does a bridge work?
2
A Mini Lesson Bridges Forces

• How does a bridge work?
• Lets see what happens when a car drives across!

3
A Mini Lesson Bridges Forces

• How does a bridge work?
• Lets see what happens when a car drives across!

4
A Mini Lesson Bridges Forces

• How does a bridge work?
• Lets see what happens when a car drives across!
• What about a more complicated bridge?

5
A Mini Lesson Bridges Forces
Loads and Forces
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Activity Build a Suspension Bridge

• Task
• Build a suspension bridge
• Index cards, string, tape
• Test your design-load the bridge to failure
• 20 minutes
• How much weight will yours be able to hold?!

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Suspension Bridges
8
Galloping Gertie
9
Activity Recap

• What makes a good bridge?
• What are some OTHER loads that could impact a
  bridge??